September Weather Records

[Osbourne One-Nil]

In Great Asby, it was a below average month, both temperature-wise and rainfall-wise.

Average daily maximum; 16.3º

Highest daily maximum; 20.8º (11th)

Lowest daily maximum; 13.3º (16th & 24th)

Average daily minimum; 8.3º

Highest daily minimum; 13.2º (29th)

Lowest daily minimum; 1.8º (17th)

Mean temperature; 12.3º (12 year average, 12.7º)

Total rainfall; 40.4mm (year to date total 818.0mm)

No of wet days (0.2mm and above); eleven

Wettest day; 12.0mm (2nd)

Highest wind gust; 38mph (22nd)

[Andy Bown]

A remarkably consistent month for my first in my new home in Warminster, with every maximum between 16.6c - 22.0c, the majority being in the 18s and 19s!

Also a very dry month with 17mm of rain in total, 12.5mm of which occured on the 2nd!

Average max = 19.02c (Highest = 22.0c on 19 Sept)

Average min = 10.89c (Lowest = 6.1c on 25 Sept)

Mean = 14.95c

Dry days = 22

Rain days = 8

Rainfall = 17mm

[Osbourne One-Nil]

Does Captain Mainwaring still live there?

[johnholmes]

pretty dry and rather above average temperatures for here

Avge Min=10.4C(9.5)

Avge max=20.0C(18.2)

Mean=15.2C(13.9)

Absolute max=25.8C on 8th and absolute min=7.1C on 27th

rainfall=11.4mm with only 6 days with 0.2mm or more and 2 with 1.0mm or more

wettest was 2nd with 5.8mm

no fog, frost, snow, hail or thunder

[ANYWEATHER]

What can you say about September, except its exceptional dryness.!! 10mms fell at the [VOEWS] and the average is 62mms and following a fairly dry August, so my garden is thirsty!! A pretty high pressure dominated month with a 1036.3mbs recorded on the 10th but 997.6mbs recorded on the 2nd.

Highest temperature..24c on the 8th

Lowest temperature..4.4c on the 11th

Average daily temp..18.3c...recorded 19.2c

Average night temp..10c....recorded 9.6c

so a relatively average temperature month for September! :huh:

[Zenarcher]

Castlebay Isle Of Barra September 2009

Highest Temperature 20.5°C

Lowest Temperature 7.8°C

Total Rainfall 55mm

Highest Humidity 94%

Lowest Humidity 62%

Highest Average Wind Speed 35mph

Average Wind Speed 14mph

Highest Gust 58mph

Highest Pressure 1040mb

Lowest Pressure 992mb

Lowest Wind Chill 1.7c°C

Highest Dew Point 14°C

Lowest Dew Point 5.5°C

[trevbp]

Peterborough

Provisional Data For September 2009

Average temperature = 15.7°C - Regional Av = 14.5°C (1991-2005)

Avg daily max temp = 20.1°C - Regional Av = 19.1°C (1991-2005)

Avg daily min temp = 11.7°C - Regional Av = 10.0°C (1991-2005)

Maximum temperature = 25.4°C on day 08 at time 16:26

Minimum temperature = 7.2°C on day 27 at time 07:35

Rainfall for month = 8.6 mm - Regional Av = 46.5mm (1961-1990)

Rainfall for year = 291.8 mm

Average humidity = 68%

Minimum humidity = 33% on day 01 at time 16:00

Average dewpoint = 9.4°C

Average Pressure = 1021.3 mb

Maximum Pressure = 1039.0 mb on day 11 at time 08:18

Minimum Pressure = 988.0 mb on day 03 at time 04:02

[TonyH]

Lampeter, Ceredigion, 120 masl

Summary: Dry, near normal temperatures, quiet

It was the driest September locally since at least 2003, with all but 4mm falling in the first 8 days. Temperatures were very average, as with August, with little variation afforded, the maxima ranging from 16c at the lowest to 21c highest!

1st -8th: Unsettled and rather windy with rain or showers at times and sunny intervals. Most of the rain (22mm) fell on the 2nd. Rather cool apart from the 7th which was warm at 21c.

