Roger J Smith

You could speculate about what the 2021-2050 averages might be, then realize that in 2050, those might seem to be under attack in the same way that emerging 1991-2020 averages may seem a bit lower than what can really be expected now. But having said that, I would give these as the 2021-2050 CET values: 5.2 _ 5.5 _ 7.5 _10.2 _12.5 _15.0 _17.5 _17.0 _14.7 _11.8 _8.0 _6.3 __ (10.9) Generally speaking that equates to about warmest 20% of current data base, or an increase of about 0.5 over what the 1991-2020 averages are most likely to be. Since there will probably still be the same range within the data for the thirty years, most current monthly maximum values (averages for entire months) will quite likely be broken except perhaps Dec 2015 which had the look of a long-return-period singularity (it broke the existing mark by 1.6, previous new high values usually broke the existing value by a few tenths as with July and Sept 2006). Also May 1833 may take some doing. There is always the possibility that a long solar downturn has begun and will dig deeper into the solar "constant" than some projections, leading to a stabilizing as human warming signals balance out with the colder climatic signal of the quiet sun. I am not personally convinced this is locked in as this episode so far is more of a Dalton 2.0 than a new Maunder. Also, there could be imponderables like what happens to climate patterns if faster melt does begin in the arctic, a lot of low-salinity cold water is going to be flowing out of subarctic oceanic regions, so with what exact impacts on the Gulf stream, NAO and other factors? What if North America became a more reliable source region for continental arctic air than Siberia? Or the other way round, what if stronger warming over North America reduced the frequency of the east coast storm track intensification as Pacific zonal flow took over. In winters like that in the past, the storm track tended to be chopped up into somewhat random segments but moved further north into eastern Canada. I don't think we can model future climates just on some simplistic basis of saying all air masses warm up (although they likely would on a statistical basis). It's going to be complex and involve new wrinkles. Perhaps a much warmer Mediterranean would energize winter storms at that latitude with unknown effects on western Europe's climate but you might see storms following tracks that don't happen very often now (such as southern France to Belgium and Holland). Some of those might be capable of producing snow in Britain given the right synoptics. People tend to think that winter will disappear in a warming climate but bear in mind that the Great Lakes region continues to see quite an active winter and their latitudes are low to mid 40s. It's going to take a massive warming to eliminate winter from that regional climate.

Probably running 7.5 to 8.0 after two days.

Subject to final confirmation on 5th (from table value) the EWP scoring for January and two-month annual contest totals ... rank ___ (Jan 2020) ________________ (contest 2 mo) ______ points _01 ___ Born from the Void (81 mm) ___ Radiating Dendrite ___ 19.19 _02 ___ Midlands Ice Age (80.3 mm)___ Reef ______________ 18.13 _03 ___ mb018538 (80 mm) __________Emmett Garland _____ 17.39 _04 ___ Robbie Garrett (82.5 mm) _____ Pinball Wizard _______16.90 _05 ___ Radiating Dendrite (83 mm) ____Kentspur ___________16.82 _06 ___ Reef (84 mm) _______________Robbie Garrett ______ 16.59 _07 ___ Bobd29 (78 mm) t6 Jan _______Twilight ____________ 16.51 _08 ___ Twilight (85 mm) _____________Thundery Wintry Shwrs _ 15.85 _09 ___ Mr TOAD (85 mm - 2nd ent) ____mb018538 __________15.70 _10 ___ SteveB (76 mm) _____________ Stationary Front _____ 15.31 ______________________________________________________________ 11th to 22nd places in annual contest at present ... 11 Jonboy (14.90), 12 Don (14.19), 13 Relativistic (14.03), 14 Midlands Ice Age (13.89) 15 Virtualsphere (13.63), 16 General Cluster (13.53), 17 J10 (13.24) 18 Dog Toffee (13.20), 19 Godber.1 (13.05), 20 davehsug (12.52) 21 Bobd29 (12.25), 22 Dr(S)No (12.02). ====================================================================== These standings will change slightly unless the final value is 81.0 mm, as some of the scoring is currently based on tied values that may be differently ranked after a decimal place is used, but as long as the outcome is 80.5 to 81.5 all changes would be quite small. Watch for an update around the 5th on final scoring for month and contest year.

No update on the CET, tick tock ... But the EWP tracker has stopped moving at 81 mm. Will be back with a slightly revised leaderboard (a few posts back I had one for an 80 mm finish). Born From the Void hit the target right on. Other top scores for January and the two-month annual totals in a few minutes ...

CET extremes for February (1772-2019) and 1981-2010 means ____________________________________________________________ DATE .... MAX (year) .... MIN (year) .. .. 1981-2010 avg, cum to date .... Highest and lowest running CET 01 Feb ... 11.4 (1923) ... -6.8 (1956) ... ... ... ... ... 4.4 ... ... ... 4.4 .... .... ... 11.4 (1923) ... ... ... -6.8 (1956) 02 Feb ... 11.0 (1923) ... -6.5 (1956) ... ... ... ... ... 4.4 ... ... ... 4.4 .... .... ... 11.2 (1923) ... ... ... -6.6 (1956) 03 Feb ... 12.2 (2004) ... -5.4 (1841 & 1956) ... ... 4.6 ... ... ... 4.5 .... .... ...10.8 (1923) ... ... ... -6.2 (1956) 04 Feb ... 12.8 (2004) ... -5.0 (1912) ... ... ... ... ... 5.1 ... ... ... 4.7.... .... ... 11.3 (2004) ... ... ... -5.0 (1956) 05 Feb ... 11.8 (2004) ... -6.3 (1830) ... ... ... ... ... 5.3 ... ... ... 4.8 .... .... ... 11.4 (2004) ... ... ... -4.9 (1830) 06 Feb ... 10.3 (1866) ... -7.3 (1895) ... ... ... ... ... 5.4 ... ... ... 4.9 .... .... ... 10.9 (2004) ... ... ... -5.1 (1830) 07 Feb ... 10.5 (1869) ... -7.2 (1895) ... ... ... ... ... 4.7 ... ... ... 4.9 .... .... ... 10.3 (1994) ... ... ... -3.7 (1830) 08 Feb ... 11.4 (1903) ... -8.3 (1895) ... ... ... ... ... 4.4 ... ... ... 4.8 .... .... ..... 9.6 (1994) ... ... ... -3.6 (1895) 09 Feb ... 11.4 (1831) ... -8.8 (1816)*... ... ... ... ... 4.0 ... ... ... 4.7 .... .... ..... 9.2 (1869) ... ... ... -4.0 (1895) 10 Feb ... 12.0 (1899) ... -6.2 (1895) ... ... ... ... ... 4.1 ... ... ... 4.7 .... .... ..... 9.4 (1869) ... ... ... -4.2 (1895) 11 Feb ... 11.4 (1939) ... -4.2 (1986) ... ... ... ... ... 4.2 ... ... ... 4.6 .... .... ..... 9.3 (1869) ... ... ... -4.1 (1895) 12 Feb ... 11.4 (1998) ... -7.7 (1845) ... ... ... ... ... 4.7 ... ... ... 4.6 .... .... ..... 8.9 (1869) ... ... ... -4.1 (1895) 13 Feb ... 12.0 (1998) ... -7.0 (1929) ... ... ... ... ... 4.1 ... ... ... 4.6 .... .... ..... 8.8 (1869) ... ... ... -4.2 (1895) 14 Feb ... 10.2 (1794) ... -7.1 (1929) ... ... ... ... ... 3.4 ... ... ... 4.5 .... .... ..... 8.8 (1869) ... ... ... -4.3 (1895) 15 Feb ... 11.2 (1958) ... -8.0 (1929) ... ... ... ... ... 3.8 ... ... ... 4.4 .... .... ..... 8.7 (1869) ... ... ... -4.3 (1895) 16 Feb ... 10.0 (1928) ... -7.3 (1855) ... ... ... ... ... 3.7 ... ... ... 4.4 .... .... ..... 8.8 (1869) ... ... ... -4.1 (1895) 17 Feb ... 10.7 (1878) ... -7.1 (1855) ... ... ... ... ... 3.7 ... ... ... 4.4 .... .... ..... 8.7 (1869) ... ... ... -4.0 (1895) 18 Feb ... 11.7 (1945) ... -3.9 (1855) ... ... ... ... ... 3.8 ... ... ... 4.3 .... .... ..... 8.6 (1869) ... ... ... -3.8 (1895) 19 Feb ... 10.6 (1893) ... -5.0 (1777) ... ... ... ... ... 4.0 ... ... ... 4.3 .... .... ..... 8.4 (1869) ... ... ... -3.6 (1895) 20 Feb ... 11.3 (1990) ... -6.6 (1785) ... ... ... ... ... 3.8 ... ... ... 4.3 .... .... ..... 8.3 (1869) ... ... ... -3.4 (1895) 21 Feb ... 11.2 (2019) ... -4.7 (1810) ... ... ... ... ... 4.1 ... ... ... 4.3 .... .... ..... 8.2 (1869) ... ... ... -3.2 (1895) 22 Feb ... 10.7 (1953) ... -3.3 (1855) ... ... ... ... ... 4.3 ... ... ... 4.3 .... .... ..... 7.9 (1869) ... ... ... -3.0 (1855) 23 Feb ... 11.7 (2012) ... -3.5 (1947) ... ... ... ... ... 4.3 ... ... ... 4.3 ..... .... ..... 7.7 (1779&1869) ..-2.9 (1855) 24 Feb ... 11.4 (1846) ... -6.7 (1947) ... ... ... ... ... 4.7 ... ... ... 4.3 .... .... ..... 7.7 (1779) ... ... ... -2.6 (1855) 25 Feb ... 11.0 (1922) ... -5.1 (1947) ... ... ... ... ... 4.3 ... ... ... 4.3 .... .... ..... 7.6 (1779&1869) ..-2.3 (1855&1895) 26 Feb ... 11.2 (1882) ... -4.7 (1783) ... ... ... ... ... 4.9 ... ... ... 4.3 .... .... ..... 7.7 (1779&1869) ..-2.1 (1855&1895&1947) 27 Feb ... 11.5 (1828) ... -2.8 (1929) ... ... ... ... ... 5.3 ... ... ... 4.4 .... .... ..... 7.8 (1779) ... ... ... -2.0 (1855&1895&1947) 28 Feb ... 11.4 (1959) ... -3.8 (1785) ... ... ... ... ... 5.2 ... ... ... 4.4 .... .... ..... 7.9 (1779) ... ... ... -1.9 (1947) 29 Feb ... 12.0 (1960) ... -2.4 (1904) ... ... ... ... ... 4.4 ... ... ... 4.4 .... .... ..... 6.9 (1872) ... ... ... -0.2 (1956) *(1895 was -7.4 on 9th, coldest week in Feb was 6-12 Feb 1895 at --6.3).

The surprise factor in this is vanishingly small. However, a similar forecast could have been issued in 2006, would have been essentially correct, yet we had both ends of 2010, March 2013, and a few other treats along the way. So I wouldn't throw too many toys out of the pram, what would you prefer anyway, ten slightly colder years, or nine warmer ones and another 2010?

Never second guess yourself, that's what everyone else is here to do.

My LRF is doing pretty well (for an alchemist).

I would agree that it's unlikely to turn cold except possibly in the last week, but a really high CET may not be necessarily nailed down, as we seem to be headed for a very stormy mid-month period and sometimes that brings in wrap-around colder air masses that are not modified very much after moving so quickly from Greenland to the British Isles. This is why I went to around 5 thinking also that the last week might turn a lot colder and take us from a long stretch in the 6's down to the low 5 zone. Looks rather Darwin-like in about ten days. But sometimes the models go a bit overboard at that time frame. The really windy systems usually don't produce heavy rainfall either, just 5-10 mm amounts. So that went into my estimate as well. Have done so-so on the first two forecasts this contest year, an improvement for me.

We don't often see a provisional CET for the last day of the month without the final version being posted, but it's there today (6.5 C after 31st came in at 9.9, not quite a record value). Meanwhile the most likely finish for the EWP is now estimated at 81-82 mm. The tracker says 80 mm to 30th and the map for amounts on 31st is mostly a dry slate but a few pockets of 10-20 in Wales and Cumbria might mean 1 or even 2 for the day. I will have the preliminary estimate for scoring tomorrow and the final table value on the 5th.

Table of entries for CET and EWP contests -- Feb 2020 -- numbers in brackets give the order of entry of last revised versions. If only one of the two forecasts is amended, the unchanged one retains its original order but that may be expressed as n.5 if it's the EWP portion. CET _ EWP _ FORECASTER ______________ CET _ EWP _ FORECASTER 10.0__ 500.0 __ Lettucing Gutted (2) __________ 5.6 __ ------ __ Walsall Wood Snow (36) 7.5 ___ 51.0 __ Shillitocet (two) (L1-2) ________ 5.6 ___ 63.5 __ Kentspur (37) 7.3 ___ 94.0 __ syed2878 (35) _______________5.6 __ ------ __ sundog (45) 7.1 __ 135.0 __ prolongedSnowLover (62,44.5) __5.6 __ 100.0 __ Mulzy (54) 7.0 ___ 51.0 __ Blast From the Past (1) ________5.5 ___ 93.0 __ Timmytour (4) 6.8 ___ 58.7 __ Thundery Wintry Showers (L2-3) 6.6 ___ 35.0 __ B87 (6) ____________________ 5.5 ___ 74.1 __ TomW (7) 6.6 ___ 72.0 __ Don (64) ___________________ 5.5 __ ------ __ Mark Bayley (39) 6.5 ___ 59.6 __ Feb1991Blizzard (59) _________ 5.5 ___ 72.0 __ Reef (48) 6.4 ___ 80.0 __ Pegg24 (12) ________________ 5.4 ___ ------ __ Summer Blizzard (30) 6.4 ___ 72.0 __ Cymro (16) _________________ 5.4 ___ ------ __ damianslaw (47) 6.4 __ 122.0 __ Robbie Garrett (43) ___________5.4 ___ 64.0 __ Norrance (52) 6.3 ___ 88.0 __ DAVID SNOW (60) ___________ 5.3 ___ 86.0 __ snowray (46) 6.3 __ ------ __ Quicksilver1989 (63) ___________ 5.2 ___ 86.0 __ brmbrmcar (26) 6.3 ___ 56.0 __ coldest winter (L1-4) __________ 5.2 ___ 60.0 __ weather-history (33) 6.2 __ 100.0 __ Igloo (8.) ___________________ 5.2 ___ 70.0 __ daniel* (42) 6.2 __ 112.8 __ Kirkcaldy Weather (9) _________ 5.1 ___ 66.6 __ Dog Toffee (3) 6.2 ___ 70.0 __ DiagonalRedLine (21) _________4.9 ___ 71.5 __ 1990-2019 average 6.1 ___ 77.0 __ Stationary Front (44) __________ 4.9 ___ 70.4 __ Roger J Smith (31) 6.1 ___ 67.0 __ Senior Ridge (67) _____________4.9 ___ 69.0 __ Davehsug (66) 6.1 __ ------ __ Duncan McAlister (L1-6) ________ 4.9 ___ 70.0 __ Relativistic (L2-2) 6.0 ___ 54.5 __ Polar Gael (11) ______________ 4.8 ___ 67.0 __ Stewfox (18) 6.0 ___ 92.0 __ Weather26 (14) ______________ 4.8 __ 120.0 __ Godber (L1-1) 6.0 ___ 50.0 __ The PIT (24) ________________ 4.7 ___ 94.4 __ LetItSnow! (22) 6.0 __ 120.0 __ Dr(S)No (L3-3) ______________ 5.9 __ 101.0 __ Mr TOAD (27) _______________ 4.7 __ ------ __ Kentish Man (51) 5.9 ___ 65.0 __ General Cluster (41) __________ 4.7 ___ 71.5 __ Midlands Ice Age (55) 5.9 ___ 75.0 __ mb018538 (49) ______________ 4.6 ___ 48.0 __ virtualsphere (29) 5.9 __ ------ __ Froze were the Days (61) _______ 4.6 ___ 58.0 __ freeze (34) 5.9 ___ 95.0 __ Mapantz (L1-5) ______________ 4.5 ___ 60.0 __ Twilight (15) 5.8 __ ------ __ Carl46Wrexham (19) ___________4.5 ___ 75.0 __ J10 (65) 5.8 ___ 74.0 __ Bobd29 (25) _________________4.4 ___ 62.0 __ LottieKent (23) 5.8 __ ------ __ dancerwithwings (38) __________ 4.4 __ 66.5 __ 1981-2010 average 5.8 ___ 95.0 __ Mr Maunder (56) _____________ 4.2 ___ 70.0 __ jonboy (50) 5.8 ___ 71.0 __ Born From The Void (57) _______ 4.1 ___ 61.5 __ CheesepuffScott (5) 5.8 ___ 77.0 __ February1978 (L2-1) __________ 4.0 __ ------ __ Fozfoster (32) 5.7 ___ 88.0 __ Emmett Garland (10) __________ 3.2 ___ 65.0 __ JeffC (13) 5.7 ___ 68.0 __ SteveB (17) _________________ 3.2 ___ 68.0 __ Neil N (20) 5.7 __ ------ __ Man With Beard (40) ___________ 2.1 ___ 67.0 __ SLEETY (28) 5.7 ___ 77.0 __ seaside60 (53) _______________ 5.7 ___ 86.0 __ Beet (58) ____________________ 5.7 __ ------ __ Summer Sun (L1-3) _____________ -- median of 67 on-time forecasts and six late (one day), three also two days late and one came in three days late. -- -- -- for total 77 CET forecasts (median is average of 38th and 39th ranked) -- -- -- 5.70 C -- 71.5 mm (63 EWP forecasts) ================================================= EWP forecasts in order 500 LG 135 PSL .. 122 RG .. 120 Godb^,Dr(S)No^^^ 112.8 KW .. 101 MrT .. 100 Ig, Mul 95 MrM,map^ .. 94.4 LIS .. 94 syed .. 93 Tim .. 92 wx26 .. 88 EG,DS .. 86 brm,snow,beet 80 pegg ... 77 SF,sea,F78^ ... 75 mb.J10 .. 74.1 TomW ... 74 bobd ... 72 cym,Reef,Don 71.5 MIA con and 1990-2019 .. 71 BFTV .. 70.4 RJS .. 70 DRL, dan*Jon, Rel^^. 69 dave 68 Ste, NN ... 67 stew, SLE, SR ... 66.6 DT ... 66.1 1981-2010 ... 65 Jeff, GC, 64 Norr .. 63.5 KS .. 62 lot .. 61.5 CPS .. 60 Twi, w-h .. 59.6 Feb91 .. 58.7 TWS^^ 58 fre .. 56 cw^ .. 54.5 PG .. 51 BFTP, Shil^ .. 50 PIT .. 48 virt .. 35 B87 ... ^ denotes one day late entries. ^^ two days late 55 entries on time, five more one day late, two also two days late, one is three d late, ... 63 in total ... consensus 71.5 mm. ========================================================= Note -- now closed to further entries (end of 3rd of February)

The earlier forecasts are probably a mixture of those wanting to go cold (easier to do when you can\t see much of the month on the current model run) or people resigned to a mild outcome no matter what so they would like first go at their value that they figure they will be choosing later anyway. Or the sheer excitement of seeing the thread?

The EWP seems to be heading for 80 mm or close to that, which is our consensus forecast (everyone take a bow). With that value used for provisional scoring the closest forecasts for the month (other than consensus) would be 1. mb018538 __ 80 mm 2. Midlands Ice Age __ 80.3 mm 3. Born From The Void _ 81 mm 4. Bobd29 _______ 78 mm 5. Robbie Garrett _ 82.5 mm 6. Radiating Dendrite _ 83 mm 7. Reef ___ 84 mm and SteveB __ 76 mm 9. Twilight __ 85 mm (first entry) 10. Mr TOAD __ 85 mm (second entry) --------------------- and the top ten in the annual standings after two months would be 1. Radiating Dendrite 2. Reef 3. Emmett Garland 4. Pinball Wizard 5. Kentspur 6. Robbie Garrett 7. Twilight 8. mb018538 9. Thundery Wintry Showers 10. Stationary Front ----------------------------------------------- Will update on this scoring when a more precise value is known.

4.9 C and 70.4 mm.

Current projection for EWP (at 65 mm) is around 80 to 85 mm again.

EWP still on 64 mm but projections have increased somewhat, looks like 90-95 is the new target with a range across the country from 15 to over 50 mm expected, much of that towards the last few days.

EWP was at 64 mm after 19 days, probably still is now, and will add perhaps 10-15 mm by end of the month on current guidance. The predictions in that zone (74-79 mm) include these (65 to 85 mm to give a wider margin of error) ... I have included their CET forecasts and also all CET forecasts 6.0 and above if not already part of the EWP set. The top CET forecasts may not score as well as some left off this list, if we finish below 6.5 especially. Numbers in brackets are order of entry. Bold print shows the top contenders for best combined (assuming 6.6, 80). ====================================== 9.5 __ 200.0 __ Lettucing Gutted (4) 8.1 __ ------ __ shillitocet (28) 7.8 __ ------ __ coldest winter (26) 7.7 __ 250.0 __ igloo (24) 7.4 ___ 66.9 __ Roger J Smith (18) 7.4 ___ 60.0 __ syed2878 (19) 7.1 ___ ------ __ Andrew R (L1-4) 6.9 ___ 64.0 __ SLEETY (10) 6.6 ___ 99.0 __ Dog Toffee (22) 6.5 ___ 65.0 __ Norrance (63) 6.3 ___ 24.0 __ ChrisBell-nottheWxman (35) 6.3 __ 102.0 __ I Remember Atlantic 252 (2) 6.2 ___ 80.0 __ mb018538 (70) 6.1 ___ 54.0 __ BLAST FROM THE PAST (L2-1) 6.0 ___ 99.0 __ virtualsphere (36) 6.0 ___ 84.0 __ Reef (66) 6.0 ___ 65.0 __ Booferking (L2-4) (EWP contenders only below this) 5.8 ___ 69.0 __ Ultima Thule (L1-5) 5.6 ___ 76.0 __ SteveB (30) 5.6 ___ 65.2 __ Thundery Wintry Showers (44, 29.5) 5.6 ___ 65.0 __ weather-history (50) 5.6 ___ 68.0 __ Kentspur (L2-2) 5.5 ___ 66.0 __ Stationary Front (45) 5.5 ___ 71.0 __ Pinball Wizard (L2-3) 5.3 ___ 81.0 __ BornFromTheVoid (46) 5.3 ___ 66.0 __ davehsug (69) 4.9 ___ 65.0 __ Carl46Wrexham (52) 4.8 ___ 70.0 __ Godber 1 (51) 4.5 ___ 85.0 __ Twilight (5) 4.5 ___ 85.0 __ Mr TOAD (25) 4.4 ___ 83.0 __ Radiating Dendrite (20) 3.9 ___ 67.0 __ daniel* (49) 3.1 ___ 75.0 __ jonboy (L1-3) ___

That's fine when you first post, what about the edit screen? The menu is smaller (no size or colour options).

As you may have noticed I have begun to post the results of the Toronto study. It would help me if anyone could explain how one can edit type size in a post, as the toolbar that appears does not contain an option for that. I need to reduce some of the placeholder posted words to a better (smaller) type size. TIA. It will no doubt take a week or two to fill out all the posts that I set up. Just wanted to have all the data eventually appearing in sequence with any discussion after the data have all appeared. So kindly don't post in that thread until the data sets are complete. The excel file will become available in March when we have 180 full years of data (the series began on March 1st of 1840).

