Wettest Recorded Days

[MP-R]

As November is, on average, the wettest month for here anyway, I thought this might be an interesting thread, a bit of fun.

What are your wettest recorded days by month / or in order since you started making records of the weather. I started recording rainfall in 2000.

Here are mine by month:

JAN: 33.2mm (11th, 2008)

FEB: 24.4mm (25th, 2002)

MAR: 52.6mm (16th, 2008)

APR: 21.4mm (30th, 2002)

MAY: 35.4mm (13th, 2007)

JUN: 42.2mm (25th, 2007)

JUL: 47.6mm (04th, 2001)

AUG: 27.2mm (16th, 2004) / (25th, 2010)

SEP: 37.3mm (05th, 2008)

OCT: 36.3mm (30th, 2000)

NOV: 36.7mm (27th, 2009)

DEC: 35.2mm (13th, 2008)

Here are my top ten generally:

52.6mm - 16th March 2008

47.6mm - 04th July 2001

42.2mm - 25th June 2007

37.3mm - 05th September 2008

37.0mm - 06th July 2006

36.7mm - 27th November 2009

36.3mm - 30th October 2000

35.4mm - 13th May 2007

35.2mm - 13th December 2008

35.1mm - 01st October 2010

[Aaron]

I started recording rainfall in 2007, here's my wettest days ever

87.4 mm (25 June 2007)

67.8 mm (20 August 2008)

67.1 mm (26 June 2008)

55.9 mm (12 August 2008)

50.8 mm (15 June 2007)

46.2 mm (1 July 2007)

39.4 mm (31 July 2008)

38.1 mm (20 June 2007)

38.1 mm (17 August 2008)

36.1 mm (17 January 2008)

Notice how they're mostly all in summer. :smilz38:

[Isolated Frost]

Also interesting is that they're all in 2007 and 2008- nothing in 2009, 2010 and 2011!

[Aaron]

Yup 2008 and 2007 were both very wet, summer 2008 was extraordinarily wet.

[Milhouse]

Dont have any figures for myself but i'm sure the 15th or 25th June 2007 will almost always feature in other peoples records.

[Backtrack]

I believe Cumbria holds a record for over 200mm in a day?

[Liam J]

Seathwaite in Cumbria received 314mm of rainfall in 24hours during the flooding in November 2009, which is a record for any single UK location.

Edited November 2, 2011 by Liam J

[Aaron]

I'd love to see the climatic averages for Seathwaite.. !!

[Isolated Frost]

Isolated forst?... Hmmm!

[Backtrack]

Isolated forst?... Hmmm!

Howdee doo, stranger :winky:

Back on topic, here's the rainfall records for the UK:

http://en.wikipedia.org/wiki/UK_rainfall_records

[Aaron]

Slightly surprised to see the South West so wet, I knew it was wet, but not that wet.

[damianslaw]

Seathwaite in Cumbria received 314mm of rainfall in 24hours during the flooding in November 2009, which is a record for any single UK location.

Yes this occured at some point between 09:00 of the 18th Nov and 09:00 of the 20th Nov - I think it was probably something like the 24 hour period starting 04:00 19th Nov.

The 19th Nov was a very very wet day - we saw at least 3-4 inches quite possible alot more but I don't have the totals in 24 hours on top of the high totals from the previous day. If the current high was centred more southwestwards I suspect we would be enduring very similiar conditions right now - with active fronts becoming unstuck over NW Britain pumping in very mild tropical air enhancing the rate of precipitation - alas we have heights much further to the east bringing in drying southerlies and southwesterlies and preventing the atlantic fronts from making inroads..

[MP-R]

Slightly surprised to see the South West so wet, I knew it was wet, but not that wet.

I should add that my figures are for Bristol not Egham. The southwest can be very wet, especially over Dartmoor and Exmoor. We in particular are affected by Severn streamers in the right setup which are brilliant for late thunderstorms and snowy streamers such as Dec 21st 2009 or Dec 17th 2010.

[picog]

Over 100mm one day in July 2007— the day that Tewkesbury flooded. Can't remember the date . A few houses were flooded in the village by the usually babbling brook, which transformed into a raging torrent by early evening.

[Terminal Moraine]

Wettest days here since late 1977 are as follows;

January..........44.1 mm.....25th, 1995

February........37.5 mm.......5th, 2011

March.............37.7 mm......21st, 1981

April................31.9 mm .....2nd, 1989

May.................37.1 mm.....13th, 2007

June................63.3 mm ....16th, 1978

July..................63.2 mm.....16th, 2003

August.............78.1 mm.....25th, 1986

September.......71.4 mm.....14th, 1994

October............49.6 mm.....22nd, 1998

November.........58.9 mm......5th, 2000

December.........49.5 mm.....21st, 1991

[Robbie Garrett]

What's Londons max?

[Ben_Cambs]

Wettest day that I can recall was on Sunday 21st October 2001, when 90mm fell in 18 hours, flooding parts of Cambridge.. here is an article Coast put together about it a couple of years ago:

http://forum.netweather.tv/topic/57255-cambridgeshire-floods/

[Aaron]

I can imagine it did flood Cambridgeshire given it's flat as a pancake.

[I remember Atlantic 252]

6-7 Nov 2000, very bad, tenpin league rained off,

20-21 July 07, very wet

01 0ct 2010 very wet

08 Nov 2010 very wet

[reef]

The 25th June 2007 was the wettest day ever here when 97.8mm fell.

Just 9 days earlier on the 15th we had 41.0mm in one day too, which explains the terrible flooding we had in this area.

The rainfall for that month was a remarkable 206.9mm (414% of average) and was followed by 127.6mm in July (332%). The summer as a whole saw 374.1mm, which is 75mm more than the whole of 2011 so far.

[Aaron]

June 2007 saw 287.8mm of rain here.

2008 takes the champion as the wettest summer for me though:

June: 153.9mm

July: 153.7mm

August: 272.9mm

Edited November 5, 2011 by Aaron

[dave.p]

Some stats for near here.

Highest daily rainfall 81.8mm 10th July 1999

Wettest month 319.2mm November 2009