On the 9th high pressure returned to our shores after virtually a Summer- long absence! Pressure reached its highest level since May, and was some 16mbar higher than on the previous day.

The 9th -13th was mostly sunny and quite warm, but with clear, cool nights- the 10th seeing the season's first ground frost.

14th - 21st saw more cloud but was still pleasant with sunny spells, and temperatures average to quite warm, although still some cool nights and a couple of further ground frosts.

22nd/ 23rd was rather different as weak troughs brought drizzle or light showers at times, but sunny intervals as well.

24th-29th: Rather cloudy, a few sunny intervals and near normal temperatures.

30th: A little rain and drizzle cleared to sunny weather.

Statistics

Total rainfall: 38.9mm

Wettest day: 22.1mm 2nd

Rain days >0.2mm: 11

Wet days >1.0mm: 6

Days of heavy rain >10mm: 1

Longest dry spell (<0.2mm): 11 days (9th- 19th)

Mean temperature: 12.8c

Mean Max: 17.9c

Mean Min: 7.7c

High max: 21.4c 7th

Low Max: 15.8c 25th

High min: 15.6c 8th

Low min: 1.6c 18th

Air frost: 0

Ground frost: 3

Mean pressure: 1021mbar

Max pressure: 1038mbar

Min pressure: 988mbar

Mean RH: 85%

High RH: 96% 24th

Low RH: 56% 20th

Predominant wind directions: SSE and WNW

Mean wind speed: 0.8mph

Days with:

Hail: 0

Sleet or snow: 0

Snow lying 0900: 0

Gale: 0

Thunder: 0

Fog: 4

Fog at 0900: 1

Graphs from WS2300:

Note: to add 18mbar to pressure!

[Thundery wintry showers]

Cleadon statistics and anomalies relative to estimated 1971-2000 averages:

Mean Max 17.8 (+1.4)

Mean Min 10.9 (+1.3)

Mean Temp 14.3 (+1.3)

Highest max: 24.5 (8th)

Lowest min: 6.8 (18th)

Total precipitation: 28mm (50%)

Wettest day: 14mm (4th)

There were no days with gales, sleet/snow, fog or thunder.

Overall this was a dry and fairly sunny month in Cleadon. The first week was cool, mostly dull and wet, and it was particularly wet and windy on the 3rd and 4th. There was a warm but cloudy day on the 8th with 24.5C (meanwhile it was 27C and blazing sunshine down in Norwich). The periods 9th-12th and 17th-20th were generally sunny and warm by day and cool by night, but low cloud featured a fair bit between the 13th and 16th. Dry weather and variable cloud featured in the last third and there were some notably warm nights at times- 15.1C minimum overnight 28th/29th.

Temperatures came out above the long-term average yet again, and we have to go back to 1994 for the last significantly colder-than-average September (though 1995, 1996, 1997 and 2001 were very close to the average). It was the warmest September since the record-breaking 2006. Rainfall was below normal but slightly higher than September 2007 (26mm).

[BornFromTheVoid]

September records for Ballyporeen, South Tipperary, Ireland. Long term averages estimated based on 61-90 data from local met stations.

Mean Max 16.8°C (-0.1)

Mean Min 9.3°C (+0.9)

Mean Temp 13.0°C(+0.35)

Max 19.8°C (13th)

Min 5.1°C (12th)

Lowest Max 13.6°C (2nd)

Highest Min 13.3°C (22nd)

Precipitation 48.2mm (61%)

Highest Daily Total 26.4mm (2nd)

Dry Days 23

Wet Days 7

Highest Gust 31.6km/h (3rd)

No days >20°C despite the long periods of sunshine and often still air. The min of 5.1°C on the 12th is the lowest since 26th of May.

A stretch on dry days running from the 8th until through the 30th is the longest on record and with 61% of the average rain, it's the first below average and driest month since March.