The format follows the posts above (see preamble two posts back for general details) September precip records are also rainfall records since there have only been two days with traces of snow (these are noted below). With a lot of interesting tropical connections and two-day totals, I will present September with a larger space for daily notes. Then it's on to October where we start to pick up measurable snowfall again, still quite a few tropical connections to rainfall amounts. ... Nov and Dec will be in a separate post after this one is finished. <<< September precip records >>> DATE __ Max rain (precip) _ date __ notes _ 01 __ 1.76" (44.7 mm) _ 1899 _ warm frontal wave _ also 1.42" (36.1 mm) 1878, 2d (31st Aug-1st Sep) 2.16" (54.9 mm). _ 02 __ 1.73" (43.9 mm) _ 1930 _ cold front _ also 1.93" (49.0 mm) 1854 1st-2nd _ 03 __ 1.42" (36.0 mm) _ 1981 _ 04 __ 1.37" (34.9 mm) _ 2012 _ 2d (1981) total 2.55" (64.6 mm) _ 4th 1981 (1.13" or 28.6 mm) had been record to 2012 _ 05 __ 1.49" (37.8 mm) _ 1910, 1918 _ 2d (4-5 1918) 1.89" (47.9 mm) _ 2d (5-6 1910) 2.20" (55.9 mm) _ 06 __ 1.99" (50.5 mm) _ 1853 _ frontal wave _ 07 __ 3.02" (76.6 mm) _ 1996 _ H Fran (from s.e. US to L Ont) _ also 2.35" (59.7 mm) 1869, H5 1869 near Gulf coast, fr wave _ 08 __ 1.71" (43.4 mm) _ 1854 _ followed record heat _ note re 1869 above, 2d rain 2.82" (71.6 mm) _ 09 __ 2.65" (67.3 mm) _ 1847 _ no maps but cf evident temps 75F to 60F 9-10. Also followed non-rec 1.75" (44.5 mm) 5th-6th _ 10 __ 3.23" (82.0 mm) _ 1986 _ strong low warm fronts _ added 0.24" (6.2 mm) 11th, 2d 3.47" (88.2 mm) _ 11 __ 1.16" (29.5 mm) _ 1890 _ 2.93" total 11th-12th 1842, not separated in source, could have broken this and/or next record. _ 12 __ 1.45" (36.8 mm) _ 1915 _ warm front _ 2d (12th-13th) total 2.20" (55.9 mm) _ 13 __ 3.09" (78.5 mm) _ 1878 _ 2d total 12th-13th 4.05" (103.1 mm) and 3d 11th-13th 4.81" (H5 1878 moved in from mid-Atl) note (a) _ 14 __ 3.46" (87.9 mm) _ 1843 _ 2d total 14th-15th 5.18" (131.5 mm) _ warm fronts (cool high over New England as per Caswell) _ 15 __ 2.29" (58.2 mm) _ 1870 _ q.s. front, 15th-16th 2.52" (64.0 mm). _ 16 __ 2.38" (60.4 mm) _ 1888 _ remnants of TS 5 _ 17 __ 2.54" (64.5 mm) _ 1855 _ remnants of H 5 (LA landfall 16th) interacting with frontal system Great Lakes _ 18 __ 2.07" (52.6 mm) _ 1945 _ remnants of H 5 (additional 0.59" (15.0 mm) on 17th, 2d total 2.66" (67.6 mm) _ 19 __ 1.24" (31.6 mm) _ 2001 _ 20 __ 1.16" (29.5 mm) _ 1852 _ warm fronts ___ Tr snow (1956) _ earliest recorded trace of snow autumn season _ 21 __ 1.30" (33.0 mm) _ 1967 _ 2d 1938 (21-22) 2.52" (1.15+1.37) (64.0 mm) from inland loop of 1938 "Long Island" Hurricane _ 22 __ 1.96" (49.9 mm) _ 2021 _ (note b) replaced 1.87" (47.4 mm) 1989 _ 23 __ 1.15" (29.2 mm) _ 1931 _ cold front __ 2001 near tie of 28.9 mm (1.14") _ 24 __ 2.36" (59.9 mm) _ 1977 _ warm front, 0.41" (10.4 mm) added on 25th, 2.77" 2d total (70.3 mm) (also 2.25" (57.2 mm) 1843.) _ 25 __ 1.91" (47.5 mm) _ 1866 _ fronts stalled to south _ 26 __ 1.25" (31.8 mm) _ 1880 _ cold front ___ Tr snow in 1918 _ 27 __ 1.86" (47.2 mm) _ 1861 _ H5 1861 (0.18" or 4.6 mm prev day) _ also in 2002, 1.29" (32.8 mm) from remnants of H Isidore _ 28 __ 1.44" (36.6 mm) _ 1967 _ low to southeast, cool northeast flow _ 29 __ 2.07" (52.4 mm) _ 1999 _ (1986 had 52.2 mm which also converts to 2.07") _ both events were frontal non-tropical _ 30 __ 1.25" (31.8 mm) _ 1840 _ Snow fell just north of Toronto, over an inch accumulated (1974) (no report of snow for this data base) _____________________________________________________ Notes: (a) The 1878 three-day deluge intensified as H5 moved up from Georgia to mid-atl states to L Ontario. Sept 13 1878 was a Friday. As noted in May (notes 21st) this was one of the heaviest three-day rainfalls on record. Also on 13th more recently, unable to match 1878, two other memorable rainstorms. The path of H Frederic (1979) brought the remnant low into NY state and Toronto had 0.94" (23.8 mm) on 13th and another 0.54" (13.8 mm) on 14th, total rainfall 1.48" (37.6 mm). In eastern Ontario amounts closer to six inches fell. This was basically the only rainfall in the month of Sept 1979 which was otherwise very sunny and near normal in temperatures. Then in 1996 an intense low formed over Lake Huron, some dubbed this the "Huronicane" because it brought strong wind gusts in places, but for Toronto, the main event was a rainfall of 1.24" (31.6 mm) with a three-day total rainfall (11th-13th) of 2.20" (56.0 mm). The low was linked by a trough to strong H Hortense off the Carolina coast moving northeast. (b) This record from 2021 replaces 1.87" (47.4 mm) from remnants of Hugo which made landfall in SC and tracked rapidly into the Toronto region maintaining TS intensity to about Peterborough ON where the author was then living, a very small eye feature was observed there at about 2345h local time and rainfalls there were over 50 mm. (c) Rainfall of 2.13" (54.1 mm) on Sept 29-30, 1896, was caused by the merger of Hurricane Four of 1896 with low pressure over the Great Lakes. The hurricane moved north from Georgia after a landfall near Cedar Key, FL. It is known as the Cedar Keys Hurricane and caused considerable damage in the southeast U.S. and mid-Atlantic states. Neither daily amount quite matched the records although the 30th was close at 1.21" (30.7 mm). ----------- ==================================================== ------------ <<< October precip records >>> Snowfall daily records return now, but two-day snowfall will not be relevant until November; any two-day totals in October that are not self-evident from the daily data will be explained in notes. Daily precip records are still entirely rainfall except possibly near the end of the month when a snowfall event in Oct 1844 that we only have as part of a monthly total may have edged out one of the last three snowfall and precip records (as explained in note for Oct 29). There continue to be associations of rainfall records with tropical events especially up to the middle of the month. DATE __ Max rain (precip)_date__Max snow ___ date ___ notes _ 01 __ 1.27" (32.3 mm) _ 1915 __ 0.3" (0.8 cm) _ 1920 __ rain assoc H4 1915 _ snow (Oct 1, 1920), with 0.60" (15.2 mm) rain. _ 02 __ 0.68" (17.3 mm) _ 1905,60 _ Trace (Tr cm) 1945, 1974_ 2d rain 1.62" (40.9 mm) 1st-2nd 1915 _ 03 __ 2.05" (52.1 mm) _ 1890 __ Trace (Tr cm) 1888, 1945,89 _ 1890 rain warm frontal _ 04 __ 1.07" (27.2 mm) _ 1867 ___ 0.0" (0.0 cm) _ all ___ 1867 rain from front linked to Gulf coast H7 of 1867 (it stayed well south). _ 05 __ 2.25" (57.2 mm) _ 1995 ___ Trace (Tr cm) 1935 __ 1995 rain from H Opal (2d 2.74" 69.6 mm) 5th-6th. _ 06 __ 1.31" (33.3 mm) _ 1875 ___ 0.2" (0.5 cm) _ 1889 __ 1875 rain from stalled fronts south, 1889 snow fell with 0.36" 2d rain. _ 07 __ 3.16" (80.3 mm) _ 1849 ___ Trace (Tr cm) 1876,2000_ 1849 rain assoc H3 1849 which made landfall in se MA. see note (a) _ 08 __ 1.12" (28.4 mm) _ 1977 ___ Trace (Tr cm) 1857,64,76,95,96 _ 09 __ 1.66" (42.2 mm) _ 1950 ___ Trace (Tr cm) 1925, 76 __ 1950 rain from slow moving low south of Great Lakes _ 10 __ 0.97" (24.6 mm) _ 1921 ___ Trace (Tr cm) 1881,1906,25,64,93 __ 1921 rain cold fronts _ 11 __ 1.33" (33.8 mm) _ 1950 ___ 0.8" (2.0 cm) _ 1906 ___ 1950 rain from second low following event on 9th _ 12 __ 1.10" (27.9 mm) _ 2011 ___ 0.3" (0.8 cm) _ 1932,36 _ 2011 2d rain (11th-12th) 1.66" (42.1 mm). warm fronts. _ 13 __ 1.93" (49.0 mm) _ 1885 _ Trace (Tr cm) 1855,74,1909,36,37,88,2006 _ 1885 rain assoc TS 8 of 1885 2d rain (13-14) 2.22" (56.4 mm) _ 14 __ 1.26" (32.0 mm) _ 1893 ___ 0.1" (0.3 cm) _ 1876 ___ 1893 rain from H9 (landfall near NYC) 2d rain (13-14) 2.26" (57.4 mm) _ 15 __ 3.42" (86.9 mm)_ 1954 ___ Trace (Tr cm) 1855,72,76,1961,78 __ 1954 rain from H Hazel (4.00" 101.6 mm) 14th-15th _ note (b) _ 16 __ 0.83" (21.1 mm) _ 2014 ___ Trace (Tr cm) 1854, 76 ___ frontal system stalled as H Gonzalo moved towards Bermuda _ 17 __ 2.15" (54.6 mm) _ 1842 ___ 3.3" (8.4 cm) _ 1875 ___ 1875 snow cold low moving southeast _ also 1.76" (44.7 mm) rain 2006. _ 18 __ 1.17" (29.7 mm) _ 1937 ___ 0.1" (0.3 cm) _ 1926 ___ 1937 rain strong warm fronts _ 19 __ 2.16" (54.9 mm) _ 1906 ___ 0.8" (2.0 cm) _ 1952 ___ 1906 rain frontal system interacted with H8 of 1906 then in n FL _ 20 __ 0.84" (21.3 mm) _ 1995 ___ 0.2" (0.5 cm) _ 1888 ___ 1995 rain from frontal trough _ 19th-20th 2.33" (59.2 mm) 1916 _ note (c) _ 21 __ 1.46" (37.1 mm) _ 1965 ___ 4.8" (12,2 cm)_ 1969___ 1969 snow from low tracking southeast across region _ note (d) _ 22 __ 1.57" (33.6 mm) _ 1929 ___ 0.5" (1.3 cm) _ 1880 ___ 1929 non-trop low that formed over GA and tracked north to OH then nw. _ 23 __ 1.84" (46.7 mm) _ 1957 ___ 2.2" (5.6 cm) _ 1880 ___ 1957 rain from strong low tracking IL-OH-NY, 1880 sn assoc nor'easter _ 24 __ 0.88" (22.4 mm) _ 1917 ___ 0.1" (0.3 cm) _ 1879 ___ 1917 rain assoc inverted trof feature south tracking slowly east _ 25 __ 1.31" (33.3 mm) _ 1980 ___ 0.8" (2.0 cm) _ 1962 ___ 1980 rain strong nor'easter, 1962 snow weak low in polar northerly _ 26 __ 1.29" (32.8 mm) _ 1872 ___ 2.0" (5.1 cm) _ 1865,69 _ 1872 rain from remnant low H5 tracking to east (t.d. near MD) _ (e) _ 27 __ 1.30" (32.9 mm) _ 2019 ___ 1.2" (3.0 cm) _ 1911 ___ 2019 rain from remnants of TS Olga moving north from AL _ note (f) _ 28 __ 2.30" (58.3 mm) _ 2015 ___ 3.7" (9.4 cm) _ 1925 ___ 1925 snow from trough that eventually formed coastal low _ note (g) _ 29 __ 1.83" (46.5 mm) _ 1852 ___ 1.4" (3.6 cm) _ 1895 ___ 1852 rain from warm fronts (2.26" - 56.5 mm fell 28th-30th) _ note (h) or 29__ 1.83" (46.5 mm) _ 1852 ___ 8.0" (20.3 cm) _1844___ 1852 rain from warm fronts (2.26" - 56.5 mm fell 28th-30th) _ note (h) _ 30 __ 0.97" (24.7 mm) _ 1863 ___ 1.6" (4.1 cm) _ 1906 ___ 2d snowfall 2.2" (5.6 cm) 1906 .. weak low tracking to south of L Erie. or 30__ 0.97" (24.7 mm) _ 1863 ___ 4.0" (5.1 cm) _ 1844 ___ 2d snowfall 12.0" (30.5 cm) 1844 .. also low tracking to south of L Erie. _ 31 __ 0.95" (24.1 mm) _ 2019 ___ 0.5" (1.3 cm) _ 1875 ___ 2d rainfall 1.62" (41.2 mm) 30th-31st. (alternative cases for 1844 snowfall discussed in note h below) _________________________________________________________________________________________ (a) There are no weather maps available for 1849, but from Caswell's Providence RI journal, can see that H3 came ashore on the night of Oct 6-7 and dropped 2.5" rain there (storm total). He reported strong winds and thunder but did not use the word hurricane. Elsewhere I was able to discover that H3 had skirted Long Island and hit somewhere near Cape Cod. The Ontario rain was either a later consequence of its inland track or more likely from a separate low already in place there. Temperatures at both Toronto and Providence remained near 50 F (10 C) for several days on either side of the rainfall event indicating a generally cyclonic upper steering pattern. Toronto had received light rainfalls adding up to 0.60" (15.2 mm) for the four previous days and added .03" on the 8th for a total event rainfall of 3.78" (96.0 mm). This was the heaviest October one-day rain until 1954 (15th) and remains the second highest one-day total for the month. (added later) _ The wetterzentrale archives now include maps for the 1840s and late 1830s. Some appear rather rudimentary (the Jan 6-7 1839 storm that hit Ireland looks much underdeveloped compared to other maps I have seen in research articles). So I am taking these only for their tracks and positions, the intensity portion may be very poor in places. The maps more or less match what I had speculated about the set-up for this 1849 event, a coastal hurricane graze capturing an inland cold-core low is suggested. Rather than looping inland it appears this hurricane stalled near Boston and then moved east after the phase. (b) Hurricane Hazel is probably the most notorious weather event of Toronto's considerable weather history. Although the storm was more likely a transitioning tropical storm as it crossed Lake Ontario after a landfall in North Carolina, it is usually referred to as "Hurricane Hazel" in recollections. The fast-moving storm created very strong wind gusts also (over 100 km/hr) and dropped heavier rain a little further west and northwest (8" or 200 mm at Snelgrove, ON northwest of the airport). This caused the Humber River, which enters Lake Ontario a few kms west of downtown, to flood and swept away a residential area causing around 80 fatalities. This event led to flood control "conservation" measures being adopted by Ontario's government. This calendar day rainfall is October's heaviest. In 1943, 1.35" had fallen on the same date followed by 0.67" on 16th (2.02" or 51.3 mm). Those two daily records survived 11 and 71 years respectvely. This rainfall came from a trapped frontal wave associated with strong H9 off the southeast U.S. coast. While that hurricane went on to a landfall in Nova Scotia on Oct 17th, the frontal wave was pulled into the hurricane's circulation after the 16th. (c) The rainfall record for Oct 19 was nearly matched in 1916 (1.70") and a two-day rainfall of 2.33" (59.2 mm) was associated with the approach of remnants of H 14 of the busy 1916 season from the southwest. Oct 20, 1916 was dubbed "black Friday" because of shipwrecks caused by the decaying tropical system on Lake Erie. (d) The heavy snow of Oct 21, 1969 fell mainly between afternoon and midnight; the author has a clear memory of it as he was a student at the university where the weather station is located and spent that evening watching a movie. After an earlier rain-snow mix, the snow accumulated rapidly to the depth stated but quickly melted the next day despite ongoing cold temperatures (it stayed below 4 C all day). This event is marked as heaviest one-day snow for October although it is probable that a heavier amount fell in late October of 1844, the problem being as explained in a later note, the specific date(s) of this 30.2 cm snowfall are not specified. I am hoping that the dusty old manuscripts (which I last saw in a basement storage area in the old weather bureau headquarters around the same time as this 1969 snowstorm) from the 1840s are still preserved somewhere (now most likely to be at the newer Downsview headquarters building library) and might hold clues to this and other questions about snowfall in years from 1840 to 1844. Also on this date (Oct 21) no space to mention as a note above that the 1965 maximum daily rainfall was a cold core low that dropped steady rain for about two days (21st-22nd) amounting to 1.99" (50.5 mm). Also on October 21, 1868, 2.0" (5.1 cm) of snow mixed with some rain fell -- this is one of the heavier daily snowfalls in October so rather unfortunate to lose its place when so many other days had much smaller values. This snow was produced by a cold east to northeast flow around low pressure in WV. (e) Worth noting that on October 26, 2010, a very deep 955 mb low formed over the upper plains and Midwest. The effects of this storm, dubbed the "Chiclone" were moderate for Toronto with 0.25" (6.3 mm) rain and a high of 19.7 C reported. (f) 2-day snowfall total of 3.0" (7.6 cm) in 1865 as non-record 1.0" added to previous day's 2.0" amount. (g) Also note that 1925 snowfall 2d total was 4.0" (10.2 cm) 27th-28th. ... The 2015 rainfall which was largely on the 28th edged out a 1973 record which was part of a long-term heavy rainfall event that was widespread in the region. In the 1973 event, The 28th rainfall (1973) was 1.74" (43.9 mm) followed by 1.34" (34.0 mm), 0.51" (13.0 mm) and 0.71" (18.0 mm) from 29th to 31st. This gave a four-day total of 4.30" (108.9 mm). The cause was a very slow moving low that tracked from about WV to CT in the four day period. Temperatures were constantly around 7 C during this long interval of rainfall. (h) We have the report of 30.2 cm snow in October 1844 and it seems most likely to have fallen around 29th-30th when temperatures were cold enough, and deep low pressure was reported to have moved through New England giving Caswell a soaking rain at about 45 deg F. The distribution of this snowfall for Toronto on a day to day basis is not known. The listed records for 29th to 31st then are all to some extent possibly not the actual highest values. Neither would the monthly maximum of 4.8" (12.1 cm) on 21st, 1969, be likely to have exceeded the unknown 1844 maximum value. The map archives on wetterzentrale were just extended back through the period (to 1836 now), and this confirmed my suspicion that a low pressure system tracking to south of Great Lakes on 29th-30th probably brought most of this monthly total (some smaller parts could have occurred earlier). The 31st looks dry on the map. So the 30.2 cm snowfall was probably something like 20 cm on 29th and 10 cm on 30th in 1844. This explains why the morning of the 31st set the all-time minimum temperature (-9 C) for October. Would suggest anyone using the data assume the daily snowfall records are close to the values just mentioned. Unless almost all this snow fell on the 30th, or unless there were rainfalls associated (we have no rainfall data at all for the month), no daily precip record was likely to have occurred. I have noted the possible alternative snowfall records in the table (green alternative lines). (g) - second 29th note - Rainfall from remnants of H Sandy moving inland over NJ and tracking towards Toronto, on 29th in 2012, remnants reaching the Toronto area by early 31st. As there had been low pressure in the area since the 27th, this turned into a five day rainfall event that was not as heavy as in parts of the eastern U.S., but eventually totalled 61.9 mm or 2.44" -- no daily record was threatened with any of these five amounts.

The format follows the posts above (see preamble two posts back for general details) Since snowfall is limited in May, the max 2-day snow feature is now dropped until November. Every two-day total that is more than just an isolated one-day event can be inferred from the daily records. Two cases that are actual hidden two-day totals are explained in notes. This post will cover May, then June to August in parallel formats since there is only rainfall to track there (and rainfall = precip). This leaves some additional space for notes beside instead of below the text, and that space will be used to track two-day events and also some notable tropical system causes of the record rainfalls where known. In that format, for any given year, "H8" as an example means Hurricane number 8 but implies a post-tropical phase of that system by the time its remnants reach Toronto. After 1950 hurricanes are named so one might encounter for example "1957 H Audrey" (June 28 1957). In each case what is implied is that the circulation of the former hurricane or tropical storm reached the lower Great Lakes and created the rainfall that reached daily record status. You may be quite impressed with the number of cases that show up from August to October, the number in July and July will be relatively small. The author has checked a number of other rainfall events against archived maps (wetterzentrale 1836-2015) and makes a few notes of the types of systems that produced some of the non-tropical-remnant events. The main choices there are frontal wave (passing near or south of Toronto), warm front or cold front, or overhead closed low. Notes will only expand to space below the data tables where necessary for completion. Although every May precip record is now the daily rainfall record, that was not the case on May 1st until 2017 when a rainfall of 0.92" eclipsed the mark set in 1875 from a combined 0.60" rain and 3.0" snow (the largest in May) for 0.90" -- that had been ahead of the existing rainfall record of 0.81" from 1869. As a result, there is no need to list daily precip records for May, they are all the same as the daily rainfall records now. In no case did any of them augment any amount from combined snow although some had traces of snow or measured snow the following day. Leaving out the daily precip for May leaves space for June parallel to May. For June, no snow was reported except for traces on June 1, 1945 and June 3 and 4 of 1859. <<< May Daily Precip Records >>> - - - - - - - - - - - - - - - - - - - - - - - - - <<< June Daily Precip Records >>> DATE __ Max rain (precip)_year___Max snow___year __notes __________________ DATE _ Max rain and precip _ year __ notes May 01__0.92" (23.3 mm) 2017 ___3.0" (7.6 cm) 1875_________________________ Jun 01 __ 1.79" (45.5 mm) 2012 _ Tr snow 1945 May 02__1.55" (39.4 mm) 1992 ___0.6" (1.5 cm) 1909_2d sn 3.1" (7.8 cm) 1875 ___ Jun 02__ 1.20" (30.5 mm) 1947 _ (f) May 03__0.95" (24.2 mm) 1984 ___0.2" (0.5 cm) 1911___________________________Jun 03 __ 1.36" (34.5 mm) 1882 _ Tr snow 1859 May 04__1.50" (38.1 mm) 1871 ___1.5" (3.8 cm) 1907___________________________Jun 04 __ 0.89" (22.6 mm) 1869 _ Tr snow 1859 May 05__1.41" (35.8 mm) 1868 ___0.3" (0.8 cm) 1891___________________________Jun 05 __ 1.51" (38.4 mm) 1885 _ low south May 06__1.85" (47.0 mm) 1861 ___Trace (Tr cm) 1976,89 ______________________ Jun 06 __ 1.08" (27.4 mm) 1931 May 07__1.58" (40.1 mm) 1960 ___0.3" (0.8 cm) 1855___________________________Jun 07 __ 1.25" (31.7 mm) 2022* May 08__0.94" (23.9 mm) 1860 ___0.6" (1.5 cm) 1855_ 2d r 2.48" (63.0 mm) 1960 __Jun 08__1.61" (40.8 mm) 1906 May 09__1.09" (27.7 mm) 1956 ___1.3" (3.3 cm) 1923 (0.4" 1.0 cm 2020) _______Jun 09 __ 1.37" (34.8 mm) 1922 May 10__1.24" (31.5 mm) 1841 ___0.2" (0.5 cm) 1923 __________________________ Jun 10 __ 1.55" (39.4 mm) 1872 _ fr wave May 11__1.59" (40.4 mm) 1858 ___Trace (Tr cm) 1938, 2020 (2.8 cm YYZ) ______ Jun 11 __ 2.36" (59.9 mm) 1870 _ stat front s May 12__2.67" (67.8 mm) 2000 ___0.5" (1.2 cm) 1966 _ (a) ______________________Jun 12 __ 1.97" (50.1 mm) 2023^ May 13__2.22" (56.4 mm) 1868 ___0.1" (0.3 cm) 1912 _R 1868 deep low south ___ Jun 13 __ 1.63" (41.4 mm) 1996 _ (g) May 14__0.91" (23.2 mm) 1929 ___Trace (Tr cm) 1959, 2016 (North York) ______ Jun 14 __ 1.28" (32.5 mm) 1926 May 15__2.04" (51.8 mm) 1942 ___ 0.2" (0.5 cm) 1959 _R 1942 frontal trof ______ Jun 15 __ 1.80" (45.7 mm) 1879 _ warm front May 16__2.33" (59.2 mm) 1893 ___ 0.1" (0.3 cm) 1884 _R 1893 deep low s.e. ____ Jun 16 __ 1.45" (36.8 mm) 1922 May 17__2.20" (55.9 mm) 1865 ___ 0.0" (0.0 cm) (all) _ (b) ______________________ Jun 17 __ 1.35" (34.3 mm) 1937 May 18__1.63" (41.4 mm) 1904 ___Trace (Tr cm) 1976 __________________________ Jun 18 __ 1.71" (43.5 mm) 1934 _ cold front May 19__1.24" (31.5 mm) 1894 ___ Trace (Tr cm) 1907, 2000,02 ________________ Jun 19 __ 2.42" (61.5 mm) 1892 _ fr wave May 20__1.86" (47.2 mm) 1894 ___Trace (Tr cm) 1850, 1907 ____________________ Jun 20 __ 1.51" (38.4 mm) 1850 May 21__2.70" (68.6 mm) 1894 ___Trace (Tr cm) 1850 _ (c) _____________________ Jun 21 __ 1.09" (27.7 mm) 1851 May 22__2.06" (52.3 mm) 2001 ___ 0.0" (0.0 cm) all _ (d) _________________________Jun 22 __ 1.32" (33.5 mm) 1951 May 23__1.33" (33.8 mm) 2003 ___ Trace (Tr cm) 1917___________________________Jun 23 __ 1.50" (38.1 mm) 1908 _ (h) May 24__1.60" (40.6 mm) 1952 ___ Trace (Tr cm) 1925___________________________Jun 24 __ 1.24" (31.4 mm) 2000 May 25__2.06" (52.9 mm) 2017 ___ Trace (Tr cm) 1924___________________________Jun 25 __ 1.34" (34.1 mm) 2014 May 26__1.19" (30.2 mm) 1858 ___ 0.0" (0.0 cm) all _ (e) _________________________Jun 26 __ 0.93" (23.6 mm) 1869 May 27__1.29" (32.7 mm) 1866 ___ Trace (Tr cm) 1907___________________________Jun 27 __ 1.77" (44.9 mm) 2010 May 28__1.61" (40.9 mm) 2013 ___ Trace (Tr cm) 2021 (f) ________________________Jun 28 __ 2.50" (63.5 mm) 1957 _ H Audrey ( i ) May 29__1.10" (27.9 mm) 1916 ___ 0.0" (0.0 cm) all ______________________________Jun 29 __ 1.30" (33.0 mm) 1856 May 30__1.01" (25.7 mm) 1942 ___ Trace (Tr cm) 1856____________________________Jun 30 __ 2.00" (50.8 mm) 1870 stat front May 31__2.03" (51.5 mm) 1944 ___ 0.0" (0.0 cm) all _ (g) _________________________ _______________________ _________________________________________________________________________ __ * __ June 7, 2022 record rainfall replaced 1.07" (27.2 mm) 1967 __ ^ __ June 12, 2023 record rainfall replaced 1.53" (38.9 mm) 1840 Notes: (a) Severe urban flooding widespread in Michigan and Ontario from this system May 12, 2000. Local rainfalls up to 150 mm (6") reported. The cause was a slow-moving frontal wave separating warm, humid air to south from cool, moist air over Toronto to Lake Huron region. (b) Note applies to previous day (May 16) _ Another very heavy rainfall occurred in 1974 _ 2.31" (58.7 mm) and including previous day 2.56" (65.1 mm). This rainfall caused severe flooding on the Grand River in southwestern Ontario. Also note that while May 16th has the season's last measurable snowfall, May 17th is the first snow-free day with not even a trace amount in the records. The last trace of snow was June 4th in 1859. (c) The three-day record-breaking rainstorm May 19-21 1894 dropped 5.80" (147.3 mm) and is the only time that three consecutive days set rainfall records. The cause was a nearly stationary inverted trough feature over the mountains of PA and NY state with Toronto on the west side of the moisture-laden system. The first of the three records was approached in 1972 (1.20") and the second one in 1996 (1.75"). The third day of this wet spell set the daily record for May almost equalled in 2000 on May 12th. A similar three-day rainfall in September 1878 (11th-13th) of tropical origins dropped 4.83" (122.2 mm) in a similar progression but only the last of these days set a daily record. From September 13 to 15 of 1843, 5.18" (136.7 mm) fell but the first of these was only 0.20" (5.1 mm) so it was essentially a heavy two-day event and also the rainfall record was set in the middle of the three day interval in that case. These three rainstorms combined for almost as much rain as fell in all of the driest year (1874) as ranked previously. (d) May 21-22 2001 had a two day total of 3.08". (e) Although no snow trace was reported at Toronto downtown, on the early morning of May 26 1961 YYZ (Toronto airport) had several hours of mixed rain and snow that was reported as 0.2" (0.5 cm) (for some reason it appears on the 25th in the daily weather although both temps and hourly obs were only consistent with snow from 02-04h LST). This was the latest known measurable snowfall at any Toronto recording site until May 28, 2021. (f) Trace of snow at downtown location is based on video evidence of snow mixing with rain during the day, temp around 7-9 C, no accumulation on the ground ... but 0.2 cm reported at YYZ, their latest measurable snowfall ... amounts of 3-5 cm reported in some higher areas of southwestern and south central Ontario, highest being at around 500-600 meters a.s.l. south of Georgian Bay. (f) From May 29 to 31 of 1889, a total of 1.96" rain fell (49.8 mm). The heaviest daily amount was 24.1 mm (0.95") on the 30th. This was the heavy rain event that created the Johnstown PA flood disaster on May 31 when a dam broke and inundated the town and nearby valley, with a death toll of 2,200 or more. Also on May 31, in 1985, an F-3 tornado hit Barrie north of Toronto and resulted in eight fatalities. A line of thunderstorms swept through most of southern/central Ontario that afternoon and evening but the rainfall at Toronto was only 3.4 mm. Other strong tornadoes hit locations between Orangeville northwest of Toronto, to Peterborough northeast of Toronto. The author was living in Peterborough at that time and estimates about 30 mm of rain fell at his location, with large hail, the tornado track was further south (only an F-1 at that point). --- June notes --- (f) Until 2012 the June 2 (1947) rainfall record was the second consecutive one with 1.59" (40.4 mm) on June 1st (2d total 2.79" (70.9 mm). (g) While not setting a daily record, in 2000 this was the middle day of a three-day interval June 12-14 with 2.45" (62.2 mm) (h) June 22-23 1972 rainfall from remnants of H Agnes looping through NY-PA gave total of 1.36" (34.6 mm) (i) While Agnes and 1968 TS Candy (June 25-26 total of 0.99" or 25.2 mm) failed to set records, Audrey's remnants from the Gulf of Mexico set the monthly record. The track was from LA to w TN to central OH and dissipation of the tropical disturbance over Lake Ontario late 28th. With 0.29" on 27th and .01" on 29th, total rainfall for this event was 2.80" (early stages were probably frontal as Audrey ran up a weak frontal boundary already in place.) ... Also on 28th, 2.21" (56.1 mm) rain. ---------- =============================================== ---------- (note: any 2-day rainfalls mentioned in "notes" will start on the previous day and end on the day noted, unless otherwise specified ... also, refer to preamble to May-June section for information about other factors noted as causes of heavy rainfalls especially associated tropical systems. <<< July Daily Precip Records >>> - - - - - - -- - - - - - - <<< August Daily Precip Records >>> DATE _ Max rain (precip)_year___notes __________________ DATE _ Max rain and precip_year___notes July 01_1.30" (33.0 mm) 1842 ___________________________ Aug 01_1.44" (36.6 mm) 1969 July 02_0.98" (24.9 mm) 1890 _ 2d 2.14" (54.4 mm) _____ Aug 02_1.57" (39.8 mm) 2020 _ prev.1.35" (34.4 mm) 1991 July 03_0.97" (24.6 mm) 1928 ___________________________ Aug 03_3.09" (78.5 mm) 1915 _ H1 1915 (e) July 04_1.98" (50.3 mm) 1878 _ fr wave __________________Aug 04_3.45" (87.6 mm) 1878 _ warm front (f) July 05_1.36" (34.5 mm) 1971 ___________________________ Aug 05_1.49" (37.8 mm) 1870 _ 2d 2.81" (71.2 mm) in 1995 July 06_2.11" (53.6 mm) 1977 _2d 6-7 2.79" (70.9 mm) _(a) _ Aug 06_1.67" (42.4 mm) 1968 _ 2d 6th-7th 2.62" (66.5 mm) 1968 July 07_1.52" (38.5 mm) 2013 _2d 7-8 5.33" (135.3 mm)_(a) _ Aug 07_2.29" (58.2 mm) 2018 _ 2d 7th-8th 3.15" (80.1 mm) 2018 July 08_3.81" (96.8 mm) 2013 _ 2nd highest daily amt (any mo)_ Aug 08_3.22" (81.8 mm) 1939 _ warm front July 09_2.42" (61.5 mm) 1960 _ weak frontal trough _____ Aug 09_2.44" (62.0 mm) 1891 _ frontal wave July 10_1.37" (34.7 mm) 2006 ________________________ Aug 10_1.63" (41.4 mm) 1955 July 11_1.73" (43.9 mm) 1937 _________________________Aug 11_2.34" (58.4 mm) 1841 _ 2d 3.59" (90.2 mm) July 12_1.89" (48.0 mm) 1840 ________________________ Aug 12_2.15" (54.6 mm) 1866 _ stalled warm front July 13_1.59" (40.4 mm) 1972 _ (b) ____________________ Aug 13_2.51" (63.8 mm) 1955 _ H Connie July 14_1.27" (32.2 mm) 1996 ________________________ Aug 14_0.99" (25.2 mm) 1995 July 15_1.60" (40.6 mm) 1869 _ warm front ___________ Aug 15_3.68" (93.5 mm) 1905 _ fr wave south (g) July 16_2.45" (62.2 mm) 1941 _ wave on wf ___________ Aug 16_1.31" (33.2 mm) 1919 _ (h) July 17_2.75" (69.9 mm) 1850 _ also 2.35" (59.7 mm) 1866 __Aug 17_1.48" (37.6 mm) 1950 July 18_2.03" (51.6 mm) 1942 _ 2d 3.70" (94.0 mm) ____ Aug 18_1.23" (31.2 mm) 1841 July 19_2.41" (61.1 mm) 2007 _ frontal wave __________ Aug 19_1.25" (31.8 mm) 2005 July 20_1.69" (42.9 mm) 1952 _________________________ Aug 20_1.68" (42.7 mm) 1904 July 21_2.70" (68.6 mm) 1919 _ frontal wave __________ Aug 21_1.95" (49.5 mm) 1918 _ warm front July 22_1.64" (41.7 mm) 1840 ________________________ Aug 22_2.74" (69.6 mm) 1968 _ 2d 2.43" (61.6 mm) 2010 July 23_1.59" (40.4 mm) 1927 _ (c) ____________________ Aug 23_2.25" (57.2 mm) 1975 _ 2d 2.89" (73.9 mm) 1968 July 24_2.00" (50.8 mm) 1841 _ (d) ____________________ Aug 24_1.76" (44.8 mm) 1982 July 25_1.71" (43.4 mm) 1950 _________________________ Aug 25_1.06" (26.9 mm) 1892 _ 2d 1.94" (49.3 mm) 1892 July 26_2.03" (51.6 mm) 1849 _ 2d 2.41" (61.2 mm) 2009 __ Aug 26_2.17" (55.2 mm) 1986 July 27_3.88" (98.6 mm) 1897_heaviest calendar day rain (any mo) __ Aug 27_3.25" (82.6 mm) 1843 _ ( i ) July 28_1.49" (37.8 mm) 1981 _________________________ Aug 28_1.48" (37.6 mm) 1950 ___ July 29_1.86" (47.2 mm) 1852 _________________________ Aug 29_1.41" (35.8 mm) 1893 _ 2d 2.70" (68.6 mm) 1893 July 30_1.34" (34.0 mm) 1905 _________________________ Aug 30_2.39" (60.7 mm) 1970 _ 2d 2.96" (75.2 mm) 1970 July 31_1.78" (45.2 mm) 1977 _________________________ Aug 31_2.19" (55.6 mm) 1901 _ frontal wave south ______________________________________________________________ Notes: (a) Both heavy rainfalls July 6-7 in 1977 and 2013 had similar origins, slow-moving cold fronts in very warm, humid air masses. (b) Three day rainfall total of 3.65" (92.7 mm) 11th-13th 1964. Author was measuring rain at home weather station 40 km west in Georgetown, somewhat heavier totals there (unfortunately records lost in much later move). EC had station in Georgetown also, located about 4 km southeast of the author's home, and their report shows 78.0 mm while at YYZ (airport) in between (18 km west of Toronto downtown) the total was 76.7 mm. Checking the regional grid almost every location (and there used to be quite a few, several dozen) had 70 to 80 mm of rain in this downpour which was thundery but more or less continuous for about three days. The main cause of this prolonged heavy rain was an unseasonably well-defined low pressure area from Colorado that stalled out over the region. At Toronto the amount recorded on 13th was the daily record until 1972. Even this many years later I can still recall the shock value of seeing a five inch rain gauge very close to overflowing. It is worth mentioning though, that despite being in existence for 180 years, Toronto's weather station has never recorded more than 4.0 inches or 100 mm of rain (which is 3.94") in one calendar day ... Hurricane Hazel (Oct 15-16 1954) is known to have produced 6-8 inch rainfalls northwest of the city, and further afield there have been rainfalls in excess of that, so it seems quite likely that one day Toronto (either city or airport) will record a much heavier rainfall. (YYZ had 126.0 mm or 4.96" on July 8, 2013, the date of the downtown location's second heaviest one-day total of 3.81"). The author has had that experience, located 150 km north of Toronto in summer of 1976 there was a stationary thunderstorm complex that dropped over seven inches of rain in six hours -- the author recalls dashing out to empty the nearly full gauge (same one) with a measurement made, then adding the amount left over at the end of the storm. There's probably no reason why such a storm might not one day set up right over downtown Toronto. In the May 12, 2000 event (which was covered by The Weather Network from their studios southwest of Toronto) some local reports suggested amounts near six inches on that date (the record listed above being 2.67") . ... The heaviest one-day rainfall above (July 27, 1897) was closer to 60 mm at several other locations then reporting, so that one seems to have maximized close to the weather station location. (c) Similar amounts to this daily record (July 23, 1927) fell on 15th and 17th, the one on 15th was almost another daily max, the 17th was well behind and ended up in fifth place for the date. This is interesting only because it shows that very similar weather events can fare rather differently on various dates depending on what has to be largely random distribution (being that close together in time at a static point in the seasonal temperature trends). On the other hand, singularities that concern clusters of similar events on nearly similar dates could hold a research significance. For example, the January thaw concept -- about a half century ago, people often talked about the January thaw and expected it to come near the 21st of the month. Some research I have done suggests that this phenomenon has been slowly progressing forward and that it was closer to Jan 18-20 in the 19th century, and may be later than the 21st-24th as identified in the 20th century. The thaw was not something that would come every year but you can see a shift in distribution of temperature, more active storms and rainfalls. As to a cause for that, no very promising concepts other than difficult to quantify paradigms about oscillations in the Pacific, or possibly since the drift is similar long-term to the precession cycle, something of an undiagnosed Sun-background stars resonance that induces a planetary wave. (d) There was very heavy rainfall in the later part of July and early August of 1841. From July 22nd to 31st, a total of 5.15" (130.8 mm) fell, boosting the month to first place for July total rain after a rather average first two weeks. (that total swells to 6.77" starting from the 13th). Then after a dry week to start August 1841, another deluge of 4.59" fell from August 8th to 11th (total within 30 days of 11.36" or 288.5 mm) and after a few more dry days, 1.23" on Aug 18th made it 12.59" ( mm) in just 37 days (Noah had forty). These very heavy rainfalls showed up in 1842 and 1843 as well in somewhat different format and so it may be part of the background situation that led to the historical phenomenon where some residents of the Great Lakes region (perhaps more so on the U.S. side of the lakes) were widely anticipating the end of days and making plans to reach higher ground (the Millerite prophecy for 1843 and 1844). This movement rejected its prophecy in Oct 1844 and converted it to a new paradigm which led to the establishment of the Seventh Day Adventist church. --- August notes --- (e) The two-day rainfall from remnants of H1 (1915) which moved up from the Gulf of Mexico were 4.35" (110.5 mm) Aug 3-4, 1915 ... also, with the new record set previous day in 2020, the 2d total 2nd-3rd was 2.46" (62.6 mm) with an additional (non-record) 22.8 mm on 3rd. (f) The heavy warm frontal rain (August's 2nd highest one-day value) on Aug 4, 1878 added only a slight amount on 5th to reach 3.54" but then another 1.26" fell on Aug 6th making a three-day total of 4.80" (121.9 mm) That was another daily record until 1968 broke it. The two-day amount associated for 1968 (Aug 6-7), a warm front, produced a second record also on 7th (0.95" or 24.1 mm) which fell in 2018. (g) Also in 1986, 3.08" (78.2 mm) fell on Aug 15th, which would have set a record on all but two days in August. This combined with an earlier amount of 0.17" (4.4 mm) for a total 2d rain of 3.25" (82.6 mm); the 1905 record value had no additional amounts on either side and was almost the entire monthly rainfall for August 1905. (h) On Aug 16, 1969 (about a day before H Camille was approaching landfall in MS) air mass thunderstorms west of Toronto dropped amounts of 144 mm (about 5.6") near Milton and Hornby west of the airport and south of Georgetown which also had over 110 mm. The Toronto downtown station had only 0.38" (9.6 mm). Toronto airport had about 30 mm. These appeared to be non-frontal air mass storms that formed near lake breeze boundary and drifted upslope from east to west (the author was on holiday and missed this event by two days). Road damage from flash flooding was evident in the heavy rainfall zone at that time. (i) Aug 27 1992, (1.55") 39.4 mm associated with remnants of H Andrew (after second landfall in LA) failed to set a record. Another .34" (8.8 mm) fell on 28th. (total 1.89", 48.2 mm). Also from Aug 26 to 27 2013, 2.37" (60.0 mm) fell, with 39.4 mm on 27th tied with the 1992 value for second place on the day (after 1843). The 3.25" (82.6 mm) combined with 9.77" (248.2 mm) in September (Toronto's wettest month ever) made for a total of 13.02" (330.8 mm) in only 35 days, even wetter than the July-Aug 1841 period of similar length.