[Marduk]

Summary for Stockholm September 2009:

Temperature (°C):

Mean (1 minute) 12,6

Mean (min+max) 13,4

Mean Minimum 8,8

Mean Maximum 17,5

Minimum 2,1 day 29

Maximum 23,4 day 09

Highest Minimum 14,5 day 01

Lowest Maximum 10,1 day 30

Air frosts 0

Pressure (hPa):

Maximum 1029,6 day 14

Minimum 989,6 day 04

[MP-R]

SEPTEMBER 2009 in YATTON, Bristol

September was another dry and predominantly benign month rather like August after a brief very unsettled first few days. It was drier than August and also a fairly sunny month, especially when easterly winds prevailed bringing dry and clear air. A noticeable pattern established itself after the 12th of a few days of sunshine followed by a few days of cloud and only two rogue days brough rain in the form of drizzle or occasional light stuff on the 22nd and 23rd.

The most interesting part of the month was the opening with convection at its best on the 1st with plenty of heavy showers and a fairly deep low pressure system bringing the heavy rain and strong winds since July 30th. The 3rd was brighter with scattered heavy showers and a windy day on the 4th was mainly sunny. It became very humid and warm by the 6th and the highest temperature was recorded on the 8th. The 9th saw the return to cooler air and the rest of the month was quiet and rather boring but at least sunny rather than cloudy.

STATISTICS:

Average Overall Temp. 16.0C

Average Maximum Temp. 20.4C

Average Minimum Temp. 11.5C

Highest Maximum Temp. 24.6C (Tue 08th)

Highest Minimum Temp. 16.3C (Tue 08th)

Lowest Maximum Temp. 16.7C (Wed 02nd)

Lowest Minimum Temp. 07.5C (Fri 18th)

Total Monthly Rain: 28.5mm

Months Wettest Day: 16.2mm (Wed 2nd)

Number of Rain Day: 06 (1st, 2nd, 3rd, 4th, 9th, 23rd)

Ave. Barometer: 1022.0mb

No. Of Frosts: 0

No. Of Snow Days: 0

No. Of T-Storms: 0

No. Of Thunder Days: 0

[jmackenz]

Monthly Weather Report for Garioch Weather Station, Inverurie, Aberdeenshire – September 2009

Warmer and sunnier than average, with 91% of the rainfall occurring on the 3rd and 4th days of the month.

Mean Temperature: 13.2°C, 1.5°C higher than the long term average (LTA) of 11.7°C.

Minimum Temperature: 1.7°C, on the 14th.

Mean Minimum Temperature: 8.8°C, 1.0°C higher than the LTA of 7.8°C.

Maximum Temperature: 22.6°C, on the 8th.

Mean Maximum Temperature: 17.5°C, 2.5°C higher than the LTA of 15.0°C.

Maximum High Wind Speed: 27.0mph, on the 22nd.

Total Rainfall: 81.0mm, 12.7mm higher than the LTA of 68.3mm (118.6%).

Average Bright Sunshine Hours: 4.9hrs per day, 1hr more than the LTA of 3.9hrs per day (125.9%).

For more detail, click here.

For 5 year comparison, click here.

[Evening thunder]

September 2009 Weather Stats:

A generally calm dry and high pressure dominated month apart from the first few days which were quite wet. no significant rain fell after the 4th with many of the days showing 0.2mm being caused by dew. I think we had more sunshine than many areas as we often escaped the areas of cloud stuck in the high at times, although there were a few cloudy days.

Highest Max: 21.6°C, 70.9°F (19th September) (also a max of 21.6°C, 70.8°F on the 9th.)

Lowest Max: 16.0°C, 60.8°F (5th September)

Highest Min: 15.5°C, 59.9°F (7th September)

Lowest Min: 3.3°C, 37.9°F (25th September)

Highest daily mean: 17.0°C, 62.6°F (both the 7th and the 8th September)

Lowest daily mean: 10.4°C, 50.7°F (25th September)

Monthly mean: 13.9°C, .57.1°F (around average)

Mean max: 19.1°C, 66.3°F

Mean min: 9.2°C, 48.5°F

Avg wind speed: 2.9mph

Max wind gust: 33mph (1st September)

Rainfall: 35.3mm (about 50% of normal)

Max daily rain: 18.2mm (2nd September)

(Days of rain over or equal to)

Days of rain >= 0.2mm: 15 (some days caused by 0.2mm of dew being measured)

Days of rain >= 2mm: 2

Days of rain >= 20mm: 0