The format follows the post above (see preamble for general details) <<< March Daily Precip Records >>> DATE __ Max rain _____ year ___ Max snow ___ year __ Max precip __ year ____Max 2d snow (year) __ notes Mar 01__0.93" (23.9 mm) 1954 ___8.0" (20.3 cm) 1875__ 1.40" (35.6 mm) 1976 __17.8" (45.2 cm) 1900 _ (a) Mar 02__0.88" (22.4 mm) 1854 ___5.5" (14.0 cm) 1948__ 1.07" (27.2 mm) 1976 __ 9.5" (24.2 cm) 1976 _ (a) Mar 03__0.93" (23.9 mm) 1953 ___8.0" (20.3 cm) 1875__ 1.00" (25.4 mm) 1862 __ 8.0" (20.3 cm) 1875 _ (b) Mar 04__1.19" (30.2 mm) 1974 ___8.0" (20.4 cm) 1985*_ 1.54" (39.1 mm) 1985 __11.9" (30.0 cm) 1985 _ (c) Mar 05__0.68" (17.3 mm) 1899 ___8.9" (22.6 cm) 1917__ 0.94" (23.9 mm) 1851 __10.3" (26.2 cm) 2001 _ (d) Mar 06__1.44" (36.6 mm) 1900 ___8.0" (20.3 cm) 1943__ 1.44" (36.6 mm) 1900 __ 9.0" (22.9 cm) 1943 Mar 07__0.91" (23.0 mm) 2009 ___5.4" (13.7 cm) 1975__ 0.91" (23.0 mm) 2009 __ 9.1" (23.0 cm) 1923 _ (x) Mar 08__0.93" (23.6 mm) 1942,98_12.5" (31.8 cm) 1931__ 1.25" (31.8 mm) 1931 _12.5" (31.8 cm) 1931 _ (e) Mar 09__0.69" (17.5 mm) 1854 ___5.9" (15.0 cm) 1994__ 0.69" (17.5 mm) 1854 __15.5" (39.4 cm) 1931 Mar 10__0.99" (25.1 mm) 2011 __11.7" (29.7 cm) 1949__ 1.17" (29.7 mm) 1949 __12.0" (30.5 cm) 1949 Mar 11__1.06" (26.9 mm) 1936 ___7.9" (20.0 cm) 1941__ 1.15" (29.2 mm) 1871 __11.7" (29.7 cm) 1949 _ (f) Mar 12__1.18" (30.0 mm) 1977 ___8.6" (21.8 cm) 1968__ 1.18" (30.0 mm) 1977 __ 8.6" (21.8 cm) 1968 _ (g) Mar 13__0.85" (21.7 mm) 1852,2010 __9.0" (22.9 cm) 1870_ 1.03" (26.2 mm) 2010 _15.0" (38.1 cm) 1870 _ (h) Mar 14__0.94" (23.9 mm) 1973 ___6.6" (16.8 cm) 1951__ 0.94" (23.9 mm) 1973 __ 9.0" (22.9 cm) 1870 Mar 15__0.95" (24.1 mm) 1899 __10.0" (25.4 cm) 1870__ 1.05" (26.7 mm) 1862 __10.0" (25.4 cm) 1870 _ (i) Mar 16__1.45" (36.8 mm) 1942 __10.0" (25.4 cm) 1870__ 1.45" (36.8 mm) 1942 __20.0" (50.8 cm) 1870 Mar 17__0.96" (24.4 mm) 1919 __10.0" (25.4 cm) 1936__ 1.48" (37.6 mm) 1973 __13.0" (33.0 cm) 1936 _ (j) Mar 18__1.62" (41.1 mm) 1859 ___4.7" (11.9 cm) 1977__ 1.63" (41.3 mm) 1859 __10.0" (25.4 cm) 1936 Mar 19__1.72" (43.7 mm) 1881___8.5" (21.6 cm) 1883__ 1.72" (43.7 mm) 1881 __12.5" (31.8 cm) 1883 Mar 20__0.72" (18.3 mm) 1848, 1980 _9.0" (22.9 cm) 1862,76_0.90" (22.9 mm) 1862,76_9.0" (22.9 cm) 1862,76 (s) Mar 21__1.13" (28.7 mm) 1849 __15.0" (38.1 cm) 1867__ 1.50" (38.1 mm) 1867 __15.5" (39.4 cm) 1876 Mar 22__0.54" (13.7 mm) 1975 ___3.9" (9.9 cm) 2024^___ 0.50" (12.7 mm) 1949 __16.5" (41.9 cm) 1867 _ (x) Mar 23__0.75" (19.0 mm) 2022 __ 6.2" (15.8 cm) 1883__ 0.77" (19.5 mm) 2022 __ 6.4" (16.3 cm) 1883 _ (note) Mar 24__1.55" (39.4 mm) 1842 ___3.6" (9.2 cm) 1856___ 1.55" (39.4 mm) 1842 __ 6.2" (15.8 cm) 1883 Mar 25__0.95" (24.1 mm) 1930 ___4.8" (12.2 cm) 1955__ 1.40" (35.6 mm) 1930 __ 6.3" (16.1 cm) 1930 Mar 26__1.22" (30.9 mm) 1877 ___9.7" (24.6 cm) 1873__ 1.22" (30.9 mm) 1877 __11.7" (29.7 cm) 1873 Mar 27__0.90" (23.0 mm) 1991 __16.0" (40.6 cm) 1870__1.60" (40.6 mm) 1870 __19.5" (49.5 cm) 1870 _ 9.2" 2d sn1934 Mar 28__1.13" (28.7 mm) 1878 __10.5" (26.7 cm) 1876__ 1.13" (28.7 mm) 1878 __16.5" (41.9 cm) 1870 Mar 29__0.76" (19.4 mm) 2009*___5.7" (14.5 cm) 1876__ 0.76" (19.4 mm) 2009 __16.2" (41.2 cm) 1876 _ * (k) Mar 30__1.10" (27.9 mm) 2019 ___8.5" (21.6 cm) 1922__ 1.40" (35.6 mm) 1922 __ 8.5" (21.6 cm) 1922 _ (L) Mar 31__1.20" (30.5 mm) 1945 ___6.0" (15.2 cm) 1889__ 1.30" (33.0 mm) 1926 __ 9.6" (24.4 cm) 1987 _ (m) __________________________________________________________________________ Notes: (a) March 1st 1976 managed 35.6 mm precip from 17.8 cm snow. The previous mark was from 1954 when the rainfall record was set along with 4.1" snow for 1.34" of precip. Also on March 2nd, 6.4 cm of snow with 0.3 mm rain produced 27.2 mm precip for the daily record. This two-day storm was a prolonged mixture of snow, ice and snow pellets, sleet and some rain that changed to light rain in Toronto by 3rd but continued as heavy mixtures in central Ontario for several more days; when this melted in warmer weather mid-March 1976, there was extensive flooding. Another heavy mixture fell on March 1st 2007 (.52" rain, 4.2" snow, gave 1.17" precip). (b) The max precip on March 3rd came from a mixture of 0.70" rain and 3.0" snow (1.00" or 25.4 mm) in 1862. (c) The Mar 4 snowfall record of 20.4 cm (1985) converts to the same value (0.80") as the previous record measured in inches (1881 - 8.0"). The 1985 snowfall was accompanied by 8.1 mm rain, the total precip was 39.1 mm to ensure a daily record, by the previous 10:1 method the total would have been less than the 1974 rainfall. (d) The Mar 5 precip record came from a mixture of 0.64" (16.3 mm) rain and 3.0" (7.6 cm) snow in 1851. (e) The Mar 8 rainfall records from 1942 and 1998 both have same value despite different measurement systems in place (0.93" as measured in 1942 converts to 23.6 mm as measured in 1998). (f) The Mar 11 precip record was a combination of 1.05" rain (.01" under the eventual record) and 1.0" snow in 1871. (g) The Mar 12 max snowfall in 1968 continued briefly into 13th and amounted to 12.1" (30.7 cm) for a two-day total but that was not enough to displace the competing two-day value from 1870 on 13th. The amount on the 12th did displace the first day portion of that event which had been 6.0" (in 1870). (h) The 1852 record was measured as 0.85" which converts to 21.6 mm. The 2010 tie was measured at 21.7 mm which converts to 0.85" for the tie. The Tor A station normally used in winter months had more than this (26.2 mm) but was not selected for use in March 2010 because the month had zero snowfall. (i) Precip record on Mar 15 was achieved with 0.75" rain and 3.0" snow (1862). (j) Precip record on Mar 17 1973 from 0.94" (23.9 mm) rain and 5.4" (13.7 cm) snow. Rain from 16th of 0.59" (15 mm) made this a two-day rainfall of 1.53" (38.9 mm). This storm caused a major traffic accident north of Toronto in heavy snow squalls. (k) Rainfall record of 20.4 mm in 2009 ties in terms of imperial conversion to 0.80" (which converts to 20.3 mm) in 1902. This also applies to the max precip value for 29th. The 2009 rainfall was a two-day event 28th-29th totalling 32.6 mm (1.28"). Also, see note (x) added below, this event only shows up on 29th for Tor A which had 23.9 mm on 29th. This makes it appear that the "two-day event" from Tor B was all on the calendar date. So the record is either the 32.6 mm two-day total or the 23.9 mm one-day total from Tor A. By either station's measurement, the daily record was set in 2009. (L) The rainfall of 1.10" (2019) is the bulk of precip reported as 1.24" with a slight snow accumulation (being 2019 there was no direct snow measurement). Comparison to North York showed that snowfall was probably about 1-2" so the precip is arbitrarily divided into 1.10" rain and 1.4" snow. The previous record had been 0.85" rain in 1951. In any case the 2019 event was not max precip as the heavy snow on Mar 30, 1922 (8.5") combined with 0.55" rain for a total of 1.40". (m) The max precip from 1926 occurred when 1.00" of rain combined with 3.0" of snow. The 1987 snowfall event was a three-day total (March 30-April 1) of 11.2" (28.4 cm) -- this storm was the trailing edge of an even heavier snowstorm that hit parts of New England. (s) _ added later _ The maximum rainfall of 0.72" in 1848 was tied by conversion of 18.2 mm 1980, however, the metric conversion of 0.72" is 18.3 mm. (note Mar 23 _ rainfall record and precip record broken in 2022, mostly rain (19.0 mm) with 0.5 cm snow est in 19.5 mm precip, the previous records were Mar 23__0.49" (12.4 mm) 1926, 2010 and 0.62" (15.8 mm) 1883 (this from snowfall record). (x) An issue was noted after this table was completed. Station "Tor B" that includes daily temperatures and precip only (July 2003-end of data) has a report of only 17.9 mm for the same date (2009). This did not break the existing record of 0.77" (1868). My procedure has been to take any data available from Tor A since they had identified snowfall amounts. Tor A only reported during the snowfall season, so no overlap issues for most rainfall records, only Tor B was available for those months. ... All other 2003-2017 rainfall records are being cross-checked to see if they qualify from both locations. As noted below (April 6 note) Tor A also appears to be reporting amounts from 0800h to 0800h (with reports filed on date of that starting time) so there can be cases where part of a calendar day rain or snow is on the previous day's Tor A report. At this point I can see no way to disentangle the snowfall timing in the few cases where it might affect a record (and the two-day totals are more likely to be unaffected). But for the rainfall maxima that are subject to two reports, each one will receive a qualifying note similar to this one if there is any appreciable difference to the outcome. (Mar 22-23) _ Some doubt exists about the daily rainfall record from Tor A (0.57" 2010) as Tor B has only 3.0 mm on that date and 12.5 mm on 23rd (which ties 1926 for that daily record). This suggests the heavier Tor A rainfall fell largely after midnight. The record before 2010 for March 22nd was only 0.54" (13.7 mm) from 1975. On this basis that 1975 record is used for this summary. In most Marches from 2003 to 2017, Tor A was used for precip but because Tor A reported zero snowfall in March 2010, I went over to Tor B as I usually would do in April of other years. It is also worth noting that the rainfall records for Mar 22-23 are among the lowest of the entire calendar year. A few days in late January match them. (2022 rainfall increased 23rd record) ^ Mar 22 snowfall record 3.9" (9.9 cm) 2024 replaced 2.8" (7.1 cm) 1879 ... verified all snow by snow on ground report next day (10 cm) ... storm total 10.0 cm as 0.1 added at 0200 23rd. Despite confusion introduced 2003-17 by two different time intervals at two different locations, Toronto (city) is now back onto a calendar day or at least 06z to 06z regime for precip as well as temp. ========================================================= <<< April Daily Precip Records >>> DATE __ Max rain _____ year ___ Max snow ___ year __ Max precip __ year ____Max 2d snow (year) __ notes Apr 01__0.67" (16.9 mm) 2023 ___6.0" (15.2 cm) 1861__ 0.67" (16.9 mm) 2023 __ 7.8" (19.8 cm) 1987 Apr 02__0.94" (23.8 mm) 2005 ___5.3" (13.5 cm) 1975__ 1.36" (34.2 mm) 2005 __ 6.0" (15.2 cm) 1861 _ (a) Apr 03__2.35" (59.7 mm) 1850___4.1" (10.4 cm) 1975__ 2.35" (59.7 mm) 1850 __ 9.4" (23.9 cm) 1975 _ (a) (x) Apr 04__1.22" (31.0 mm) 1984 ___4.7" (12.0 cm) 1979__ 1.22" (31.0 mm) 1984 __ 5.4" (13.6 cm) 1996 Apr 05__1.82" (46.2 mm) 1929 ___8.0" (20.3 cm) 1852__ 1.82" (46.2 mm) 1929 __ 8.0" (20.3 cm) 1852 Apr 06__1.06" (26.9 mm) 2017 ___5.5" (14.0 cm) 1886__ 1.06" (26.9 mm) 2017 __ 8.5" (21.6 cm) 1852 _ (b) Apr 07__1.22" (31.0 mm) 1893 ___6.4" (16.3 cm) 1967__ 1.25" (31.7 mm) 1893 __ 7.4" (16.3 cm) 1886 Apr 08__1.52" (38.6 mm) 1991 ___7.5" (19.0 cm) 1979__ 1.52" (38.6 mm) 1991 __ 7.5" (19.0 cm) 1979 Apr 09__1.28" (32.5 mm) 1864 ___4.1" (10.5 cm) 1897__ 1.28" (32.5 mm) 1864 __ 9.1" (23.2 cm) 1979 Apr 10__1.15" (29.2 mm) 1859 ___7.0" (17.8 cm) 1943__ 1.15" (29.2 mm) 1859 __ 7.0" (17.8 cm) 1943 Apr 11__1.61" (40.9 mm) 1922 ___4.0" (10.2 cm) 1940,44_ 1.61" (40.9 mm) 1922__ 7.1" (18.1 cm) 1894,1943 Apr 12__1.84" (46.7 mm) 1951 ___4.7" (11.9 cm) 1932__ 1.84" (46.7 mm) 1951 __ 4.7" (11.9 cm) 1932 Apr 13__0.85" (21.6 mm) 1979 __ 1.5" (3.8 cm) 1864,1962_0.85" (21.6 mm) 1979__ 6.1" (15.5 cm) 1932 Apr 14__1.78" (45.2 mm) 1903 ___2.0" (5.1 cm) 2018 ___1.78" (45.2 mm) 1903 __ 2.0" (5.1 cm) 2018 _ (c) Apr 15__1.37" (34.8 mm) 1954 ___5.5" (14.0 cm) 1893__ 1.43" (36.1 mm) 2018 __ 5.5" (14.0 cm) 1893 _ (c) Apr 16__1.31" (33.4 mm) 1992*___3.4" (8.6 cm) 1943 ___1.31" (33.4 mm) 1992*__ 5.5" (14.0 cm) 1893 _ *(d) Apr 17__1.13" (28.7 mm) 1939 ___4.0" (10.2 cm) 1965__ 1.13" (28.7 mm) 1939 __ 4.0" (10.2 cm) 1965 Apr 18__1.49" (37.8 mm) 1869 ___2.0" (5.0 cm) 2022*___ 1.49" (37.8 mm) 1869 __ 4.0" (10.2 cm) 1965 _*(e) Apr 19__1.16" (29.3 mm) 1963 ___1.8" (4.6 cm) 1857___ 1.16" (29.3 mm) 1963 __ 1.8" ( 4.6 cm) 1857 Apr 20__1.82" (46.2 mm) 1893 ___8.3" (21.1 cm) 1901__ 1.82" (46.2 mm) 1893 __ 8.3" (21.1 cm) 1901 _ (f) Apr 21__1.56" (39.6 mm) 1862 ___4.7" (11.9 cm) 1928__ 1.56" (39.6 mm) 1862 __ 8.3" (21.1 cm) 1901 _ (f) Apr 22__1.12" (28.4 mm) 1977 ___3.5" (8.9 cm) 1867___ 1.12" (28.4 mm) 1977 __ 3.5" ( 8.9 cm) 1867 _ (g) Apr 23__1.08" (27.4 mm) 1866 ___3.0" (7.6 cm) 1963__ 1.08" (27.4 mm) 1866 __ 3.5" ( 8.9 cm) 1867 _ (h) Apr 24__0.86" (21.8 mm) 1886 ___1.3" ( 3.3 cm) 1875__ 0.86" (21.8 mm) 1886 __ 3.0" ( 7.6 cm) 1963 Apr 25__1.42" (36.1 mm) 1842 ___4.0" (10.2 cm) 1976__ 1.42" (36.1 mm) 1842 __ 4.0" (10.2 cm) 1976 _ (i) Apr 26__1.25" (31.8 mm) 1885 ___2.0" ( 5.1 cm) 1854__ 1.25" (31.8 mm) 1855 __ 4.0" (10.2 cm) 1976 Apr 27__1.03" (26.2 mm) 1871 ___0.8" ( 2.0 cm) 1966__ 1.03" (26.2 mm) 1871 __ 2.5" ( 6.4 cm) 1854 (2.2" 1966) Apr 28__1.60" (40.6 mm) 1866 ___0.8" ( 2.0 cm) 1885__ 1.60" (40.6 mm) 1866 __ 0.8" ( 2.0 cm) 1885,1966 Apr 29__1.26" (32.0 mm) 2014 ___3.4" ( 8.6 cm) 1909__ 1.26" (32.0 mm) 2014 __ 3.4" ( 8.6 cm) 1909 _ (j) Apr 30__1.31" (33.3 mm) 1845 ___2.5" ( 6.4 cm) 1908__ 1.31" (33.3 mm) 1845 __ 3.4" ( 8.6 cm) 1909 _ (k) _____________________________________________________________ Notes: (1st) _ 2023 broke records set in 1929, 0.62" rain and 0.63" prec (0.62R + 0.1S) (3rd) _ 2024 rainfall of 56.6 mm would have been a daily record on any other date in April, but fell short of the 1850 daily and April record of 59.7 mm. A 2d total of 64.2 mm 2nd-3rd was an April record. (a) The snowstorm of April 2-3, 1975 was much heavier in some areas north of Toronto where 60 to 80 cm fell over three days into April 4 (Toronto added 0.2" or 0.5 cm then). The storm had some intervals of rain and sleet in Toronto that did not occur further north, where very strong northwest winds during and after the storm drifted snow to considerable heights in Simcoe County and stranded road travelers in emergency shelters for up to five days. The author was living in that region during the storm and was confined to home as the nearby roads kept drifting over and with the strong April sun (after April 4) an arctic-like daily freeze-thaw cycle cemented snow drifts in place for up to ten days. This was definitely a "singularity" and while snowfall numbers in the 2005 event look similar, it had no similar impacts further north. The last of the storm's snow melted around April 19th in the region, ice persisted on local lakes to May 2nd then the entire month of May was hot and dry in contrast to the very cool April (see rankings). In 2005, the same two days produced a total of 19.4 cm along with 33.2 mm of rain, but the snow depths reported never changed from trace amounts. April 2, 2005 was as close as any other day (after Jan 1, 1932) came to setting both rain and snow records (ended up second in snowfall and first in rainfall). note also Apr 2 05 precip 29.8 mm from Tor B. (b) As noted earlier in study, two sets of precip records exist after 2003. The station identified as "Tor B" or Toronto City picked up the temperatures after July 2003. The other location "Tor A" (Toronto) continued to record only precip including rain and snow. This location only reported during the snowfall seasons from 2003-04 to 2016-17. Therefore the author has had to take rainfall data from Tor B for the summer half of the year. In the case of April 6, 2017, Tor B gives us 26.9 mm for a record amount. Tor A provides a similar 2d total of 27.8 mm but most of it is shown on April 5. This leads me to conclude that Tor A measurements took place around 0800h while Tor B runs a calendar day measurement. Also the fairly close Toronto airport (YYZ) location has all of this rainfall event on April 6 (27.8 mm + 0.4 cm snow) and they certainly report their measurements to calendar days. (c) Snowfall April 14-16 2018 during a prolonged spell of mixed precipitation (also rain, sleet, ice pellets) is estimated from snow depth shown as 4 cm by morning 15th and 5 cm morning 16th then 4 cm morning 17th (only Tor A reports exist by this time, Tor B ceased its reports after winter 2016-17). Another clue is reported snowfalls at North York which are 7.6 cm (14th) and 3.2 cm (15th). Snow depths were given as 7 cm after each day. Similar precip values are also reported. Further out of the city, the YYZ location reported 4.2 cm and 3.8 cm with less overall precip (influence of Lake Ontario evident). The author also knows of some weather forum reports supporting 5-10 cm amounts on these dates. Otherwise, the daily record for April 14 would be 1.1" from 2014. The record for the 15th (1893 5.5") was not challenged. Over three days (April 14-16) a total of 89.3 mm precip fell. The precip record for the 15th (1.43") had estimated components of 1.23" rain and 2.0" snow. This edged out the all-rain value from 1954 of 1.37". (d) The maximum rainfall in 1992 (33.4 mm) converted to the measured value of 1.31" also posted on Apr 16th in 1919. That however converts to 33.3 mm in metric, so it's a case of a statistical tie for the imperial measurement. This also applies to the precip as neither of these days had any accompanying snowfall. Also of note on April 16, a second place two-day snowfall of 3.5" from both 1904 and 1947. (e) New daily record 2022 is from estimated value comparing to results measured at YYZ. The actual amount could have been in the range of 5-15 cm and after melting snow on ground was not persistent to next morning (the snow occurred during the evening with temperatures near 1 C). The previous record is 1.5" (3.8 cm) 1947. (f) The heavy snowfall event on Apr 20 1901 was accompanied by heavy rainfall, 0.56" fell on 20th and 0.90" more on Apr 21. The cause was a nearly stationary stacked low in the mid-Atlantic states. No further snow fell but it rained less heavily for three more days before clearing up. The maximum temperature reported on 20th was 38 F (3.3 C), somewhat milder air worked its way into the easterly flow by the next day (52 F). The precip for the day (20th) of 1.39" might have been reported as a heavier amount in the modern protocols but fell short of the all-rain value of 1.82" (1893). ... A snowfall of 1.5" (3.8 cm) on 20th in 1857 completed a two-day value of 3.3" (8.5 cm) that was eclipsed by this one-day snowfall event. The next day, the snowfall record from 1928 was nearly matched by 4.3" on 21st in 1945. (g) A further 0.80" (20.3 mm) rain on Apr 23 1977 brought the two-day total to 1.92" (48.8 mm). (h) Two day rainfall of 1.83" (46.5 mm) in 1847, on 22nd .76" was the maximum until broken by 1977 and on 23rd the amount was 1.07" just .01" below the record value in 1866. (i) The snowfall of 4.0" (10.2 cm) on Apr 25, 1976 was as heavy as 20 cm further north (part of this event at Toronto was rainfall of 0.56" (14.2 mm) on 24th and 0.20" (5.1 mm) on 25th. Precip on 25th was consistent with 10:1 ratios and snow depth reported next morning was 5 cms. As it had turned very warm a week earlier (record highs on several days 16th-19th) deciduous trees had come out into full spring foliage and the heavy wet snow caused many large branches to fall off. It had been near 80 deg F for several days a week earlier. Tree foliation was very rapid in both April 1976 and 1977. By contrast, in both 1966 and 1967 full spring foliation was not observed until late May. (j) Maximum rainfall for Apr 29, 2014 is from Tor B as Tor A had stopped reporting for the winter season two weeks earlier anyway. This new record only edged out 1.16" from 1921 previous record. This will be the last note about rainfalls 2003-2017 until we reach the November records when the two-station situation comes into play again. The practice of terminating the Tor A reports in April means that any snow that might have fallen in May (and same applies to October) can only be deduced indirectly from other local reports. See the May summary for any findings, the monthly precip values all show zero snowfall for May after 2001's trace amount. (k) Another significant snowfall on Apr 30 was 2.0" (5.1 cm) in 1963 which combined with 0.64" rain. This snow continued into May 1st when another 0.7" was recorded (2.7" total but 3.0" fell on May 1, 1875). (x) A separate precip issue for April 3 arises from unusual readings of a relatively small snowfall of 10 cm reported as 40 mm of precip at the newly established (July 2002) parallel "Tor B" station Toronto City (at that time the "Tor A" station continuing on from the longer data set under the name Toronto still had temperature data, slightly at variance with the data shown for Tor B although that too could be partly due to a time of observation issue. The Tor B station has only precip at this point and shows 22.2 mm on 3rd, 13.5 mm on 4th with 6 cm new snow on ground. This leads me to conclude that the heavy sleety snowfall event with the large additional (non-rain-reported) precip was overnight to some extent. In any case, the month's heaviest rainfall (Apr 3, 1850) prevented even the inflated 40 mm precip amount from qualifying as max precip although it might have done so on about half the days in April. ... In part because I also find this very confusing, this is the sequence of events established by the gradual change of observing practices at the general location of the Toronto downtown weather station. (1) mid-2002 : a second location (Toronto City) begins a parallel set of obs with temps and precip but no snowfall. ... I also refer to this location as Tor B. (2) Toronto (the station with data since 1840) continued its full reporting to June 2003. This is "Tor A" in any discussions in these notes. Tor A (Toronto) then dropped temperatures and snowfall which from that point on (July 1, 2003) only appeared with Toronto City (what I also call Tor B). (3) Tor A finally went silent entirely after winter 2016-17, and reported only during the snowfall months from 2003 to 2017. (4) Tor A changed their observation day some time around the split, if not before (an issue I hope to resolve with EC) to what appears to be 0800h-0800h so that if any rainfall event continues overnight, almost all of it falls into one day's report, whereas Tor B reports closer to a calendar day format (could be 0100-2400 local hourlies combined). (5) All of the rainfall records since 2003 are either from Tor A records where snow daily measurements were active, otherwise Tor B (Toronto City) . I considered the issue of having calendar day records for precip but could not be sure that calendar day had been the standard before 2003 for various intervals (including much of the deeper historical record). It is believed by the author that some if not most of the pre-2003 Toronto data were calendar day records but there was probably more adherence to this around the 1940s to 1960s than at other times (because at those times Toronto was a first-order reporting station with more frequent observer measurements) . By calendar day there could be routines such as 0100-2400 local hourly obs, midnight to midnight or 06z to 06z (Toronto is in the eastern time zone, in standard time 06z is 0100h local, in EDST it is 0200h local). These details would not skew the comparison of daily values very much but stretching the day to 0800h does make it "apples and oranges" to the extent that it matters to the non-purist. TOR A (identified as Toronto with navigation available to 1840) ceased operation April 27, 2017 and did not reappear in winter 2017-18 or thereafter. TOR B (identified as Toronto City) continued to the present and can be scrolled back to mid-2002 when it appeared as a full alternative to the existing Toronto. I have only used it since Tor A appeared in mid-2003. As an example of how these two locations display two different reporting days near the end of their overlap, on April 19-20, an apparently overnight rainfall event shows up this way: Date ____________ Tor A ___ Tor B ___ YYZ ____ North York Apr 19 2017 _____19.6 _____ 1.2 _____ 0.6 ______ 0.4 Apr 20 2017 _____ 5.4 _____ 23.3 _____25.0 _____18.4 From that example, one can see that Tor A (the snowfall-precip only alternative) is recording amounts during the next calendar day while Tor B and YYZ are recording totals around midnight. I added North York which is apparently also a "calendar day" reporting station. Currently some work is underway to ensure that daily rainfall records are always from Tor B during the overlap, and some consideration is being given to adjusting calendar day snowfalls which from 2003 to 2017 are shifted into the overnight reporting mode. An issue yet to be addressed is whether any parts of the 1840 to 2003 reporting were similarly offset. (note: often in April and sometimes in either Oct or Nov, one snowfall is preserved from Tor A which has an incomplete monthly log and the procedure here was to take the Tor B precip and change the appropriate portion to snow on a 10:1 basis or by some blending of the data if a different liquid equivalent seemed to be confirmed from the partial Tor A records. Some further small (usually trace) snowfalls were detected from comparison with North York nearby).

Daily Precipitation Records 1840 to 2023 (and Jan 9 2024) In the table, record values are listed by both imperial and metric amounts. The system used for measurement was imperial (inches) to 1978 and metric from (June 1) 1978 to present. The conversions from imperial are to nearest 0.1 mm or cm, the conversions from metric to inches are to nearest .01" (or 0.1" of snow). It would be possible for two measurements to tie from different systems but when this did occur in the data, close contenders were usually separated by some amount (see note b for Jan 26 below). There are a few tied values obtained from the same system of measurement though. There was one tied value even after conversions (Feb 7 snowfall measured as 8.0" in 1861 and 20.3 cm in 2013 could not be separated by conversion). After the daily (calendar day) records, a maximum 2-day snowfall is listed. This is done because a lot of snow events in the region occur overnight and are divided into two daily reports. The protocol is that the total amount shown as a 2-day maximum ends on the date listed. For example, the 9.1" of snow (1887) for Jan 1st below began on Dec 31, 1886. There are cases where the 2-day maximum is also the one-day maximum for the same date, and also cases where the second day total includes no further snowfall on that date, and more numerous examples of very small second-day amounts. An example of that can be seen with the snowfall on Jan 12, 1999 which continues to set a 2-day mark on 13th despite only slight additional snow . The changes of 2-day totals will sometimes reveal that a storm or at least a related snow interval was centered on one day and had additional amounts on both days adjacent. In the case of the latter snowfall, more additional snow had fallen on the 11th so the 2-day value on 12th was greater than the next day. The "notes" section will become busier in the summer and autumn rainfall records as any known links to tropical storms or other well-known events are listed. Some other information will appear under "notes" including, where space permits, some two-day rainfall totals (this will not be a rigorous log of two-day rainfall extremes however). Maximum precipitation is usually either the same day's maximum rainfall or snowfall event, or some combination of rain and snow involving one of them. About 80% of heavy mid-winter snowfalls have no associated rain or sleet, but with the other 20% there can be either small amounts or major mixed falls. Also most of the heavier rainfalls in the winter months occur in mild enough temperatures that they terminate without snow, but it is fairly common for a small additional amount of snow to fall at either end of the rainfall, usually the end portion. See the slight top-up of precip from rain on Jan 16, 1924 as an example of that. As it happens, the first entry (Jan 1, 1932) contains record rainfall and snowfall on the same date. This only happened once again in the data on Nov 6, 1951 (with both records set on same date). However, it is possible for an unrelated (to rain or snow maxima dates) to achieve maximum precipitation. This can happen if (a) enough rain and snow fall to surpass the precip value of the maximum rain or snow even where augmented by the other type, or (b) after 1962 if the snowfall liquid equivalent is either less than some rainfall value, or more than it, despite a straight 10:1 conversion not qualifying as max precipitation which would always be the case 1843 to 1962. Although the max precip for Jan 2nd below was from the record snowfall, it was larger with the liquid equivalent than would have been the case pre-1962, there was 1.0 mm rain added to the 38.0 cm snowfall and the precip was given as 52.0mm meaning that the 38.0 cm snow had l.e. of 51.0 mm. Pre-1962 this would have been recorded as 39.0 mm precip although it has occurred to me that observers back in that era may have derived some snowfalls from melted equivalents after the fact, so the distinction is not as obvious as at first glance. As a hypothetical of what that means, an observer might have been confronted with a large, somewhat melted snowfall, and decided to call the snowfall by a 10:1 ratio of melted precipitation, separating out an estimate for rainfall within the storm. I have the feeling that there was a practice of estimation to some extent because a larger than random portion of snowfalls (in particular before 1900) are either full inches or half inches rather than a spectrum of amounts ending in all tenths of an inch, which seemed to become the case later on (perhaps as observing procedures either improved or were more organized by time and employment -- the site was a first-order weather station for many years up to around 1969 and continued to be run quite rigorously after that, but as to measurement routines in the early part of the record, we have only the indirect clue of the number of events with measurements of whole inches, something that does not seem to occur with rainfall measurements). The author has first-hand experience with difficulties of separating out amounts of rain and snow in heavy mixed storms, for one thing, you tend to get rapid compaction from falling sleet or pellets, and also, the rain gauge can become iced over to some extent requiring frequent maintenance. Whether this was always done in the 19th century remains an unknown. Caswell's Providence Rhode Island record seems to indicate both understanding of these issues, and a diligent attitude towards managing them. The first case of a different date for max precip than either rain or snow was Jan 27 for 1967 (see below). Although neither rain nor snow daily records were broken, there was also sleet in this storm (the famous Chicago blizzard of Jan 26-27) and thus with the new measurement protocols introduced in 1962, the daily report is 0.44" rain, 3.8" snow and 1.59" precip. Two other occasions with similar outcomes were March 1-2 1976 and Apr 2-3 2003. Cases where the maximum daily precip comes from a combination of two non-record rainfall and snowfall amounts are shown in green. Cases where the maximum daily precip remains a value that is preserved due to a smaller than 10:1 snowfall conversion of a new snowfall record or value since 1963 (as for example Jan 28th below) are shown in red. The snowfall record providing this value was broken but not by enough to bring the lower liquid equivalent to a higher value. In theory the older record could have been the still-extant daily rainfall record. Cases where the maximum precip value is an augmented amount of either the record rain or snow are not highlighted and can be deduced from comparing the record value(s) associated. An issue regarding timing of amounts at two stations in operation 2003 to 2017 was unearthed during this stage as reported in the March-April section below. Notes have now been added to clarify status of rainfall records shown in Jan and Feb in the following table ... these notes are labelled (x) and appear after the other notes already shown. See above in the first precip table posted a longer discussion of this subject. (Tor A is the resumed and reduced version of Toronto 1840-2003, which only operated in winter months to record daily snowfalls along with rainfalls. ... ... Tor B is the new "Toronto City" site that began parallel to Toronto in 2002 and took over temperatures with daily precip July 2003. In general terms, from 2003 to 2017 Tor A was used November to March, Tor B was used April to October, but in some cases parts of the April and October data involving snow came from Tor A which then might have closed or opened at mid-month -- a blended record is required for these few cases). Monthly maximum values in each category are identified by bold type (e.g. rainfall for Jan 31, 1843, snowfall Jan 23, 1966). <<< January Daily Precip Records >>> DATE __ Max rain _____ year ___ Max snow ___ year ___ Max precip ___ year___ Max 2d snow (year) __ notes Jan 01__1.16" (29.5 mm) 1932 ___9.0" (22.9 cm) 1932__ 2.06" (52.3 mm) 1932 __ 9.1" (23.1 cm) 1887 Jan 02__1.00" (25.4 mm) 1870 __14.9" (38.0 cm) 1999__ 2.05" (52.0 mm) 1999 __14.9" (38.0 cm) 1999 _ also 2d s 13.0" (1932) Jan 03__0.95" (24.1 mm) 1907 ___6.2" (15.7 cm) 1924__ 0.95" (24.1 mm) 1907 __15.1" (38.4 cm) 1999 Jan 04__1.30" (33.0 mm) 1886 ___4.0" (10.2 cm) 1952__ 1.30" (33.0 mm) 1886 __ 7.2" (18.3 cm) 1924 _ also 1.22" (31.0 mm) r 1993 Jan 05__1.20" (30.5 mm) 1929 ___7.4" (18.8 cm) 1874__ 1.20" (30.5 mm) 1929 __ 7.4" (18.8 cm) 1874 Jan 06__1.90" (48.3 mm) 1841 ___7.5" (19.1 cm) 1950__ 1.90" (48.3 mm) 1841 __ 7.5" (19.1 cm) 1950 Jan 07__1.03" (26.2 mm) 1998 ___6.6" (16.8 cm) 1905__ 1.03" (26.2 mm) 1998 __10.2" (25.9 cm) 1905 Jan 08__1.37" (34.8 mm) 1935 __11.1" (28.2 cm) 1884__ 1.37" (34.8 mm) 1935 __11.1" (28.2 cm) 1884 Jan 09__1.11" (28.2 mm) 2024^___8.0" (20.3 cm) 1887__ 1.23" (31.2 mm) 2024^__15.7" (39.9 cm) 1884 Jan 10__0.94" (23.9 mm) 1843 ___7.0" (17.8 cm) 1865__ 0.94" (23.9 mm) 1843 __11.5" (29.2 cm) 1977 Jan 11__2.18" (55.3 mm) 2020 ___7.5" (19.1 cm) 1923__ 2.18" (55.3 mm) 2020 __ 7.5" (19.1 cm) 1923 Jan 12__1.42" (36.1 mm) 1844 ___8.3" (21.0 cm) 1999__ 1.42" (36.1 mm) 1844 __11.9" (30.4 cm) 1884 __ 2d r 68.1mm 2020 Jan 13__1.67" (42.4 mm) 1937 ___5.4" (13.7 cm) 1976__ 1.67" (42.4 mm) 1937 __ 8.5" (21.6 cm) 1999 Jan 14__1.33" (33.8 mm) 1899 __10.5" (26.6 cm) 1999__ 1.33" (33.8 mm) 1899 __10.7" (27.2 cm) 1999 __ also r 1.22" 30mm 1968** Jan 15__1.76" (44.8 mm) 1995 __11.5" (29.2 cm) 1968__ 1.76" (44.8 mm) 1968 __11.5" (21.6 cm) 1968 __ snow depth 65 cm 1999 Jan 16__1.00" (25.4 mm) 1924 __10.0" (25.4 cm) 1920__ 1.06" (26.9 mm) 1924 __11.5" (21.6 cm) 1968 Jan 17__1.30" (33.0 mm) 2006 __ 14.2" (36.2 cm) 2022 _ 1.42" (36.2 mm) 2022 __15.5" (39.3 cm) 2022 _ (x) (a) Jan 18__1.36" (34.5 mm) 1929 __10.5" (26.7 cm) 1895__ 1.36" (34.5 mm) 1929 __14.5" (37.0 cm) 202210.5" (a) Jan 19__0.65" (16.5 mm) 1933 __10.0" (25.4 cm) 1864__ 1.00" (25.4 mm) 1864 __14.0" (35.6 cm) 1864 Jan 20__1.25" (31.8 mm) 1842 __15.0" (38.1 cm) 1867__ 1.25" (31.8 mm) 1842 __15.0" (38.1 cm) 1867 Jan 21__0.53" (13.5 mm) 1895,1993 _6.3" (16.0 cm) 1881_ 0.88" (22.4 mm) 2010 _18.0" (45.7 cm) 1867 _ (x) Jan 22__1.06" (26.9 mm) 1957 __13.2" (33.5 cm) 1902__ 1.46" (37.1 mm) 1957 __15.7" (39.9 cm) 1902 Jan 23__0.76" (19.3 mm) 1898 __15.7" (39.9 cm) 1966__ 1.54" (39.1 mm) 1966 __16.6" (42.2 cm) 1966 Jan 24__1.65" (41.8 mm) 1979 __15.3" (38.9 cm) 1873__ 1.92" (48.8 mm) 1979 __19.5" (49.5 cm) 1873 _ (note b) Jan 25__0.58" (14.7 mm) 1964 ___7.0" (17.8 cm) 1855__ 0.70" (14.7 mm) 1964 __15.3" (38.9 cm) 1873 _ (x) Jan 26__0.82" (20.8 mm) 1849 ___8.0" (20.3 cm) 1895__ 0.82" (20.8 mm) 1849 __11.3" (28.7 cm) 1895 _ (note c) Jan 27__0.76" (19.3 mm) 1994 ___7.6" (19.3 cm) 2004__ 1.59" (40.4 mm) 1967 __11.6" (29.4 cm) 2004 Jan 28__0.44" (11.2 mm) 1975 ___7.9" (20.0 cm) 2019__ 0.60" (15.2 mm) 1871 __ 8.7" (22.1 cm) 1889 _ (note d) Jan 29__0.87" (22.0 mm) 2013 ___6.1" (15.5 cm) 1947__ 0.87" (22.0 mm) 2013 __ 8.3" (21.1 cm) 1947 _ (x) Jan 30__0.64" (16.3 mm) 1969 ___7.5" (19.1 cm) 1956__ 0.75" (19.1 mm) 1956 __ 8.1" (20.6 cm) 1947 Jan 31__2.50" (63.5 mm) 1843___7.1" (17.0 cm) 1982__2.50" (63.5 mm) 1843__12.5" (31.8 cm) 1852 ______________________________ ^ Previous records: rainfall 0.70" (17.8 mm) 1964 and precip 0.80" (20.3 mm) 1887 (from 20.3 cm snowfall record) ** Storm of Jan 14-15 1968 was freezing rain on 14th, heavy snow on 15th, considerable damage done to trees in the vicinity of the Toronto city weather office and the University of Toronto closed for a week due to power outages. (a) Jan 17 2022 snowstorm broke these records _ daily 6.0" (15.2 cm) 1883, and 2d total snow 10.8" (27.4 cm) 1920. It also broke the 2d total for 17-18 which was previously 26.7 cm 1895. (b) Jan 24 1896 also had a heavy mixed fall of 1.18" (30.0 mm) rain, 5.2" (13.2 cm) snow, 1.70" (43.2 mm) precip. (c) Jan 26 1996 tied rainfall in terms of 20.6 mm vs 20.8 mm in 1849 but conversion was 0.81" vs 0.82". Same applies to the precip value associated. (d) The snowfall record is estimated from snow depth increase of 20 cm similar to other Toronto area reports -- the daily precip was 13.0 mm so the previous snowfall record's precip value (15.2 mm from 1871) continued to be the highest daily precip value. It should be noted in general that snowfalls were not assigned to dates in Jan 1843 (we do have the totals available) so that daily rainfall records on two occasions might have included some snow. The storm on Jan 31, 1843 was a very deep low that produced blizzard conditions in the Midwest and upper Great Lakes regions and strong winds along the U.S. northeast coast. There was a report of some snow with the heavy rain at Albany NY in a newspaper account. (x) 17th _ previous note: The timing issue does not affect this rainfall record substantially. The value is from the Tor A site. The Tor B site reported 23.8 mm plus 9.1 mm the next calendar day. It would appear that the Tor A amount of 33.0 mm may include that second portion but the author suspects that before 2003 the same observing protocols extending rainfall amounts to around 0700h next day were in place, so the data are at least comparable. The previous record of 0.58" (14.7 mm) was in 1929. ... The 2006 precip record was broken by the value recorded in the 2022 snowstorm now shown as the record. (x) For the Jan 29 2013 record, that one is preserved from Tor A data as the Tor B numbers while slightly smaller do not fall below the previous record nor do they suggest a timing issue. On Jan 21 2010 a record amount (22.4 mm) only appears in Tor A data, the event is not marked missing in Tor B but precip is zero. As YYZ , North York and City Centre (Island airport) also had zero and maps indicate no weather systems, this is regarded as spurious data and eliminated from my tables. However the reverse situation applies to Jan 24-25 with substantial rainfalls at the other locations and zero at Tor A. Therefore the totals are preserved and the same amount is shown on those dates instead, pro-rated as to amounts on each day by the same proportions as the nearby stations. It is possible that the record for 25th was broken in 2010 but as the amounts pro-rated were greater on 24th, the assigned amount falls short of the record there. This was the only apparent data entry error spotted in my exhaustive study other than one minor glitch with a November rain-snow combination discussed under November. --------------------------------------------------------------------- <<< February Daily Precip Records >>> DATE __ Max rain _____ year ___ Max snow ___ year ___ Max precip ___ year___ Max 2d snow (year) __ notes Feb 01__1.08" (27.4 mm) 1968 ___9.8" (24.9 cm) 1908__ 1.08" (27.4 mm) 1968 __10.0" (25.4 cm) 1908 _ (a) Feb 02__1.57" (39.9 mm) 1842 ___6.6" (16.8 cm) 1967__ 1.57" (39.9 mm) 1842 __ 9.8" (24.9 cm) 1908 Feb 03__0.85" (21.6 mm) 1952 ___9.5" (24.1 cm) 1910__ 1.15" (29.2 mm) 1883 __14.5" (36.8 cm) 1910 _ (b) Feb 04__1.12" (28.4 mm) 2006 ___6.0" (15.2 cm) 1932__ 1.28" (32.4 mm) 2006 __ 9.6" (24.4 cm) 1910 _ (c)(x) Feb 05__1.01" (25.8 mm) 1938 __16.0" (40.6 cm) 1863__ 1.60" (40.6 mm) 1863 __17.0" (43.2 cm) 1863 Feb 06__1.44" (36.6 mm) 1897 __10.9" (27.7 cm) 1911__ 1.44" (36.6 mm) 1897 __18.0" (45.7 cm) 1863 _ 1843 psbl 20-30 cm snow Feb 07__0.61" (15.4 mm) 2017 ___8.0" (20.3 cm) 1861*_ 0.81" (20.6 mm) 1933 __11.2" (28.4 cm) 1887 _ (d) (x) Feb 08__1.02" (26.0 mm) 2001 ___7.0" (17.8 cm) 1903__ 1.55" (39.4 mm) 2001 __14.4" (36.5 cm) 2013 Feb 09__1.11" (28.1 mm) 2023 ___7.0" (17.8 cm) 1896__ 1.11" (28.1 mm) 2023 __ 7.1" (18.0 cm) 1903 _ (e) Feb 10__1.14" (29.0 mm) 1943 ___5.7" (14.5 cm) 1959__ 1.15" (29.2 mm) 1981 __ 7.5" (19.1 cm) 1896 _ (f) Feb 11__1.45" (36.8 mm) 2009 ___8.4" (21.4 cm) 1988__ 1.45" (36.8 mm) 2009 __ 8.6" (22.0 cm) 1988 _ (g) Feb 12__0.74" (18.8 mm) 1918 ___7.0" (17.8 cm) 2008__ 0.82" (20.9 mm) 2019 __ 9.8" (25.0 cm) 1988 _ (h) Feb 13__1.71" (43.4 mm) 1855___8.0" (20.3 cm) 1950__ 1.71" (43.4 mm) 1855 __ 8.2" (20.8 cm) 1894 Feb 14__0.80" (20.3 mm) 1949 __18.0" (45.7 cm) 1850__1.80" (45.7 mm) 1850 __18.0" (45.7 cm) 1850 Feb 15__1.62" (41.1 mm) 1857 __10.0" (25.4 cm) 1846__ 1.62" (41.1 mm) 1857 __18.0" (45.7 cm) 1850 Feb 16__0.74" (18.8 mm) 2006 ___9.3" (23.6 cm) 1954__ 1.21" (30.7 mm) 1954 __12.0" (30.5 cm) 1846 _ (x) Feb 17__0.94" (23.8 mm) 1998 __12.0" (30.5 cm) 1871__ 1.41" (35.8 mm) 2022 __12.1" (30.7 cm) 1871 _note Feb 18__0.60" (15.2 mm) 1842 ___9.0" (22.9 cm) 1860__ 0.90" (22.9 mm) 1860 __13.0" (33.0 cm) 1871 Feb 19__0.96" (24.4 mm) 1939 ___8.0" (20.3 cm) 1862__ 1.10" (27.9 mm) 1939 __ 9.0" (22.9 cm) 1860 Feb 20__0.90" (23.0 mm) 2014 __18.0" (45.7 cm) 1846__1.80" (45.7 mm) 1846 __18.0" (45.7 cm) 1846 _ (x) Feb 21__0.80" (20.3 mm) 1976* __11.0" (27.9 cm) 1950__1.10" (27.9 mm) 1950 __22.0" (55.9 cm) 1846 _ * (i) Feb 22__1.35" (34.2 mm) 1990 ___8.1" (20.6 cm) 1900__ 1.35" (34.4 mm) 1990 __14.2" (36.1 cm) 1950 _ (j) Feb 23__1.58" (40.1 mm) 1925 ___9.0" (22.9 cm) 1869__ 1.58" (40.1 mm) 1925 __12.0" (30.5 cm) 1869 Feb 24__1.17" (29.6 mm) 2016 __12.0" (30.5 cm) 1868__ 1.20" (30.6 mm) 2016*__13.0" (33.0 cm) 1868 _* (k) Feb 25__0.98" (24.9 mm) 1926 __13.0" (33.0 cm) 1960__ 2.07" (52.3 mm) 1932 __18.0" (45.7 cm) 1868 _ (L) Feb 26__0.75" (19.0 mm) 2013 ___7.8" (19.8 cm) 1946__ 1.54" (39.0 mm) 2013 __13.5" (34.3 cm) 1960 _ (m) Feb 27__0.84" (21.3 mm) 2013 ___7.0" (17.8 cm) 1873__ 1.01" (52.3 mm) 2013 __ 8.4" (21.3 cm) 1946 _ (m) Feb 28__0.77" (19.6 mm) 1902 __10.0" (25.4 cm) 1900__ 1.00" (25.4 mm) 1900 __14.3" (36.4 cm) 1984 _ (n) Feb 29__0.39" (9.9 mm) 1860 ____9.4" (23.9 cm) 1904__ 1.00" (25.4 mm) 1904 __ 9.6" (24.4 cm) 1984 ________________________________________________________________________ (a) A similar 2d snowfall total of 9.9" (25.0 cm) was reported Jan 31-Feb 1 2008, this one being more evenly distributed (5.4 cm plus 19.8 cm). Liquid equivalent for the entire event was 31.6 mm but the portion on Feb 1st was 19.4 mm. (b) The max precip from Feb 3, 1883 was from a combination of 8.0" snow and 0.35" rain (neither daily records). (c) Max precip Feb 4, 2006, boosted by 4.0 cm snow adding 4.0 mm l.e. to rainfall as shown. (x) The rainfall record is maintained as the Tor A data show very similar outcomes (29.8 mm total precip). The previous rainfall record had been 0.78" (19.8 mm) from 1842. Even with a slight reduction applied the 2006 value remains higher. (d) Snowfalls of 8.0" Feb 7, 1861 and 20.3 cm (as measured Feb 7, 2013) were tied after conversion. The 2013 snowmelt was also listed as 20.3 mm. This was part of a heavy two-day fall (see 2 day entry for 8th). Also, these snowfalls, while ahead of the maximum daily rainfall for precip, lost out to 1933 by .01" with a combined 0.47" rain and 3.4" snow. There had previously been a rainfall of 0.54" in 1914 so this was never a case of an augmented rainfall record being a precip record. Added later _ recently added historical weather maps extending back into the 1840s (wetterzentrale) now give me some basis for allocating Feb 1843 known total snowfall, and it appears that around 6th to 8th there was a promising situation for heavy snow especially on the 7th. The daily records listed may have been topped in 1843. (d-x) The Tor A - Tor B comparison shows very similar outcomes so no changes required here. (e) Two-day rainfall in 2001 Feb 8-9 reached 1.54" (39.2 mm) with an additional 0.52" (13.2 mm). In a three-day period, a total of 24.6 cm snow (7th-8th) followed by 39.2 mm rain (8th-9th) with 10:1 conversion used for the snow in this instance, amounted to 2.51" or 63.8 mm precipitation over three days. This was much of the 105 mm that fell in the month. New rainfall and precip records were set by 1.11" (28.1 mm) rain on 9th 2023, this broke records set in 1863 and 1894. former records were rain 0.63" (16.0 mm) 1863 ___ precip __ 0.90" (22.9 mm) 1894 On Feb 9 the (former record) maximum precip came from 1894 with 0.50" rain and 4.0" snow adding to .90" (22.9 mm). (f) Max precip from 1981 (1.15") just edged ahead of the rainfall derived value from 1943 (1.14"). The record value came from a combination of 17.2 mm rain and 10.0 cm snow with l.e. of 29.2 mm compared to the 29.0 mm derived from the conversion from the 1943 amount. Also there was a rainfall of 0.89" (22.7 mm) on same date in 1965. The author recalls this day as starting with freezing rain, then a milder rain followed by record warmth by the mid-day period (Feb 10 max 54 F 12 C). (g) Until the 1988 snowfall (precip 21.0 mm) the daily precip record had been 0.75" from 0.20" rain and 5.5" snow in 1887. Both of these were eclipsed by the heavier rainfall value in 2009. But until 1988, the 1887 record was the augmented value of the existing daily snowfall record. (g-x) The Tor A rainfall record of 1.45" (36.8 mm) compares to 25.6 mm from Tor A which has a further 7.6 mm on next day. That value of 25.6 mm would still be considerably ahead of the previous record of 0.73" (18.6 mm) from 1876. The two-day rainfall for Tor A, B remains similar (34-36 mm) ... this rainfall probably ended in the late overnight hours. (h) As discussed at various stages of the project, snowfall measurements since autumn 2017 have ceased to exist as anything beyond snow depth at the location as the site known as Tor A ceased to report daily rain and snow. Several possible record snowfalls are not entirely clear from the evidence available. On Feb 12, 2019, what I have to work with is a report of 20.9 mm, an increase in snow depth of 4 cm (by morning of 13th), highest temp 1.6 C, and nearest actual measurements from North York of 4.0 mm rain, 12.0 cm snow and precip of 20.2 mm. At Toronto City Centre (formerly Island A) a precip of 17 mm yielded a snow depth increase of 14 cm. From these clues I have assigned a snowfall of 10 cm for the Toronto (city) data base and 10 mm rain. Neither of these would be a daily record as shown but the combination is similar to the precip record. The snowfall was evidently at least partly melted before a snow depth was taken. (note 17th _ previous precip record 1.24" 1871. The 2022 amount of 1.41" consisted of 0.83" rain and 5.8" snow in a falling temperature transitional situation. Another 0.9" fell on the 18th. ) (i) The rainfall record on Feb 21st was tied in terms of conversion to inches -- 20.3 mm in 1976 and 20.2 mm in 1997 were both 0.80". Also, the 1997 rainfall was a two-day total (from 20th) of 1.39" (35.6 mm). (j) Despite adding 0.2 cm snow and 0.2 mm liquid, the conversion of 34.4 mm stayed in the range of 1.35" due to rounding. Meanwhile in 1922, there had been a heavy mixed fall of .69" rain and 6.1" snow (1.30") which was the precip record until 1990. The snowfall daily record from 1900 also had significant added rainfall (0.35") for a total precip value of 1.16" (29.5 mm). (k) The 30.5 mm precip equivalent from the 1868 record snowfall was edged out by 30.6 mm (also converts to 1.20") when the rainfall in 2016 was added to 1.4 cm snow (equivalent 1.0 mm). There was also a heavy rainfall in 1985 on this date (25 mm, 0.98"). The 2016 value is from Tor B but is unchallenged as Tor A had missing data, check of other locations confirms timing not an issue. (L) The record precip (for the month of Feb as well as 25th) came from a mixed snow, sleet and rain event (1965) that was recorded as 11.8" snow (30.0 cm), 0.25" rain (6.4 mm), 2.07" (52.6 mm) precip. The author measured mostly snow in this same event at a location 50 km west of Toronto (Georgetown, ON) and had 16.6" snow and just .01" rain observed briefly. The Toronto snowfall was in addition to 0.6" (1.5 cm) on 24th. (m) The record precip was based on 19.0 mm rain, 10.0 cm snow but 39.0 mm total liquid (26th 2013). The following day's total was also a combination, of 21.3 mm rain, 4.0 cm snow, and 25.7 mm liquid (1.01"). These are values from Tor B. The raw precip values from Tor A were 17.4 mm and 30.4 mm. Whatever the actual precise values, either location beats the older rainfall and/or precip records by a considerable margin. Feb 27, 1958 had a snow-freezing rain combination that gave a total of 0.81" -- one suspects that had this been in the later "liquid equivalent" era the values might have been higher. (n) The daily snowfall record was 10" (25.4 cm) in 1900 (28th) but 9.6" (24.4 cm) in 1984 added to an earlier fall on 27th to give a heavier total of 14.3". Although nothing further fell on 29th, that two-day total edged out the one-day total from 29th 1904. All snowfalls in 1984 reverted to the 10:1 method just for that one year in an otherwise liquid equivalent era 1963 to 2017. (It may have been the case that all of them were exactly 10:1 although that seems improbable). Because 1900 was not a leap year, a further 7.8" of snow on March 1st shows up there as the two-day record amount that would have fallen into Feb 29th otherwise. The smaller sample size for leap year day apparently caused the record rainfall to be unusually low although the record snowfall for the date does not vary from the trend established. (x) The record values earlier marked with (x) and another letter are discussed under that letter ... for Feb 16, the 2006 maximum rainfall is maintained as both Tor A and Tor B have similar values for the date (Tor A is shown, Tor B has 17.2 mm). (Feb 20) _ The value from TorA (23.0 mm) is used but even Tor B broke the existing record with 15.2 mm (0.60") still ahead of the previous mark, 0.48" from 2002.

Rankings for Annual Rainfall, Snowfall and Precipitation 1840-2024 There are 183 years available for ranking (1840-2022) although 1840 is missing Jan and Feb, and some snowfall values have been estimated to get approximate ranks for precipitation when rainfall is known. There were missing rainfall months in late 1844 and early 1845 so these two years are ranked from the data that are available, as explained in the notes after the table. 144.0 cm snowfall in 1840 appears as 87th heaviest, and is based on temperature correlations with snowfall, so the estimate is not very precise. The winter of 1839-40 is not ranked so the winter of 2022-23 appears in the table. All 2022 elements have been inserted into the table. 2023 elements will be listed at base of table, until winter 2023-24 snowfall total is known, after which, all values will enter and table will expand to 184 ranks. The entries for 1840-1841 and 1841-1842 winter snowfalls are very approximate based on average amounts of snow for the temperature ranges of those winters. While 1841-1842 is shown at 11th place (75 cm) to preserve the actual measured top ten snow-free winters, the amount of snow that was added to rainfalls in the precip section for those approximate rankings amounted to 35 cm for the winter which would rank lowest ahead of 2011-2012 currently the least snowy winter. The year 1842 was also ranked 11th with 80 cm (about half is assigned to December of that year). The rankings for 1841 and winter 1840-41 are closer to average values. The winter of 1842-43 had measured heavy snowfall amounts after January (138.3 cm Jan to May 1843) and the estimates for Nov-Dec 1842 are roughly equivalent in terms of proportions to the rest of the winter season as those were generally cold months and a check of historical weather maps shows potential for similar snowfall rates relative to normal. Since 1840 snowfall is unknown, a placeholder exists for it at the location considered most likely from winter month temperatures. That is located at 87th wettest 144 cm. It is unlikely to be much higher because Feb and Mar were quite mild in the region so most of the snow probably fell in Jan, Nov and Dec. The estimate is there mainly to keep other years in best possible rankings. These tables show two sets of snowfall ranks, calendar year (column 2), and winters (October to May total snowfalls in column 3). There are also rankings for summer rainfall totals (June to August) and extended summer rainfall (May to September) in the last two columns. Column 4 is for total annual precipitation. Once again these rankings run from 01 to 91 (dry or lower totals), a median value 92 both ways then 91 back to 01 (towards the wettest or highest totals). RANK __ Rainfall (mm) _ Snowfall (cm) _ Winter snow (cm) __ Precip (mm) _ Summer rain (mm) _Extended (mm) (dry) _01 ___ 1874__446.9 ___ 2006__ 31.2 ___ 2011-2012__ 45.9 ___ 1933__605.4 ___ 1899__ 49.8___ 1887_186.5 _02 ___ 1887__458.1 ___ 2010__ 52.1 ___ 2009-2010__ 46.2 ___ 1963__611.9 ___ 1894__ 78.3___ 1933_209.5 _03 ___ 1872__473.3 ___ 2017__ 58.4 ___ 1952-1953__ 46.8 ___ 1874__618.8 ___ 1959__ 85.3___ 1913_211.8 _04 ___ 1875__483.1 ___ 2012__ 59.6 ___ 2015-2016__ 59.7 ___ 1949__622.1 ___ 1898__ 94.7___ 1949_214.9 _05 ___ 1933__485.5 ___ 1937__ 61.8 ___ 1932-1933__ 65.3 ___ 1934__627.1 ___ 1868_ 109.7___ 1877_217.9 _06 ___ 1963__486.0 ___ 1953__ 66.7 ___ 2006-2007__ 67.9 ___ 1882__632.4 ___ 1896_ 112.8___ 1874_218.0 _07 ___ 1867__487.9 ___ 2009__69.8 ___ 1936-1937__ 70.3 ___ 2016__633.2 ___ 1873_ 115.5___ 1898_224.3 _08 ___ 1971__496.3 ___ 1919__72.9 ___ 2005-2006__ 70.4 ___ 1872__644.6 ___ 1949_ 117.6___ 1959_224.5 _09 ___ 1949__502.5 ___ 2015__77.3 ___ 2001-2002__ 71.4 ___ 1988__647.2 ___ 1848_ 118.1___ 2007_225.1 _10 ___ 1914__503.2 ___ 1998__79.6 ___ 1982-1983__ 73.0 ___ 1938__651.4 ___ 1876_ 124.0___ 2016_228.8 _11 ___ 2007__504.3 ___ 1842e_79.8 ___ 1841-1842e_ 75.0 ___ 1877__652.0 ___ 1853_ 129.3___ 1936_230.0 _12 ___ 1873__515.6 ___ 1981__79.9 ___ 1994-1995__ 75.4 ___ 2007__653.3 ___ 1907_ 133.1___ 1881_230.6 _13 ___ 1934__518.0 ___ 1899__80.9 ___ 1905-1906__ 76.6 ___ 1930__654.6 ___ 1867_ 135.1___ 2005_239.4 _14 ___ 1884__523.3 ___ 2021__81.0 ___ 1877-1878__ 76.7 ___ 1941__655.2 ___ 1887_ 135.2___ 1873_248.3 _15 ___ 1882__524.3 ___ 1952__84.2 ___ 2016-2017__ 77.0 ___ 1958__655.8 ___ 1934_ 135.7___ 1867_248.9 _16 ___ 1939__526.7 ___ 1992__84.6 ___ 1881-1882__ 77.2 ___ 1887__655.9 ___ 1936_ 138.0___ 1920_252.6 _17 ___ 2016__535.0 ___ 1928__85.2 ___ 1937-1938__ 78.4 ___ 1969__664.7 ___ 1978_ 138.0___ 1921_255.1 _18 ___ 1958__535.1 ___ 1921__87.7 ___ 1957-1958__ 79.6 ___ 1952__665.1 ___ 1875_ 140.3___ 1934_255.4 _19 ___ 1876__535.8 ___ 1888__88.0 ___ 1999-2000__ 82.8 ___ 1971__667.3 ___ 1874_ 140.5___ 1966_257.0 _20 ___ 1881__539.9 ___ 1969__89.2 ___ 1928-1929__ 85.7 ___ 1888__668.7 ___ 2007_ 140.5___ 1971_260.6 _21 ___ 1997__540.2 ___ 1983__93.2 ___ 1988-1989__ 87.2 ___ 1935__680.9 ___ 2016_ 140.5___ 1848_260.8 _22 ___ 1936__541.8 ___ 1938__94.4 ___ 1847-1848__ 88.6 ___ 1848__684.4 ___ 2011_ 141.6___ 1954_261.3 _23 ___ 1931__542.3 ___ 1988__94.4 ___ 1941-1942__ 89.6 ___ 1881__686.2 ___ 1966_ 144.7___ 1900_263.2 _24 ___ 1941__543.9 ___ 1877__94.8 ___ 1987-1988__ 92.4 ___ 1998__688.4 ___ 1933_ 146.8___ 1969_264.3 _25 ___ 1930__545.8 ___ 2018__95.0 ___ 1918-1919__ 93.0 ___ 2004__691.8 ___ 1994_ 149.8___ 1899_264.5 _26 ___ 1908__551.9 ___ 1913__95.5 ___ 1980-1981__ 94.3 ___ 1914__692.1 ___ 1881_ 150.9___ 1988_267.4 _27 ___ 1856__552.9 ___ 1906__95.6 ___ 2017-2018__ 95.2 ___ 1931__694.1 ___ 1988_ 151.0___ 1876_268.7 _28 ___ 1896__555.8 ___ 1894__95.9 ___ 1927-1928__ 96.4 ___ 1994__694.6 ___ 1983_ 152.0___ 2022_273.6 _29 ___ 1938__557.0 ___ 1851__97.6 ___ 1991-1992__ 96.4 ___ 1921__696.0 ___ 1952_ 152.4___ 1965_274.0 _30 ___ 1877__557.3 ___ 2016__98.3 ___ 1968-1969__ 97.0 ___ 1953__696.2 ___ 1909_ 152.9___ 1952_274.4 _31 ___ 1994__560.0 ___ 2001__99.0 ___ 1962-1963__ 99.2 ___ 2015__701.8 ___ 1856_ 154.4___ 1963_277.9 _32 ___ 1935__561.3 ___ 1990__99.6 ___ 2020-2021__100.5___ 1939__703.7 ___ 1984_ 154.5___ 1998_278.6 _33 ___ 1900__564.2 ___ 2002_100.7 ___ 1912-1913__100.9___ 1936__711.1 ___ 1938_ 156.6___ 1979_279.0 _34 ___ 2004__565.8 ___ 1974_102.4 ___ 1891-1892__102.9___ 1895__713.4 ___ 2002_ 156.8___ 1871_279.9 _35 ___ 2005__567.4 ___ 1980_103.2 ___ 1896-1897__103.1___ 1997__713.8 ___ 2001_ 157.0___ 1895_280.8 _36 ___ 1848__567.6 ___ 1927_103.6 ___ 2014-2015__104.1___ 2002__715.3 ___ 1882_ 158.3___ 1948_282.5 _37 ___ 1988__569.2 ___ 1995_104.6 ___ 1990-1991__104.2___ 1860__716.5 ___ 1916_ 158.5___ 1911_283.0 _38 ___ 1920__571.6 ___ 1892_107.2 ___ 1858-1859__104.9___ 1978__716.8 ___ 1948_ 159.0___ 2004_286.8 _39 ___ 1879__572.6 ___ 1882_107.9 ___ 1920-1921__109.0___ 1989__716.9 ___ 1895_ 159.6___ 1931_290.3 _40 ___ 1944__573.4 ___ 1930_108.8 ___ 1943-1944__110.0___ 1856__719.1 ___ 1913_ 160.2___ 1914_290.6 _41 ___ 1895__574.2 ___ 1934_109.1 ___ 2003-2004__110.1___ 1966__725.0 ___ 2005_ 160.2___ 1941_290.8 _42 ___ 1966__574.3 ___ 1849_109.2 ___ 1889-1890__112.3___ 1884__727.2 ___ 1973_ 161.3___ 1997_294.2 _43 ___ 1969__578.4 ___ 1841_110.0e___1969-1970__114.4___ 2022__728.9 ___ 1963_ 161.8___ 1994_295.0 _44 ___ 1871__579.9 ___ 1986_111.2 ___ 1972-1973__114.5___ 1913__731.7 ___ 1930_ 163.0___ 1875_295.7 _45 ___ 1888__580.7 ___ 1941_111.3 ___ 1865-1866__114.8___ 1948__732.6 ___ 2017_ 163.9___ 1909_299.2 _46 ___ 1952__581.0 ___ 1880_111.9 ___ 1985-1986__115.0___ 2005__736.2 ___ 1884_ 164.0___ 1939_299.9 _47 ___ 2022__587.1 ___ 1973_112.2 ___ 1961-1962__115.5___ 1899__737.3 ___ 2004_ 164.6___ 1882_302.6 _48 ___ 1948__588.3 ___ 1957_115.3 ___ 1926-1927__115.6___ 1853__737.8 ___ 1865_ 165.2___ 1888_302.6 _49 ___ 1999__593.2 ___ 1858_115.4 ___ 1997-1998__115.6___ 1922__740.0 ___ 1953_ 166.1___ 1884_303.2 _50 ___ 1946__593.3 ___ 1860_115.9 ___ 1967-1968__116.9___ 1896__742.1 ___ 1911_ 166.6___ 1907_304.0 _51 ___ 1860__600.7 ___ 1848_116.8 ___ 1871-1872__119.1___ 1911__742.7 ___ 1846_ 168.5___ 1863_304.5 _52 ___ 1853__602.7 ___ 1964_119.2 ___ 1857-1858__119.7___ 1879__746.5 ___ 1998_ 170.4___ 1896_304.5 _53 ___ 1978__604.6 ___ 1935_119.4 ___ 1906-1907__120.8___ 1946__746.5 ___ 1979_ 171.8___ 1930_305.3 _54 ___ 1898__606.1 ___ 1949_119.6 ___ 1921-1922__121.1___ 1999__746.6 ___ 1854_ 172.6___ 1973_306.1 _55 ___ 1921__608.5 ___ 1933_119.8 ___ 1979-1980__121.1___ 2014__746.8 ___ 1877_ 172.7___ 2002_309.4 _56 ___ 1911__609.1 ___ 1897_120.5 ___ 1934-1935__121.4 ___ 1908__749.6 ___ 2003_ 173.0___ 1951_309.8 _57 ___ 2002__611.0 ___ 1958_120.8 ___ 1939-1940__121.5 ___ 1892__751.2 ___ 1965_ 174.2___ 1950_310.9 _58 ___ 1922__612.1 ___ 1945_121.3 ___ 1974-1975__121.9 ___ 1894__753.1 ___ 1921_ 174.8___ 1938_312.3 _59 ___ 1998__613.8 ___ 2004_121.3 ___ 2012-2013__124.0 ___ 2021__753.4 ___ 1969_ 175.2___ 1891_312.4 _60 ___ 1984__615.6 ___ 1891_121.5 ___ 1848-1849__124.2 ___ 1900__753.7 ___ 1999_ 177.6___ 1872_313.2 _61 ___ 1960__618.9 ___ 1963_121.8 ___ 2010-2011__124.3 ___ 1984__754.2 ___ 1864_ 178.3___ 1983_313.5 _62 ___ 2015__619.2 ___ 2011_122.2 ___ 1846-1847__125.5 ___ 1875__756.2 ___ 1886_ 178.3___ 1935_314.0 _63 ___ 2014__620.0 ___ 1993_123.0 ___ 1954-1955__125.9 ___ 1919__757.2 ___ 1997_ 179.0___ 1929_314.2 _64 ___ 1976__621.7 ___ 1962_124.7 ___ 1989-1990__126.4 ___ 1920__760.6 ___ 2022_ 184.2___ 1980_315.1 _65 ___ 1989__623.2 ___ 1902_124.9 ___ 1849-1850__127.5 ___ 1970__763.1 ___ 1889_184.7___ 1889_317.8 _66 ___ 1970__624.5 ___ 1942_125.2 ___ 1850-1851__127.5 ___ 1987__764.7 ___ 1957_ 186.1___ 1999_325.2 _67 ___ 1889__626.5 ___ 1854_125.8 ___ 1863-1864__127.5 ___ 1867__768.6 ___ 1931_186.9___ 1978_327.3 _68 ___ 1953__629.7 ___ 1989_125.8 ___ 1852-1853__127.8 ___ 2000__773.6 ___ 1863_187.4 ___ 2020_328.2 _69 ___ 1913__636.1 ___ 1987_126.1 ___ 2018-2019__128.0 ___ 1962__774.0 ___ 1871_188.5___ 1955_329.9 _70 ___ 2000__636.8 ___ 1847_126.6 ___ 1948-1949__128.3 ___ 1925__775.3 ___ 1935_189.5___ 1865_330.3 _71 ___ 1959__638.5 ___ 1996_126.8 ___ 1887-1888__128.9 ___ 1964__776.2 ___ 1954 190.5___ 1925_333.7 _72 ___ 1964__641.1 ___ 1903_126.9 ___ 1902-1903__129.5 ___ 1944__779.6 ___ 1920_191.9___ 1984_335.8 _73 ___ 1901__641.9 ___ 1922_128.2 ___ 1924-1925__129.8 ___ 1903__780.3 ___ 1946_193.6___ 1886_337.8 _74 ___ 1925__642.5 ___ 1878_129.5 ___ 2008-2009__130.1 ___ 1927__780.7 ___ 2021_194,8___ 1946_340.6 _75 ___ 1892__643.9 ___ 1991_130.0 ___ 1960-1961__130.3 ___ 2010__783.5 ___ 1912_195.1___ 1851_351.4 _76 ___ 1916__644.5 ___ 1954_131.3 ___ 1901-1902__131.8 ___ 1851__784.6 ___ 1971_196.6___ 1916_343.1 _77 ___ 1987__645.4 ___ 1978_131.5 ___ 1894-1895__132.6 ___ 1980__784.9 ___ 1851_196.9___ 1879_343.7 _78 ___ 1845__650.0*___1907_132.0 ___ 1956-1957__132.6 ___ 1961__785.3 ___ 1888_197.0___ 1903_344.4 _79 ___ 1950__650.3 ___ 1866_132.4 ___ 2022-2023__133.2 ___ 1898__787.2 ___ 1939_198.1___ 1995_345.2 _80 ___ 1961__652.3 ___ 2014_132.7 ___ 1950-1951__134.2 ___ 1906__787.7 ___ 1929_198.6___ 1960_346.5 _81 ___ 1912__652.8 ___ 1961_132.8 ___ 1893-1894__134.7 ___ 1959__787.7 ___ 1962_198.6___ 1864_346.7 _82 ___ 1903__653.5 ___ 1925_132.9 ___ 1973-1978__134.9 ___1902__789.2 ___ 1872_199.6___ 1862_348.2 _83 ___ 1862__653.7 ___ 2007_133.4 ___ 1840-1841__135.0e___ 1845__791.5*___1989_200.4___ 1985_348.4 _84 ___ 1883__654.6 ___ 1890_133.6 ___ 1904-1905__135.6 ___ 1974__792.0 ___ 1987_201.0___ 1991_348.8 _85 ___ 1962__655.1 ___ 1911_133.6 ___ 1953-1954 __135.7 ___2017__792.4 ___ 1900_201.2___ 1937_349.1 _86 ___ 1905__656.6 ___ 1853_135.1 ___ 2021-2022__136.1 ___ 1889__795.4 ___ 1861_203.0___ 1860_349.7 _87 ___ 1899__656.7 ___ 1970_136.5 ___ 2004-2005__139.4 ___ 1905__795.4 ___ 1940_203.4___ 1922_350.7 _88 ___ 1894__657.2 ___ 1905_137.9 ___ 1897-1898__140.7 ___ 1976__795.4 ___ 1910_204.2___ 1970_350.8 _89 ___ 1909__661.9 ___ 1929_138.3 ___ 1916-1917__140.7 ___ 1891__802.4 ___ 1960_204.2___ 2011_352.7 _90 ___ 1965__662.1 ___ 1984_138.6 ___ 1853-1854__142.3 ___ 1873__804.6 ___ 1925_205.4___ 1989_352.8 _91 ___ 1902__664.3 ___ 1895_139.1 ___ 1965-1966__142.4 ___ 1907__804.6 ___ 1919_205.5___ 2001_352.8 <<< == == ----- above this line, the dry or lower half of values are listed (median value between lines) ---- == === >>> _92 ___ 1947__664.3 ___ 1943_139.7 ___ 1963-1964__ 143.7 ___ 2001__806.2 ___ 1985_207.0___ 1897_352.9 <<< == == ----- below this line, the wet or higher half of values are listed (median value between lines) ---- == == >>> _91 ___ 1955__666.2 ___ 1845_141.5*___ 1995-1996__143.7 ___ 1960__809.6 ___ 1845_207.4___ 2017_353.1 _90 ___ 1924__666.5 ___ 2022 141.8 ___ 2019-2020__144.5 ___ 1916__815.4 ___ 1976_207.5___ 1958_353.2 _89 ___ 1885__670.8 ___ 1904_143.4 ___ 1976-1977__145.4 ___ 1955__816.0 ___ 1847_208.0___ 2021_354.1 _88 ___ 1923__671.3 ___ 2003_143.8 ___ 1986-1987__146.7 ___ 1901__821.5 ___ 1942_208.8___ 1987_355.8 _87 ___ 2021__672.4 ___ 1840_144.0* __ 1945-1946__147.2 __ 2020__821.6 ___ 1941_211.6___ 2014_357.1 _86 ___ 1907__672.5 ___ 1948_144.4 ___ 1978-1979__148.0 ___ 2012__823.6 ___ 1980_211.8___ 1927_360.1 _85 ___ 2020 __674.3 ___ 1881_146.2 ___ 1929-1930__148.9 ___ 1876__823.7 ___ 1914_212.8___ 1964_360.1 _84 ___ 1868__674.5 ___ 2005_146.8 ___ 1931-1932__149.3 ___ 1897__827.3 ___ 1943_212.9___ 2015_361.9 _83 ___ 1910__676.1 ___ 2020_147.3 ___ 1940-1941__149.4 ___ 1912__827.3 ___ 1991_219.8___ 1943_365.0 _82 ___ 1927__677.0 ___ 1959_149.0 ___ 1947-1948__149.7 ___ 1993__827.4 ___ 2014_220.0___ 2019_369.2 _81 ___ 1863__678.4 ___ 2019_149.0 ___ 1880-1881__151.4 ___ 1943__829.0 ___ 1908_221.7___ 1976_369.8 _80 ___ 1865__679.8 ___ 1955_149.8 ___ 2013-2014__151.6 ___ 1871__832.8 ___ 1932_221.7___ 1908_372.6 _79 ___ 1891__680.9 ___ 1976_149.8 ___ 1933-1934__152.0 ___ 1858__833.1 ___ 1974_222.0___ 1853_373.6 _78 ___ 2003__681.5 ___ 2013_150.2 ___ 1993-1994__152.4 ___ 1937__835.0 ___ 1944_225.1___ 1953_373.6 _77 ___ 1919__684.3 ___ 1931_151.8 ___ 1909-1910__152.9 ___ 1909__837.3 ___ 1855_225.8___ 1852_374.2 _76 ___ 1851__687.0 ___ 1956_152.7 ___ 1984-1985__153.0 ___ 1885__837.4 ___ 1975_225.8___ 1910_375.2 _75 ___ 1943__689.3 ___ 1946_153.1 ___ 1888-1889__153.3 ___ 1863__838.3 ___ 2020 226.1 ___ 1944_376.7 _74 ___ 1861__691.7 ___ 1966_153.5 ___ 1930-1931__153.4 ___ 1975__838.7 ___ 1945_227.3___ 1856_376.9 _73 ___ 1906__691.9 ___ 2000_155.2 ___ 1878-1879__153.6 ___ 1865__840.6 ___ 1958_227.4___ 1961_377.0 _72 ___ 1980__695.5 ___ 1917_156.6 ___ 1843-1844__154.2 ___ 1954__842.9 ___ 1906_231.4___ 1972_377.4 _71 ___ 1840__695.8*___ 1968_156.7 ___ 1890-1891__155.0 ___ 1854__844.5 ___ 2019_233.7___ 1932_379.9 _70 ___ 1975__697.9 ___ 1846_157.6 ___ 1898-1899__155.2 ___ 1957__846.0 ___ 1955_234.7___ 1975_380.0 _69 ___ 1844__700.0*___ 1926_157.8___ 1910-1911__155.8 ___ 1947__846.6 ___ 1995_234.8___ 1893_380.5 _68 ___ 1956__701.1 ___ 1975_157.8 ___ 1879-1880__156.1 ___ 1991__847.4 ___ 1879_235.7___ 1990_380.8 _67 ___ 1886__705.8 ___ 1863_159.9 ___ 1903-1904__156.8 ___ 1923__851.8 ___ 1901_237.1___ 1962_382.3 _66 ___ 1897__707.0 ___ 1865_160.8 ___ 1919-1920__156.8 ___ 1965__852.3 ___ 1922_237.7___ 1861_382.8 _65 ___ 1993__707.0 ___ 1932_160.8 ___ 1913-1914__157.9 ___ 1956__853.7 ___ 2000_239.4___ 2003_384.2 _64 ___ 1967__707.3 ___ 1967_161.1 ___ 1914-1915__158.0 ___ 1950__854.9 ___ 1937_240.1___ 1919_384.8 _63 ___ 1974__709.4 ___ 1999_161.2 ___ 1981-1982__158.9 ___ 1910__856.9 ___ 1990_240.4___ 1993_385.0 _62 ___ 1954__711.6 ___ 1918_162.8 ___ 1998-1999__162.2 ___ 2003__860.6 ___ 1844_240.9*__ 1906_388.4 _61 ___ 1918__711.9 ___ 1915_162.9 ___ 2002-2003__162.5 ___ 1924__861.0 ___ 1951_241.5___ 1957_389.3 _60 ___ 1972__716.6 ___ 1971_163.9 ___ 1992-1993__163.0 ___ 1967__861.9 ___ 1970_241.6___ 1850_389.5 _59 ___ 1858__718.1 ___ 1859_164.8 ___ 1925-1926__163.1 ___ 1983__862.7 ___ 1923_242.3___ 2009_390.4 _58 ___ 1854__718.8 ___ 1856_166.3 ___ 1885-1886__163.4 ___ 1981__864.5 ___ 2006_243.1___ 1844_391.5* _57 ___ 1917__719.7 ___ 1982_166.5 ___ 1900-1901__164.1 ___ 1883__867.8 ___ 1992_246.8___ 1902_395.5 _56 ___ 1915__720.2 ___ 1885_166.6 ___ 2000-2001__165.6 ___ 1862__870.7 ___ 2012_247.9___ 1846_397.1 _55 ___ 1951__720.5 ___ 1940_168.2 ___ 1958-1959__165.8 ___ 1868__874.2 ___ 1972_248.6___ 2006_403.0 _54 ___ 1991__720.6 ___ 1843_168.3 ___ 1845-1846__166.0 ___ 1918__874.7 ___ 1918_249.1___ 2018_403.1 _53 ___ 2001__721.8 ___ 1889_168.8 ___ 1983-1984__167.0 ___ 1917__876.5 ___ 1924_250.2___ 1901_403.2 _52 ___ 1846__724.0 ___ 1936_169.2 ___ 1975-1976__170.7 ___ 1979__880.2 ___ 1927_250.4___ 1923_404.3 _51 ___ 1850__725.6 ___ 1985_170.0 ___ 1946-1947__171.9 ___ 2011__881.5 ___ 1893_250.5___ 2012_409.5 _50 ___ 2010__725.7 ___ 1916_170.9 ___ 1966-1967__172.5 ___ 1846__881.8 ___ 2015_250.8___ 1885_409.7 _49 ___ 1957__730.7 ___ 1872_171.4 ___ 1859-1860__173.3 ___ 1861__881.8 ___ 1862_251.2___ 1868_413.3 _48 ___ 1940__730.8 ___ 1874_171.9 ___ 1899-1900__173.6 ___ 1915__882.9 ___ 1852_252.5___ 1967_414.4 _47 ___ 1979__732.5 ___ 1879_174.0 ___ 1955-1956__173.8 ___ 1990__883.4 ___ 1860_252.7___ 1845_414.9 _46 ___ 2017__734.6 ___ 1912_174.5 ___ 1996-1997__174.4 ___ 1844__885.7*___1858_253.2___ 1917_418.4 _45 ___ 1985__738.5 ___ 1965_174.6 ___ 1915-1916__174.5 ___ 1973__887.5 ___ 1891_255.5___ 1890_419.3 _44 ___ 1862__755.2 ___ 1997_174.8 ___ 1935-1936__175.2 ___ 1886__892.6 ___ 1885_260.1___ 1974_419.4 _43 ___ 2019__758.5 ___ 1977_174.9 ___ 1977-1978__177.3 ___ 1928__897.8 ___ 1993_260.2___ 1940_424.4 _42 ___ 2012__763.4 ___ 1909_175.6 ___ 1949-1950__177.6 ___ 1880__897.9 ___ 1902_261.9___ 1854_428.9 _41 ___ 1904__763.8 ___ 1994_176.2 ___ 1951-1952__177.9 ___ 1940__898.9 ___ 1950_264.7___ 1912_429.1 _40 ___ 1983__768.9 ___ 1939_177.0 ___ 1844-1845__178.4 ___ 1951__899.1 ___ 1849_264.7___ 1847_430.0 _39 ___ 2008__769.8 ___ 1979_177.5 ___ 1971-1972__179.8 ___ 1843__900.0e___1897_266.0___ 2008_431.6 _38 ___ 1937__773.3 ___ 1850_178.0 ___ 1895-1896__180.4 ___ 1985__900.7 ___ 1961_271.6___ 1849_433.4 _37 ___ 2011__776.8 ___ 1951_178.5 ___ 1867-1868__181.4 ___ 1850__903.6 ___ 1967_271.9___ 1905_434.0 _36 ___ 1932__779.8 ___ 1901_179.6 ___ 1917-1918__181.5 ___ 1904__907.3 ___ 1859_272.8___ 1858_434.4 _35 ___ 1968__781.9 ___ 1910_180.6 ___ 1964-1965__181.9 ___ 2019__907.5 ___ 1956_276.6___ 1992_434.4 _34 ___ 1990__784.2 ___ 1923_180.8 ___ 1923-1924__182.0 ___ 1992__913.8 ___ 1968_283.7___ 1918_434.5 _33 ___ 1880__786.2 ___ 1898_181.0 ___ 1862-1863__182.8 ___ 1972__927.7 ___ 2018_286.5___ 1855_436.4 _32 ___ 1973__792.3 ___ 1947_182.3 ___ 1855-1856__183.0 ___ 1995__929.8 ___ 1842_286.8___ 2000_439.8 _31 ___ 1893__792.5 ___ 1844_185.7 ___ 1884-1885__183.7 ___ 1849__931.3 ___ 1903_288.3___ 1956_443.2 _30 ___ 1981__793.2 ___ 1896_186.2 ___ 1942-1943__184.4 ___ 2018__935.7 ___ 1926_288.5___ 2010_444.6 _29 ___ 1869__795.2 ___ 1886_186.6 ___ 1892-1893__186.5 ___ 1968__937.3 ___ 1981_288.8___ 1947_449.7 _28 ___ 1982__796.1 ___ 1857_187.5 ___ 1970-1971__187.8 ___ 1929__939.8 ___ 1982_291.0___ 1859_450.8 _27 ___ 1852__797.6 ___ 1914_188.7 ___ 1908-1909__191.8 ___ 1932__940.4 ___ 1880_291.6___ 1894_456.0 _26 ___ 1929__801.6 ___ 1920_189.1 ___ 1944-1945__193.3 ___ 1847__943.3 ___ 1996_296.8___ 1928_461.5 _25 ___ 1926__803.9 ___ 1900_189.3 ___ 1883-1884__194.0 ___ 1864__944.8 ___ 2009_298.0___ 1968_461.5 _24 ___ 1928__812.8 ___ 1864_189.4 ___ 1911-1912__194.0 ___ 2009__946.6 ___ 1890_305.8___ 1926_466.6 _23 ___ 1855__813.0 ___ 1861_189.9 ___ 1886-1887__194.7 ___ 1982__947.3 ___ 2008_306.7___ 1924_469.9 _22 ___ 1847__816.9 ___ 1960_190.7 ___ 1907-1908__198.6 ___ 1890__951.1 ___ 1905_308.1___ 1982_470.1 _21 ___ 1890__817.6 ___ 1924_194.6 ___ 1842-1843__200.0e___1926__961.7 ___ 1964_308.2___ 1880_470.5 _20 ___ 1849__822.1 ___ 1972_195.0 ___ 1861-1862__201.2 ___ 1942__968.0 ___ 1892_313.0___ 1842_472.0 _19 ___ 1995__822.6 ___ 1908_197.6 ___ 1860-1861__203.6 ___ 2006__979.8 ___ 1883_314.7___ 1981_473.8 _18 ___ 1992__826.8 ___ 1887_198.0 ___ 1922-1923__204.9 ___ 1866_ 1006.8 ___ 1904_316.8___ 1942_474.0 _17 ___ 2018__840.7 ___ 1868_200.0 ___ 1876-1877__206.0 ___ 1893_ 1009.8 ___ 1947_318.3___ 1892_480.8 _16 ___ 1942__842.9 ___ 1884_204.1 ___ 1938-1939__209.7 ___ 1869_ 1010.3 ___ 1866_321.5___ 1883_484.4 _15 ___ 1857__850.5 ___ 1950_204.9 ___ 2007-2008__209.7 ___ 1859_ 1016.1 ___ 2010_329.5___ 1840_487.8 _14 ___ 1859__851.3 ___ 1944_206.3 ___ 1959-1960__211.0 ___ 2008_ 1021.4 ___ 1850_331.0___ 1915_504.0 _13 ___ 2009__860.5 ___ 2008_210.9 ___ 1856-1857__212.4 ___ 1945_ 1030.9 ___ 1917_331.5___ 1869_512.1 _12 ___ 1870__862.9 ___ 1883_213.4 ___ 1873-1874__213.1 ___ 1857_ 1037.9 ___ 1840_331.7___ 1904_514.6 _11 ___ 1866__874.4 ___ 1869_214.8 ___ 1864-1865__213.6 ___ 1852_ 1058.0 ___ 1869_338.3___ 1945_523.0 _10 ___ 1945__909.5 ___ 1862_217.0 ___ 1854-1855__213.7 ___ 1986_ 1060.0 ___ 1870_341.2___ 1857_526.9 _09 ___ 1841__929.1 ___ 1893_217.5 ___ 1868-1869__220.5 ___ 1841_ 1064.0e___1857_353.1___ 1977_535.5 _08 ___ 2006__948.6 ___ 1855_251.2 ___ 1882-1883__234.9 ___ 1855_ 1064.3 ___ 1977_353.2___ 1866_537.9 _07 ___ 1986__951.0 ___ 1871_252.9 ___ 1875-1876__249.0 ___ 1996_ 1077.2 ___ 1915_355.4___ 1870_543.4 _06 ___ 1977__957.6 ___ 1852_260.5 ___ 1851-1852__249.3 ___ 1977_ 1109.8 ___ 1843_357.6___ 1841_546.6 _05 ___ 1996__958.4 ___ 1875_273.1 ___ 1870-1871__253.7 ___ 2013_ 1133.6 ___ 1986_360.5___ 2013_556.2 _04 ___ 2013__984.7 ___ 1867_280.6 ___ 1874-1875__254.0 ___ 1842_ 1150.0e___1928_370.8___ 1996_591.6 _03 ___ 1842_1088.9 ___ 1876_288.1 ___ 1866-1867__288.8 ___ 1870_ 1175.2 ___ 1878_371.9___ 1878_633.5 _02 ___ 1878_1103.6 ___ 1873_289.1 ___ 1872-1873__289.8 ___ 1878_ 1233.2 ___ 2013_394.2___ 1843_645.7 _01 ___ 1843_1104.3 ___ 1870_312.3 ___ 1869-1870__313.7 ___ 1843_ 1272.7 ___ 1841_402.6___ 1986_649.9 __ xx __ 2023 __ 721.0 __ 2023 _107.7 __ 2023-2024 __(51.7) ___ 2023_ 828.7 ____ 2023 _ 247.3 _ 2023 _ 307.1 ___ ranks ____ 54 w ___________ 39d ______ 4d in progress ___________ 82d _______________ 57w _________ 55d above to be added to table after 2023-24 snow season ends June 1st _________________________________________________________________________________ * notes on 1844 and 1845, incomplete rainfall years Aug 1-12 1844 no data, unadjusted (79.1 mm rest of Aug) totals for summer rainfalls Jan to Sep 1844 total rainfall 581.3 (incl incomplete Aug) adjusted to 700 (Oct cold and had record snow, probably a wet month) Apr to Dec 1845 total rainfall 572.4 adjusted to 650 mm Note also 1840 total rainfall as shown March to December, probably 30-60 mm at least in mild Feb 1840 (may not have added much in cold Jan 1840). Total is unadjusted, rank probably closer to 55th wettest. Also 1840 has been given a provisional snowfall of 144.0 cm which is based on the most likely correlations with temperatures in the winter months. It is to be regarded as quite approximate and is there mostly to fill out the table and keep better known values in appropriate ranks.

Monthly precipitation (mm) rankings The monthly precip values from 1843 to 1962 are based on 10:1 ratios for snowfall (10 cm snow = 10 mm precip). From 1963 to 2017 they are based on rainfall plus liquid equivalent of snowfall which continued to average close to 10:1 but varied from year to year in a range of about 8:1 to 12:1. Since Nov 2017 the snowfalls have been estimated and are once again combined with rainfall at the 10:1 ratio. June to September in this table is identical to the rankings for rainfall as there was no measurable snow in those months. Values for precip from March 1840 to December 1842 (where snow may have fallen) are based on estimates of snow and these estimates do not appear in the snowfall ranking tables. The winter of 1841-42 was rainy and quite mild so the snowfall amounts estimated for that winter are low. No additions are made for March or April 1840. The winter of 1840-41 was a more average winter and near average amounts have been added to those months (Nov 1840 to Apr 1841). The last two months of 1842 were rather cold and generous amounts of snow have been added to the rainfalls reported there. No rainfalls were reported from Oct 1844 to Mar 1845. These months appear as in the rainfall rankings, with estimates from weather map and other reconstructions, and these estimates are now ranked and appear in positions consistent with these estimates. August 1844 has only a partial monthly total from data 13th to 31st but this is shown in the table with an estimated value and asterisk with note below the table. Nov 1989 may also have had slightly more precip than shown in the source tables due to a probable data entry error on Nov 20, 1989. (dry) RANK_Jan _amt __ Feb _amt __ Mar _amt __ Apr _ amt __ May _amt __ Jun _amt 01 __1872_15.5 __ 1877_ 7.4 __ 1962_10.7__ 1881 _ 2.5__ 1920_ 9.9 __ 1949_ 1.5 ___ 184 wettest 02 __1921_17.0 __ 1895_10.2__ 1905_13.0__ 1848_13.7__ 1949_10.4__ 1864_14.7 __ 183 03 __1981_20.1 __ 1969_18.3__ 1981_16.4__ 1896_19.5__ 2005_11.6__ 1988_16.6 __ 182 04 __1963_22.4 __ 1980_19.6__ 1910_16.8__ 1879_22.4__ 1934_11.9__ 1899_17.0 __ 181 etc 05 __1944_25.7 __ 1963_19.8__ 1892_19.6__ 1935_24.1__ 1891_13.5__ 1873_17.5 06 __1853_26.4 __ 1906_20.3__ 1924_19.8__ 1884_24.4__ 1850_14.0__ 1895_19.1 07 __1919_26.4 __ 1978_20.9__ 1915_21.3__ 1946_24.4__ 1928_18.3__ 1959_19.8 08 __1961_26.9 __ 1907_21.8__ 2000_21.6__ 1872_25.1__ 1936_18.3__ 1963_21.1 09 __2000_28.4 __ 1917_22.9__ 2013_22.3__ 1882_26.2__ 1887_20.6__ 1978_22.0 10 __1988_30.0 __ 1995_23.0__ 2015_23.1__ 1927_26.2__ 2021_20.7__ 1867_22.6 11 __1879_30.5 __ 1934_23.6__ 2018_23.3__ 1997_27.2__ 1888_21.8__ 1877_22.9 12 __1986_31.6 __ 1989_24.2__ 1895_23.6__ 1971_27.9__ 1954_21.8__ 1932_25.4 13 __2021_32.2 __ 1856_24.6__ 1858_24.1__ 2010_29.3__ 2016_24.8__ 1862_26.2 14 __2001_32.6 __ 1947_25.4__ 1889_25.1__ 1949_30.5__ 1977_25.0__ 1910_27.4 15 __2010_32.9 __ 1873_26.4__ 1958_25.7__ 1930_31.2__ 1900_25.4__ 1894_27.7 16 __1856_34.5 __ 1923_26.9__ 2005_26.4__ 1968_31.5__ 1842_26.2__ 1952_27.7 17 __1877_34.8 __ 1970_26.9__ 1988_26.8__ 1892_32.0__ 1950_26.4__ 1896_28.2 18 __1989_34.8 __ 1977_27.0__ 1860_29.0__ 1915_33.0__ 1913_26.7__ 2005_29.0 19 __1922_35.1 __ 1872_27.4__ 1967_29.0__ 1941_33.0__ 1958_27.2__ 1983_29.6 20 __1970_35.1 __ 1953_27.7__ 1990_30.4__ 1860_33.5__ 1971_27.2__ 2007_30.3 21 __1973_35.3 __ 1987_28.2__ 2014_30.7__ 1962_33.8__ 1933_28.4__ 1909_30.7 22 __2015_36.4 __ 1994_28.2__ 1885_31.0__ 1985_33.8__ 2023_28.6__ 1994_33.6 23 __1958_36.8 __ 1991_28.6__ 1999_31.0__ 1894_34.0__ 1852_29.0__ 1942_33.8 24 __1868_37.1 __ 1931_28.7__ 1935_31.8__ 1925_34.3__ 1962_29.0__ 1915_34.0 25 __2011_37.9 __ 2004_29.4__ 1946_32.0__ 1841_34.5r__1870_29.4__ 1913_34.5 26 __1934_38.6 __ 2007_29.6__ 1847_32.5__ 1888_35.1__ 1925_31.0__ 1991_35.0 27 __1892_39.4 __ 1913_29.7__ 1992_33.0__ 1918_35.8__ 1951_31.0__ 1992_35.4 28 __1983_39.8 __ 1979_31.6__ 1894_34.0__ 1905_36.3__ 1879_32.3__ 1970_35.6 29 __1858_39.9 __ 1999_32.8__ 1957_34.0__ 1846_36.6__ 1926_32.8__ 2016_35.7 30 __1866_39.9 __ 2024_32.9__ 1969_35.3__ 1989_37.6__ 1877_34.5__ 1955_36.3 31 __1927_39.9 __ 1859_33.0__ 2012_36.0__ 1875_38.1__ 1862_36.8__ 1929_36.8 32 __1948_39.9 __ 2012_34.1__ 1857_37.3__ 1895_38.6__ 1922_37.1__ 1854_37.8 33 __1985_40.7 __ 1864_34.3__ 1890_37.6__ 1844_38.9__ 1988_37.2__ 1938_37.8 34 __1860_40.9 __ 1921_34.3__ 1937_37.6__ 1868_39.1__ 1939_37.8__ 1965_37.8 35 __1933_41.1 __ 1841_e35.0_ 1995_37.8__ 2001_39.4__ 2010_38.0__ 1911_38.6 36 __1938_41.4 __ 1875_35.1__ 1989_38.3__ 2007_39.4 _ 1874_38.1__ 1841_39.1 37 __1971_42.2 __ 1941_35.6__ 1887_38.4__ 1911_39.9__ 1914_38.4__ 1853_39.9 38 __1894_42.4 __ 1905_36.3__ 2003_38.4__ 1958_39.9__ 1959_39.4__ 1941_40.1 39 __1972_42.7 __ 1992_36.4__ 1908_39.1__ 1889_40.4__ 1843_39.9__ 1876_40.4 40 __1992_43.0 __ 2002_36.4__ 2001_40.4__ 1906_40.9__ 1915_40.9__ 1956_41.4 41 __1991_43.8 __ 1844_36.6__ 1932_40.9__ 2012_40.9__ 1965_41.1__ 1985_41.8 42 __1980_44.4 __ 1901_36.6__ 1941_40.9__ 1887_41.1__ 1964_41.7__ 1863_43.2 43 __1906_44.5 __ 1929_37.8__ 1856_41.1__ 1899_41.1__ 2012_41.8__ 1924_44.2 44 __2016_44.7 __ 1968_37.8__ 1938_41.7__ 1866_42.7__ 1935_43.2__ 1969_44.2 45 __1990_44.8 __ 1902_38.1__ 1851_41.9__ 1858_42.9__ 1903_45.7__ 1912_44.5 46 __1850_45.2 __ 1966_38.1__ 1874_41.9__ 1898_43.2__ 2014_46.9__ 1964_44.5 47 __2002_45.2 __ 1964_38.6__ 2021_42.2__ 1942_43.9__ 1860_47.0__ 2004_44.6 48 __1953_45.5 __ 1940_39.1__ 1933_43.9__ 1938_44.5__ 1990_ 47.0__ 1979_45.2 49 __1945_45.7 __ 1982_39.2__ 1993_44.4__ 2023_44.8 __ 1972_47.8__ 1953_45.5 50 __1880_46.0 __ 2010_39.2__ 1996_44.4__ 1900_46.5__ 2023_47.9__ 1971_45.5 51 __2014_46.2 __ 2021_39.4__ 1849_45.0__ 1876_46.7__ 1921_48.0__ 1874_45.7 52 __2007_47.2 __ 1920_40.1__ 1853_45.5__ 1981_47.2__ 1931_48.0__ 1875_46.5 53 __1869_47.8 __ 1973_40.4__ 2007_45.6__ 1931_48.3__ 1980_48.1__ 1893_46.5 54 __1956_47.8 __ 1933_41.1__ 1879_46.2__ 1998_48.6__ 1902_48.3__ 1933_46.7 55 __1955_48.5 __ 2015_41.6__ 1863_46.5__ 1914_48.8__ 1907_49.0__1848_47.2 56 __1984_48.7 __ 1912_42.4__ 1903_46.5__ 1982_49.1__ 1872_49.3__ 1878_48.5 57 __1865_48.8 __ 1952_42.4__ 1970_46.5__ 1986_49.4__ 2015_50.1__ 1939_48.5 58 __1897_48.8 __ 1888_42.7__ 1960_47.0__ 1948_49.8__ 1966_50.3__ 1886_48.8 59 __1888_49.0 __ 2011_42.7__ 1850_ 47.5__ 1966_50.0__ 1845_50.8__ 1846_49.3 60 __1900_49.3 __ 1928_42.9__ 2017_47.7__ 1999_51.0__ 1911_51.1__1898_49.5 61 __1940_49.8 __ 1882_43.7__ 1978_48.7__ 2008_52.7__ 1847_52.3__ 1865_51.1 62 __2022_50.1 __ 1974_43.7__ 1971_48.8__ 1907_53.1__ 2007_53.1__ 2020_51.2 63 __1925_50.8 __ 1899_43.9__ 1841_49.5e_ 1890_53.8__ 2018_53.1__ 1849_51.3 64 __1882_51.1 __ 1996_44.2__ 1912_50.0__ 1952_53.8__ 2020_53.6__ 1946_52.1 65 __1854_51.6 __ 1983_45.9__ 1979_50.3__ 1973_53.8__ 1938_54.6__ 1901_52.6 66 __1975_52.1 __ 1885_46.2__ 1840_51.1e_ 2021_54.5__ 1873_56.1__ 2011_52.8 67 __1851_52.3 __ 1848_47.2__ 1864_51.1__ 1897_54.6__ 1970_56.1__ 1925_53.3 68 __1911_53.1 __ 1914_47.5__ 2004_51.2__ 1870_54.9__ 1881_56.6__ 1984_53.7 69 __1849_53.3 __ 1993_47.6__ 1918_51.6__ 1902_55.1__ 1885_57.4__ 1907_53.8 70 __1942_53.3 __ 2000_47.6__ 1893_51.8__ 1950_55.9__ 1993_57.8__ 2002_53.8 71 __1881_54.1 __ 1998_47.8__ 1911_52.1__ 1855_56.4__ 1884_57.9__ 1921_54.6 72 __1936_54.4 __ 1967_48.0__ 2006_52.8__ 2020_56.5__ 1941_57.9__ 1860_54.9 73 __1974_54.9 __ 1919_48.5__ 1921_53.6__ 1987_56.6__ 1978_58.3__ 1931_54.9 74 __1857_55.4 __ 1843_48.8__ 1882_54.1__ 1990_56.7__ 1871_58.4__ 1914_55.1 75 __2003_55.6 __ 1942_48.8__ 1907_54.1__ 2016_56.8__ 1987_58.4__ 1995_55.2 76 __1977_57.0 __ 1958_48.8__ 1949_54.9__ 1862_57.9__ 1895_58.7__ 1958_55.6 77 __1939_57.2 __ 1879_50.5__ 1994_55.0__ 1877_57.9__ 1898_58.7__ 1997_55.8 78 __1876_57.9 __ 1986_51.4__ 1974_55.1__ 1891_58.7__ 2008_58.7__ 1884_56.1 79 __1928_58.2 __ 1927_51.8__ 1880_55.6__ 1923_58.9__ 2009_59.0__ 1950_56.4 80 __1969_58.2 __ 1880_52.1__ 1846_55.9__ 1908_59.2__ 1998_59.2__ 1868_56.6 81 __1918_58.4 __ 1956_52.1__ 1965_55.9__ 1874_59.4__ 1841_59.4__ 2001_57.4 82 __1954_59.2 __ 1955_52.8__ 2023_55.9__ 1861_59.7__ 1991_60.2__ 1975_58.7 83 __2018_59.8 __ 1911_53.8__ 1928_56.1__ 1972_59.7__ 1886_62.0__ 1861_59.2 84 __1904_60.7 __ 1976_54.4__ 1940_56.9__ 1988_60.2__ 1896_62.2__ 1981_59.6 85 __1926_61.0 __ 1915_54.6__ 1927_57.4__ 1863_60.7__ 1997_62.4__ 2018_60.2 86 __2019_61.4 __ 1849_54.9__ 1950_58.2__ 1851_62.0__ 1848_63.5__ 2023_60.9 87 __1920_61.5 __ 1944_55.4__ 1968_58.4__ 1976_62.7__ 1967_63.5__ 1966_61.2 88 __1951_61.5 __ 1937_56.1__ 1920_58.7__ 1912_63.0__ 1906_63.8__ 1900_61.7 89 __1883_62.2 __ 1951_56.4__ 1872_59.2__ 1978_63.2__ 1955_65.5__ 1930_61.7 90 __1987_62.2 __ 1945_56.6__ 1917_59.2__ 1953_63.8__ 1878_66.0__ 1960_61.7 91 __1901_62.7 __ 2016_57.0__ 1966_59.4__ 2006_63.8__ 1890_66.5__ 1927_64.0 92 __1908_63.8 __ 1894_57.2__ 1883_59.9__ 1883_64.5__ 1982_66.5__ 1999_64.8 92 __1916_63.8 __ 1852_57.4__ 1984_60.3__ 1924_64.8__ 1948_67.1__ 2009_65.2 91 __1964_64.0 __ 1892_57.7__ 1898_61.2__ 1933_64.8__ 1979_67.2__ 1881_65.3 90 __2017_64.5 __ 1930_57.9__ 2002_61.2__ 1928_65.5__ 1918_67.3__ 1962_65.8 89 __1946_64.8 __ 2014_58.0__ 1986_61.4__ 1940_65.5__ 1961_67.3__ 1882_67.1 88 __1976_65.0 __ 1853_58.4__ 1914_61.5__ 1984_66.0__ 1855_67.6__ 1847_67.3 87 __1994_65.0 __ 1871_59.4__ 1987_61.9__ 1934_66.3__ 1910_69.9__ 1887_67.6 86 __1842_65.1e _ 1897_59.4__ 2010_62.0__ 1878_66.5__ 1917_70.1__ 1851_69.1 85 __1941_65.5 __ 1943_59.4__ 1869_63.2__ 1932_66.5__ 1930_70.4__ 1919_69.1 84 __1902_66.0 __ 2003_59.4__ 1896_63.5__ 1859_67.8__ 1869_71.4__ 1990_69.2 83 __1931_66.5 __ 1889_60.5__ 1902_64.0__ 1964_67.8__ 1986_71.6__ 1866_69.3 82 __1962_66.8 __ 1935_60.7__ 1884_64.8__ 2003_69.2__ 1981_72.2__ 1934_69.9 81 __2012_67.2 __ 1957_61.7__ 1906_64.8__ 1853_69.6__ 1866_72.4__ 1987_70.2 80 __1966_67.3 __ 1881_62.0__ 1948_65.5__ 1963_70.6__ 1969_72.6__ 1904_70.4 79 __1909_67.6 __ 2018_62.0 _1845^ (65.6)_ 1993_70.6__1937_73.7__ 1973_73.4 78 __1903_68.8 __ 2020_62.0__ 1947_65.8__ 2004_71.2__ 1963_73.9__ 1920_73.7 77 __2008_69.7 __ 1954_62.5__ 2019_67.2__ 1856_71.9__ 1992_74.6__ 1936_73.9 76 __2009_69.7 __ 1916_62.7__ 1866_67.3__ 1944_71.9__ 2006_75.3__ 1943_74.2 75 __1861_69.9 __ 1862_63.5__ 1934_67.8__ 1947_72.1__ 1975_76.5__ 1972_74.4 74 __1959_69.9 __ 1865_63.5__ 1854_69.1__ 1849_72.4__ 1851_76.7__ 1968_74.7 73 __2004_70.5 __ 1866_64.0__ 1955_69.1__ 1965_72.6__ 1897_76.7__ 1897_74.9 72 __1885_71.1 __ 1870_64.3__ 1916_69.6__ 1959_72.9__ 1985_76.8__ 1858_75.4 71 __1957_71.9 __ 1936_66.3__ 1901_69.9__ 1867_73.4__ 1957_77.0__ 1908_75.4 70 __2005_72.3 __ 1891_67.6__ 2020_69.9__ 1926_73.4__ 1995_77.2__ 1891_77.5 69 __1952_72.4 __ 1858_67.8__ 1909_70.4__ 1919_73.7__ 1889_80.3__ 2012_79.8 68 __1855_72.6 __ 2019_68.0__ 1888_71.4__ 1975_73.9__ 1932_81.0__ 2021_79.8 67 __1862_72.6 __ 1867_68.1__ 1931_71.6__ 1852_74.7__ 1927_81.5__ 1872_80.0 66 __1899_72.9 __ 2023_68.9__ 1953_72.1__ 1886_75.2__ 1876_82.0__ 1852_80.8 65 __1847_73.4 __ 2009_69.7__ 1861_72.4__ 1995_75.4__ 1905_82.0__ 1905_81.0 64 __1997_73.8 __ 1932_70.1__ 1925_72.6__ 1854_75.7__ 1989_82.4__ 1986_81.2 63 __1943_74.4 __ 1975_70.1__ 1926_73.7__ 1936_76.2__ 1867_82.6__ 2017_81.7 62 __1949_74.4 __ 1884_71.4__ 1904_74.2__ 2015_76.2__ 1952_82.6__ 1856_82.3 61 __1996_74.6 __ 1903_71.4__ 1952_74.2__ 1869_76.7__ 1899_83.6__ 1976_83.6 60 __1846_74.9 __ 1926_71.6__ 1961_74.2__ 1967_76.7__ 1875_83.8__ 1998_83.6 59 __1848_74.9 __ 1988_71.8__ 1982_74.2__ 1885_77.5__ 1947_85.9__ 1903_84.6 58 __1912_75.4 __ 1949_72.1__ 1897_75.4__ 1857_77.7__ 1863_86.1__ 2003_84.8 57 __1917_75.4 __ 1883_72.4__ 1959_75.4__ 1955_77.7__ 1976_86.1__ 1871_85.1 56 __2023_75.8 __ 1851_72.6__ 1886_76.5__ 1904_79.0__ 1861_87.6__ 1980_85.2 55 __1893_75.9 __ 1962_72.6__ 1891_77.0__ 1956_79.2__ 1859_87.6__ 1850_85.6 54 __1935_77.0 __ 2022_74.1__ 1975_77.7__ 1969_80.3__ 1892_88.6__ 1954_86.1 53 __1859_78.7 __ 1922_74.9__ 1868_78.5__ 1843_81.3__ 1901_88.6__ 1935_86.9 52 __1891_79.5 __ 1904_76.2__ 1923_78.7__ 1974_81.5__ 2004_89.0__ 1926_88.1 51 __1878_80.3 __ 2017_76.2__ 1939_80.0__ 1960_81.8__ 1973_89.2__ 1844_89.9 50 __1923_80.3 __ 1878_76.7__ 1963_80.0__ 1977_82.3__ 1990_89.2__ 2006_89.9 49 __1863_81.3 __ 1874_77.7__ 1848_80.5__ 2019_82.3__ 1994_90.4__ 1977_90.2 48 __1887_81.5 __ 1898_77.7__ 1997_80.8__ 1916_82.6__ 1882_91.2__ 1880_90.4 47 __1875_82.0 __ 1886_78.2__ 1983_80.9__ 1920_82.8__ 1996_92.4__ 1889_90.7 46 __1905_83.3 __ 1972_78.5__ 1843_81.3__ 1943_82.8__ 2002_94.0__ 1902_90.7 45 __1884_83.8 __ 2006_79.4__ 1919_81.3__ 1847_83.3__ 1923_94.2__ 1957_92.2 44 __1930_84.6 __ 1981_80.2__ 1930_81.3__ 2000_84.2__ 1929_95.8__ 1937_92.5 43 __2006_84.8 __ 1948_80.3__ 1922_81.5__ 1970_85.3__ 1904_96.5__ 1940_94.7 42 __1967_85.3 __ 1909_80.8__ 2011_82.2__ 1917_85.6__ 1909_96.5__ 2014_95.6 41 __1890_85.6 __ 1910_81.8__ 2009_83.8__ 1957_86.4__ 1944_97.5__ 1945_97.8 40 __1965_85.6 __ 1860_82.0__ 1855_84.1__ 1939_87.1__ 1893_98.0__ 1906_98.3 39 __1852_85.9 __ 1924_83.1__ 1944_84.3__ 1840_87.9r__2019_99.9__1918_99.8 38 __1914_87.4 __ 1847_83.3__ 1977_86.4__ 1845_87.9__1984_100.0__ 1951_99.8 37 __1982_87.8 __ 1854_83.3__ 1900_87.6__ 1871_87.9__2013_100.4__ 1928_100.8 36 __1889_88.4 __ 1946_83.3__ 2008_88.4__ 1880_88.1__1968_101.1__1888_101.3 35 __1910_89.2 __ 1868_84.3__ 1878_88.6__ 1983_89.1__1865_102.4__1948_103.1 34 __1841_89.6e _ 1985_86.1__ 1964_88.9__ 1913_89.2__1880_102.4__2023_103.2 33 __2024_89.6 __ 1961_86.9__ 1929_89.9__ 1994_91.0__1864_104.1__2008_104.2 32 __1978_90.6 __ 1984_87.7__ 1954_90.4__ 1922_91.9__1840_105.7__1859_104.4 31 __2013_91.6 __ 1890_88.4__ 1842_91.9e_ 2011_93.9__1857_106.2__1855_104.6 30 __1898_92.7 __ 1971_89.2__ 1881_93.2__ 1903_95.5__1946_107.4__1989_105.8 29 __1993_95.4 __ 1959_89.7__ 1972_96.3__ 1901_100.8__1883_109.2__2019_106.0 28 __1845^_(95.8) _1850_90.4__2016_98.5__ 1873_101.1__1953_110.7__1885_106.7 27 __1864_96.5 __ 1925_91.4__ 1844_98.8__ 1842_101.3r_ 1846_111.5__1923_107.7 26 __1896_99.8 __ 2005_91.8__ 1956_98.8__ 1864_101.9__1924_112.3__1916_109.5 25 __1947_99.8 __ 1938_91.9__ 1875_99.8__ 1937_102.1__1853_113.5__1961_109.5 24 _ 1960_101.1 _ 1939_91.9__ 1942_100.1_ 2014_102.9__1943_116.3__1944_109.7 23 _ 1950_101.3 _ 1893_92.2 __ 2023_100.6 _1954_103.6__2011_116.4 _1845_110.7 22 _ 1915_102.4 _ 1863_93.0 __ 1867_100.8 _1961_104.4__1983_117.2 _1869_112.0 21 _ 1874_102.6 _ 1960_94.0 __ 1998_101.2 _ 2023_105.5__1856_117.3__2013_112.6 20 _ 1907_104.6 _ 1997_94.2 __ 1936_103.4 _ 2005_105.9__1908_117.9__1879_114.3 19 _ 1968_104.6 _ 1990_94.4__ 1871_103.6 _ 1865_106.2__1854_118.9__1947_115.1 18 _ 1998_106.0 _ 1908_96.0__ 1913_103.6 _ 1996 106.2__1956_119.4__1843_117.1 17 _ 1867_106.7 _ 1861_96.3 __ 1980_103.8 _ 1945_107.2__1940_127.3__1840_123.4 16 _ 1913_111.0 _ 1855_100.3__ 1859_106.4 _ 1992_110.4__2001_127.8__1890_124.2 15 _ 1979_112.5 _ 1896_100.3 _ 1985_107.7 _ 2013_110.4__1849_130.6__1922_125.0 14 _ 1895_118.1 _ 1950_100.3 _ 1873_108.7 _ 2002_111.2__1919_130.8__1993_125.0 13 _ 1924_124.2 _ 1842_101.9e_ 1899_108.7 _ 2017_111.2__1960_134.4__1996_126.2 12 _ 2020_126.6 _ 1845^_(102.1)_1951_109.7 _ 1951_115.3__2000_135.2__1883_126.5 11 _ 1873_127.8 _ 1918_103.9 _ 1877_110.7 _ 1980_117.2__2003_135.8__ 1917_127.3 10 _ 1999_130.2 _ 1965_104.6 _ 1943_111.0 _ 1979_118.6__1945_137.2__1982_129.4 09 _ 1937_131.6 _ 2001_105.0 _ 1862_112.3 _ 1850_122.9__1916_142.2__1857_129.8 08 _ 1871_132.6 _ 1869_105.2 _ 1945_116.3 _ 2009_123.8__1974_144.3__1974_133.6 07 _ 1995_138.4 _ 1857_107.7 _ 1991_117.6 _ 1893_124.7__1844_144.8__1842_145.8 06 _ 1929_138.7 _ 1887_109.0 _ 1865_125.7 _ 1921_124.7__1912_150.4__1967_146.1 05 _ 1844_139.7 _ 1876_109.5 _ 1852_128.0 _ 1910_128.3__1858_162.1__1892_147.6 04 _ 1886_140.2 _ 1846_117.1 _ 1976_140.7 _ 1991_133.8__2017_162.3__2010_157.0 03 _ 1870_141.0 _ 1900_132.3 _ 1876_143.8 _ 1909_137.4__1942_172.5__2000_162.2 02 _ 1843_145.3 _ 2008_133.4 _ 1973_149.1 _ 2018_146.4__1868_195.1__2015_183.9 01 _ 1932_173.7 _ 2013_144.6 _ 1870_177.8 _ 1929_154.7__1894_238.5__1870_205.5 WET _______________________ Jan 2024 entered at 89.6 mm (t33rd wettest) Feb 2024 entered at 32.7 mm (29th driest) Mar 2023 entered at 100.6 mm (23rd wettest) Apr 2023 entered at 105.5 mm (21st wettest) May 2023 entered at 47.9 mm (50th driest) June 2023 entered at 103.2 mm (34th wettest) ------------------------ Mar 2024 will enter at 53.3 mm (73rd driest) Apr 2024 will enter at 153.3 mm (2nd wettest) - ========================================================= - (continued -- July to December precip rankings) DRY RANK_ Jul _amt __ Aug _amt __ Sep _amt __ Oct _ amt __ Nov _amt __ Dec _amt 01 __1954__7.4 __ 1876__Tr ___1844_ 5.8 __ 1963 _ 9.1__ 1904_ 2.8 __ 1845_11.9 ___ 184 wettest 02 __1916__9.1 __ 1899_ 6.9 __ 1960_ 7.9 __ 1944_13.2__ 1939_ 8.1 __ 1943_13.2 ___ 183 03 __1868_ 13.2__ 1874_ 9.7 __ 1897_10.2__ 1961_13.5__ 1976_12.4__ 1877_13.5 ___ 182 etc 04 __1887_ 16.8__ 1894_ 9.7 __ 1964_10.2__ 1901_14.7__ 1872_14.2__ 1888_21.1 05 __1898_ 17.8__ 1889_10.9__ 1903_10.4__ 1966_15.0__ 1894_15.5__ 1900_21.1 06 __2015_ 18.3__ 1935_11.4__ 1877_10.7__ 1924_15.7__ 1930_17.3__ 1960_21.6 07 __1983_ 19.3__ 2021_11.6__ 2023_11.9__ 1952_17.3__ 1870_22.9__ 1896_24.1 08 __1936_ 19.6__ 1854_11.9__ 1969_16.5__ 2000_20.0__ 1924_24.1__ 1919_25.4 09 __1966_ 20.8__ 1973_14.2__ 1917_16.8__ 1953_21.3__ 1899_25.9__ 1913_26.4 10 __1888_ 21.8__ 2002_16.0__ 1858_19.1__ 1853_22.6__ 2012_26.8__ 1950_26.9 11 __2011_ 21.9__ 1848_22.4__ 1929_19.8__ 1984_22.8__ 1865_27.7__ 1958_27.2 12 __1853_ 23.6__ 1930_22.6__ 1950_19.8__ 1998_22.8__ 1996_30.8__ 1993_27.6 13 __1914_ 25.4__ 1948_22.6__ 1941_21.3__ 2004_22.8__ 1903_32.3__ 1880_28.4 14 __1899_ 25.9__ 2017_24.4__ 1881_23.1__ 1856_23.1__ 1917_32.3__ 1925_29.2 15 __1882_ 27.2__ 1920_25.7__ 1913_24.9__ 1859_24.1__ 1936_33.0__ 2014_29.4 16 __1856_ 29.2__ 1934_25.7__ 2017_26.9__ 1922_24.4__ 2015_33.1__ 1874_29.5 17 __1974_ 29.5__ 1898_27.4__ 1927_28.2__ 1883_24.6__ 1854_33.8__ 1930_29.5 18 __1959_ 31.2__ 1907_27.7__ 1955_29.7__ 1908_25.7__ 2013_36.4__ 1840_30.0e 19 __1871_ 32.3__ 1896_29.0__ 1887_30.7__ 1938_26.2__ 1918_36.8__ 1928_30.7 20 __1948_ 33.3__ 1942_29.5__ 1867_31.2__ 1895_26.4__ 1921_36.8__ 1861_31.5 21 __1864_ 34.3__ 2007_29.8__ 2007_31.5__ 1857_27.4__ 1938_36.8__ 1892_31.5 22 __1999_ 35.4__ 1960_31.2__ 1863_31.8__ 1956_28.2__ 2009_37.0__ 1939_31.5 23 __1997_ 37.8__ 1976_31.2__ 1893_32.0__ 1879_28.4__ 1922_37.6__ 2002_31.7 24 __1933_ 38.9__ 1998_32.0__ 1921_32.3__ 1947_28.4__ 2019_38.2__ 1997_34.2 25 __1934_ 40.1__ 2006_32.4__ 1871_33.0__ 1974_28.4__ 1998_38.6__ 2010_34.7 26 __1894_ 40.9__ 1909_33.8__ 1908_33.0__ 1909_29.0__ 1840_40.0e_ 1999_34.8 27 __1940_ 41.1__ 1959_34.3__ 1995_33.2__ 1882_29.2__ 1956_40.6__ 1989_35.2 28 __1978_ 41.2__ 1851_35.1__ 2004_33.2__ 2016_29.4__ 2021 40.8__ 1995_35.8 29 __1968_ 41.9__ 2000_35.2__ 2009_33.4__ 1869_30.5__ 1908 40.9__ 1926_36.6 30 __2000_ 42.0__ 1944_35.6__ 1933_34.3__ 1871_30.5__ 1845 41.1__ 1904_36.8 31 __1923_ 43.7__ 1949_36.3__ 1937_35.3__ 2022_32.0__ 1919_41.4__ 1985_36.8 32 __1939_ 43.7__ 1962_36.3__ 2019_35.6__ 1846_32.8__ 1901_41.9__ 1883_37.1 33 __1918_ 43.9__ 1922_37.3__ 1943_35.8__ 1958_32.8__ 1916_41.9__ 2017_37.3 34 __1984_ 44.0__ 1927_37.3__ 1900_36.6__ 1994_33.4__ 1964_42.2__ 1941_37.8 35 __2005_ 44.4__ 1855_37.6__ 1971_36.8__ 1934_33.8__ 1906_42.9__ 1868_39.6 36 __1926_ 45.0__ 2003_38.5__ 1951_37.3__ 1997_34.2__ 1902_43.2__ 1952_42.2 37 __1875_ 46.0__ 1881_38.6__ 1849_38.1__ 1841_34.3__ 1980_43.9__ 1961_42.2 38 __1989_ 46.0__ 1980_39.6__ 1961_38.1__ 1892_34.8__ 2016_44.2__ 1937_42.9 39 __1881_ 47.0__ 1868_39.9__ 1874_39.4__ 1874_36.1__ 1943_44.5__ 1988_43.2 40 __1985_ 47.2__ 1916_39.9__ 1914_39.4__ 1982_36.1__ 1947_44.7__ 2015_43.5 41 __1982_ 48.1__ 1957_40.6__ 1952_39.4__ 1876_36.8__ 1875_45.2__ 1922_43.9 42 __1870_ 48.3__ 1951_41.4__ 1946_39.6__ 1897_36.8__ 1905_45.2__ 1910_44.2 43 __1848_ 48.5__ 1856_42.9__ 1979_40.0__ 1884_38.1__ 1937_45.7__ 1976_44.2 44 __1873_ 49.0__ 1993_43.6__ 1963_42.2__ 1978_38.2__ 1975_45.7__ 1914_44.5 45 __1912_ 49.5__ 1845_43.9__ 1916_42.4__ 1975_38.4__ 1953_46.0__ 1998_44.8 46 __2003_ 49.7__ 2014_44.4__ 1891_43.4__ 2002_39.0__ 1971_47.2__ 1974_45.2 47 __2001_ 49.8__ 1936_44.5__ 1905_43.9__ 1854_39.4__ 1990_47.6__ 1849_46.0 48 __1995_ 50.2__ 1967_44.5__ 1983_44.3__ 1914_39.4__ 1970_47.8__ 1953_46.2 49 __1867_ 50.3__ 1846_45.5__ 1850_44.5__ 1848_39.9__ 1915_48.0__ 1843_47.0 50 __2016_ 51.1__ 2023_45.9__ 1947_45.5__ 1935_39.9__ 1944_49.0__ 1912_47.0 51 __1907_ 51.6__ 1883_46.5__ 1890_47.0__ 1868_40.1__ 1867_49.3__ 2001_47.4 52 __1994_ 52.4__ 1906_46.5__ 1956_47.2__ 1887_41.4__ 1954_49.3__ 1847_47.5 53 __1845_ 52.8__ 1952_47.0__ 1919_48.5__ 2023_41.8__ 2014_49.7__ 1890_49.3 54 __1957_ 53.3__ 1996_47.4__ 2020_48.5__ 1860_41.9__ 1946_50.3__ 1885_50.3 55 __1885_ 53.6__ 1875_47.8__ 1954_49.0__ 1923_42.2__ 1852_50.5__ 1903_50.8 56 __1884_ 53.8__ 1946_48.5__ 1998_49.0__ 2008_42.5__ 1967_51.1__ 1981_50.8 57 __1998_ 54.8__ 1989_48.6__ 1909_49.8__ 1891_43.4__ 1955_51.3__ 1886_51.1 58 __1891_ 55.1__ 2015_48.6__ 1860_50.0__ 1851_43.7__ 1949_51.6__ 1916_51.6 59 __1896_ 55.6__ 1873_49.0__ 1840_50.4__ 1940_44.5__ 1986_52.0__ 1963_52.1 60 __2018_ 56.8__ 1929_49.3__ 1920_50.8__ 1845_45.0__ 2023_52.1__ 1908_52.3 61 __1893_ 57.7__ 1941_49.3__ 1990_51.2__ 2005_46.0__ 1960_52.3__ 1935_52.6 62 __2017_ 57.8__ 2004_49.4__ 1889_52.8__ 1858_46.2__ 1981_52.6__ 1846_52.8 63 __1872_ 58.4__ 1979_49.8__ 1997_52.8__ 1949_46.2__ 2017_53.2__ 1894_53.8 64 __2022_ 58.8__ 2001_49.8__ 1882_53.1__ 1968_46.2__ 1874_53.6__ 1851_54.9 65 __1971_ 59.9__ 1961_50.3__ 1970_53.1__ 1976_46.2__ 2000_54.2__ 1962_55.1 66 __1886_ 62.7__ 1953_50.5__ 1974_53.1__ 1987_47.0__ 1882_54.6__1844^_55.2 67 __1865_ 63.0__ 1887_50.8__ 1944_54.1__ 1930_47.5__ 1885_54.6__ 2005_55.2 68 __1981_ 63.0__ 1865_51.1__ 1994_54.8__ 1840_48.0__ 1957_55.1__ 1994_56.0 69 __1963_ 63.5__ 1938_52.3__ 1980_55.2__ 1889_48.0__ 1848_55.4__ 1902_56.4 70 __1892_ 63.8__ 1969_52.3__ 1931_55.4__ 1939_48.0__ 1892_55.4__ 1938_56.6 71 __1895_ 63.8__ 1921_52.6__ 1973_55.6__ 2003_48.4__ 1941_56.6__ 1945_57.2 72 __1958_ 63.8__ 1925_52.8__ 1948_56.4__ 1964_48.8__ 1844^_57.2__1842_57.4e 73 __1879_ 66.3__ 1988_53.2__ 2002_58.6__ 2017_49.2__ 1884_58.7__ 1865_57.4 74 __1859_ 66.5__ 1931_53.3__ 1965_58.7__ 1907_50.3__ 1856_59.9__ 1991_57.8 75 __1911_ 66.5__ 2016_53.6__ 1862_60.2__ 1931_50.5__ 1945_59.9__ 1905_57.9 76 __1938_ 66.5__ 2019_54.0__ 1883_60.5__ 1951_50.5__ 1961_60.2__ 1929_58.2 77 __1861_ 67.6__ 1884_54.1__ 2022_60.8__ 1867_50.8__ 1912_60.7__ 1980_59.3 78 __1921_ 67.6__ 1879_55.1__ 2015_61.0__ 1971_51.1__ 1978_61.1__ 2020_59.3 79 __1913_ 67.8__ 1919_55.1__ 2013_61.6__ 1861_51.3__ 1931_62.0__ 2021_59.3 80 __1965_ 68.6__ 1945_55.1__ 1966_62.0__ 2007_51.4__ 1873_62.7__ 1924_59.4 81 __1877_ 69.3__ 1847_55.4__ 1895_62.5__ 2020_53.0__ 1883_62.7__ 2006_59.6 82 __1900_ 69.6__ 1863_56.6__ 1865_62.7__ 1850_53.1__ 1974_63.8__ 1871_59.9 83 __1990_ 69.6__ 1984_56.8__ 1876_62.7__ 1991_53.2__ 1991_63.8__ 1932_60.5 84 __1953_ 70.1__ 1987_57.2__ 2016_63.5__ 1900_54.1__ 1910_64.8__ 1947_60.7 85 __1955_ 70.4__ 1897_57.7__ 2018_63.5__ 1896_55.1__ 2020_66.1__ 1987_60.8 86 __2004_ 70.6__ 1913_57.9__ 1939_64.0__ 1932_55.1__ 1880_67.3__ 1917_61.0 87 __1975_ 71.6__ 1974_58.9__ 1864_64.3__ 1873_55.4__ 1886_67.3__ 1921_61.2 88 __1944_ 71.9__ 1947_59.9__ 1872_64.3__ 1915_55.6__ 1876_67.6__ 1955_61.5 89 __1987_ 73.6__ 1902_60.5__ 1985_64.6__ 1927_55.6__ 1942_68.8 __ 1954_61.7 90 __1846_ 73.7__ 1872_61.2__ 2000_65.2__ 1986_56.2__ 1988_68.8 __ 2018_62.1 91 __1973_ 73.7__ 1933_61.2__ 1911_65.3__ 1910_56.6__ 1853_69.1 __ 1965_62.5 92 __2019_ 73.7__ 1911_61.5__ 2008_66.2__ 1933_57.4__ 1984_69.8__ 1854_62.7 __ 91 __1937_ 74.2__ 1867_62.2__ 1993_67.0__ 1912_59.7__ 1862_69.9__ 1934_63.0 90 __1908_ 74.4__ 1943_62.2__ 1857_67.6__ 1894_60.2__ 2001_70.0__ 1984_63.1 89 __1945_ 74.4__ 1966_62.7__ 2005_67.6__ 1977_60.6__ 2022_70.0__ 1881_63.2 88 __1922_ 75.4__ 1842_63.5__ 1851_67.8__ 1985_61.0__ 1860_70.4__ 1956_63.8 87 __1943_ 76.5__ 1994_63.8__ 1923_67.8__ 1929_62.0__ 1994_71.0__ 1915_64.0 86 __1979_ 76.8__ 1882_64.0__ 2001_68.0__ 1936_62.2__ 1887_71.4__ 1946_64.0 85 __1842_ 77.5__ 2022_64.5__ 1991_68.8__ 1913_62.5__ 1914_72.4__ 1948_64.0 84 __1952_ 77.7__ 1853_65.8__ 1989_70.0__ 1904_63.0__ 2004_72.5__ 1992_64.0 83 __2020_ 78.2__ 1886_66.8__ 1898_70.9__ 1866_63.2__ 2010_72.8__ 1899_64.5 82 __1858_ 78.5__ 2011_66.9__ 1875_71.6__ 2018_63.4__ 1959_72.9__1898_64.8 81 __1930_ 78.7__ 1940_67.6__ 1930_71.9__ 1969_63.5__ 1962_72.9__ 1964_65.8 80 __1931_ 78.7__ 1965_67.8__ 1928_72.4__ 1957_64.3__ 1933_73.7__ 1978_66.8 79 __1969_ 78.7__ 1852_69.3__ 1936_73.7__ 1999_64.4__ 1997_73.8__ 2003_67.2 78 __1944_ 79.8__ 1900_69.9__ 2003_75.4__1863_64.5__ 1849_74.4__ 1909_67.3 77 __1949_ 79.8__ 1871_71.1__ 1879_75.7__ 1945_65.0__ 1850_75.2__ 2011_67.4 76 __2014_ 80.0__ 1908_71.9__ 1922_75.9__ 1960_65.3__ 1896_75.2__ 1969_68.6 75 __2007_ 80.4__ 1937_73.4__ 1976_76.2__ 1886_66.3__ 1972_75.2__ 1858_68.8 74 __1988_ 81.2__ 1840_73.9__ 1880_76.5__ 1925_66.8__ 1893_75.9__ 1860_69.1 73 __1919_ 81.3__ 1888_73.9__ 1873_76.7__ 1948_66.8__ 1969_76.2__ 2013_70.3 72 __1967_ 81.3__ 1978_74.8__ 1968_76.7__ 1877_67.1 __ 1898_76.7__ 1867_70.6 71 __2010_ 82.5__ 1861_76.2__ 2010_77.1__ 1855_67.6__ 1841_77.2e_ 1882_70.9 70 __1972_ 82.8__ 1895_76.7__ 1932_77.2__ 2010_68.0__ 1999_77.2__ 1906_71.6 69 __1889_ 83.1__ 1890_77.0__ 1901_77.5__ 1888_68.1__ 1979_78.6__ 1853_72.6 68 __1855_ 83.6__ 1963_77.2__ 1975_77.7__ 1870_68.8__ 1888_78.7__ 1911_72.6 67 __1876_ 83.6__ 1999_77.4__ 1967_79.0__ 1967_68.8__ 1934_78.7__ 1891_73.4 66 __1956_ 84.3__ 1910_77.7__ 1848_79.2__ 1937_69.9__ 1871_79.0__ 2016_73.8 65 __1874_ 85.1__ 1844_79.1*_ 1892_79.2__ 1862_70.4__ 1963_80.0__ 1933_73.9 64 __1847_ 85.3__ 2012_79.4__ 1988_79.2__ 1903_70.6__ 1993_80.4__ 1873_74.2 63 __1901_ 85.9__ 1877_80.5__ 1972_81.0__ 1902_70.9__ 1935_80.8__ 1927_74.4 62 __1906_ 86.6__ 2008_81.4__ 1884_81.3__ 1875_71.1__ 1847_81.0__ 1862_75.9 61 __1849_ 86.9__ 1991_83.6__ 1935_81.3__ 1918_72.4__ 2002_81.2__ 1931_76.2 60 __1980_ 87.0__ 1997_85.4__ 1984_81.3__ 2014_72.8__ 1866_81.3__ 1923_76.7 60 __2002_ 87.0__ 2005_86.8__ 1912_83.6__ 1942_73.4__ 2007_81.3__ 2023_76.9 59 __1863_ 87.6__ 1860_87.1__ 1888_83.8__ 1928_74.7__ 1965_82.0__ 1920_77.2 58 __1986_ 87.6__ 1870_87.4__ 1841_84.6__ 1979_75.5__ 1973_82.8__ 1949_77.5 57 __1909_ 88.4__ 1862_88.6__ 2006_84.6__ 1919_75.7__ 1881_83.1__ 2000_77.8 56 __2012_ 88.7__ 2010_90.0__1902_85.3__ 1996_75.8__ 1923_83.8__ 1982_78.8 55 __1857_ 88.9__ 2013_90.5__ 1949_86.9__ 1993_76.4__ 1948_83.8__ 1850_79.8 54 __1880_ 89.7__ 1923_90.9__ 2014_90.2__ 1992_77.4__ 1929_84.3__ 2019_80.0 53 __1932_ 90.4__ 1971_91.2__ 1859_90.4 __ 1943_78.7__ 1909_85.6__ 1918_81.3 52 __1917_ 91.2__ 1972_91.4__ 1861_92.2__ 1988_79.0__ 1952_88.4__ 2012_81.9 51 __1935_ 91.2__ 1903_93.2__ 1885_92.2__ 1962_79.8__ 1907_89.4__ 1884_82.8 50 __1993_ 91.6__ 1975_95.5__ 1852_92.7__ 1865_81.0__ 1891_90.4__ 1973_83.1 49 __1920_ 92.5__ 2020_96.7__ 1942_92.7__ 2009_81.1__ 1869_90.7__ 1957_83.3 48 __1851_ 92.7__ 1954_97.0__ 1906_93.2__ 1926_81.5__ 1889_90.7__ 1869_84.1 47 __1976_ 92.7__ 1950_98.3__ 1940_93.7__ 1980_81.6__ 1890_91.4__ 1970_84.6 46 __1946_ 93.0__ 1901_98.6__ 2011_94.7__ 1959_83.3__ 1958_91.4__ 1936_85.6 45 __1962_ 96.5__ 1970_98.6__ 1987_96.4__ 1872_83.6__ 1987_92.2__ 1887_86.6 44 __2023_ 98.2__ 1858_99.3__ 1953_96.8__ 1878_83.6_ 2008_92.2__ 1856_87.1 43 __1910_ 99.1__ 1885_99.8__ 1925_97.3__ 1864_85.1__ 2011_92.9__ 2004_87.4 42 __1925_ 99.3__ 1924_99.8__ 1886_97.5__ 1972_85.1__ 1863_93.5__ 1967_88.6 41 __1951_100.3__ 1912_101.1__ 1958_98.6__ 2015_86.0__ 1932_93.7__ 1875_89.2 40 _ 1991_101.2__1892_101.6__ 1959_99.8__1970_86.1__ 1989_93.8^__ 2009_90.1 39 _ 1992_101.6__1990_101.6__1999_100.6__ 1983_86.8__ 1920_94.2__1966_90.9 38 _ 1852_102.4__1859_101.9__1910_101.1__ 1946_87.1__ 1925_96.5__ 1901_91.7 37 _ 2021_103.4__1983_103.1__1938_101.1__ 1905_88.6__ 1911_97.3__ 1876_92.7 36 _ 1890_104.6__1918_105.4__1904_101.3__ 1880_89.9__ 1926_97.3__ 1897_93.0 35 _ 1924_106.2__1932_105.9__1869_102.4__ 1911_90.9__ 1913_97.5__ 1863_93.5 34 _ 1970_107.4__1939_105.9__1856_105.2__ 1893_91.7__ 2006_98.0__ 1951_95.3 33 _ 1950_110.0__1905_107.2__1924_107.4__ 1920_93.5__ 2005_99.2__ 1940_96.5 32 _ 1903_110.5__1958_108.0__1915_107.7__ 1941_95.0__ 1900_99.6__ 1968_96.5 31 _ 1860_110.7__1869_109.0__1934_107.7__ 1990_96.8__1878_100.1__ 1959_99.1 30 _ 1902_110.7__1992_109.8__1868_108.5__ 1885_97.0__1857_100.6__ 1971_100.3 29 _ 1960_111.3__1850_111.0__1982_112.6__ 1881_97.5__1951_100.6__1975_100.8 28 _ 1961_111.8__1880_111.5__1981_112.8__1916_100.1__1950_100.8__1870_102.1 27 _ 1929_112.5__1917_113.0__1992_113.0__1989_100.2__1968_100.8__1983_103.3 26 _ 1915_114.6__2009_113.3__1846_117.1__1950_100.6__1983_103.4__1944_103.4 25 _ 1843_117.1__1982_113.5__1918_118.1__2013_101.8__1897_106.4__ 1878_103.9 24 _ 1869_117.3__1866_114.3__2012_119.8__1843_103.4__1864_108.0__1857_104.9 23 _ 2009_119.5__1904_116.1__1907_121.9__2011_111.8__1928_108.2__1942_105.7 22 _ 1905_119.9__1985_118.0__1957_126.2__1847_112.3__1895_108.5__1872_106.4 21 _ 2006_120.8__1891_122.9__1896_129.5__1921_113.3__1858_109.0__1895_107.2 20 _ 2008_121.1__1843_123.4__1853_130.8__1906_114.3__1879_111.8__1986_108.1 19 _ 1941_122.2__1977_123.6__1978_131.0__1965_115.1__1982_112.0__1996_109.6 18 _ 1854_122.9__1849_126.5__1899_131.1__1844^_115.6__1846_114.6__1866_110.5 17 _ 1996_123.2__1928_126.7__1854_137.4__1899_115.8__1992_115.2__2008_110.9 16 _ 1964_126.0__1955_128.0__2021_138.6__2001_118.6__1927_115.3__1848_112.0 15 _ 1904_130.3__1864_129.3__1894_139.2__1917_121.7__2018_115.6__1972_112.8 14 _ 1897_133.4__1995_129.4__1855_143.0__1981_123.4__1851_115.8__1879_113.0 13 _ 1840_134.4__1914_132.3__1866_144.0__1955_125.2__1861_117.9__1893_117.1 12 _ 1850_134.4__1857_134.4__1926_145.3__1890_125.7__1843_119.9__1864_121.2 11 _ 1862_136.4__1964_137.7__1962_154.7__2012_127.2__1940_122.2__1859_121.4 10 _ 1866_137.9__1893_146.3__1845_156.7__2021_130.9__1855_124.5__1855_122.4 09 _ 1977_139.4__1956_150.9__1977_157.3__1995_131.2__1977_133.3__1889_124.5 08 _ 1883_141.7__1926_155.4__1945_158.5__1842_131.3__1859_133.9__1907_127.3 07 _ 1878_143.3__1841_156.7__1842_159.0__1852_134.6__2003_138.2__1977_127.7 06 _ 1928_143.3__1981_166.2__1847_169.7__1973_136.9__1842_141.9e_2022_127.9 05 _ 1947_143.3__1968_167.1__1870_173.0__2006_138.4__1868_142.2__1990_131.9 04 _ 1942_145.5__2018_169.5__1878_195.6__2019_141.2__1877_142.7__2007_133.7 03 _ 1927_149.1__1878_180.1__1996_202.4__1898_146.6__1995_143.0__1979_134.1 02 _ 2013_191.1__1986_191.7__ 1986_217.8__ 1849_151.9__1966_147.1__1852_152.7 01 _ 1841_206.8__1915_206.8__1843_248.2__1954_154.9__1985_186.2__1841_167.4 WET *1844 values are estimates. July 2023 entered the table at 44th wettest (98.2 mm). Aug 2023 entered the table at 50th driest (45.9 mm). Sep 2023 entered the table at 7th driest (11.9 mm). Oct 2023 entered the table at 53rd driest (41.8 mm). Nov 2023 entered the table at 60th driest (52.1 mm). Dec 2023 entered the table at 60th wettest (76.9 mm). - ============================================== - notes * Aug 1844 rainfall 13th to 31st (1st to 12th missing est by author at 28.0 +51.1 known for 13-31). ** Nov 1989 has probable data entry error (20th) 10-15 mm more than this may have fallen. _________________________________