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AUGUST 2010
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| 1st - 9th | 1st, LPs surround the UK and Ireland, HP 1033 hPa north of Azores, cloudy day with only brief sunny intervals. 2nd, mainly cloudy again with some sunny intervals. 3rd, longer sunny spells but still mainly cloudy. 4th, LP 995 hPa Faeroe Isles, series of fronts across Ireland and the UK, showers around 3am, thunderstorm 3.30pm, more light rain showers later. 5th, sunny start, cloudier later with brief sunny intervals. 6th, LP 1002 hPa NW of Northern Ireland, again a bright start gives way to cloud with a fine light drizzle from early evening. 7th, rain showers from 5am to 07.30am, dull morning but brighter later with sunny intervals. 8th, LP 1014 hPa W of Denmark, LPs to NW and NE of UK, weak HP ridge from 1027 hPa near Azores. 9th, foggy start, clearing slowly cloudy morning then sunny periods pm. |
| 10th - 15th | 10th, LP 1003 hPa Scotland, moderate/heavy rain am from cold front, sunny spell pm then further light rain early evening from warm front on new LP 1009 hPa Bristol Channel. 11th, rain shower 06.30am, bright morning, cloudy middle of day, clearing later. 12th, LP drifting SSE down the North Sea, cloudy again with a light shower early evening giving a trace of rain. 13th, LP 1011 hPa NE of Norfolk, mainly cloudy once more with bands of showers pm and early evening tracking SEwards from the E Midlands, heavy shower at 23.20. 14th, LP 1016 hPa drifting slowly over W Kent & E Sussex, persistent moderate rain from 13.00h lasting 2 hours then heavy showers later with rumbles of thunder. 15th, light rain early morning, another cloudy day with brief sunny intervals. |
| 16th - 21st | Continuing the theme of persistent cloud cover though mainly dry with only short sunny spells. 16th, LP 1005 hPa over Belgium, HP to W and SW, cloudy am, sunny spells pm. 17th, drizzle early am, cloudy later. 18th, sunny morning, cloudy later with few sunny intervals. 19th, another bright start before cloud builds but sunny spells later. 20th sunny start, becoming overcast after 11.00 and staying that way for the rest of the day also increasing breeze. 20th/21st, warmest night of the year here so far. 21st, drizzle early am, overcast and mainly dull. 22nd, mainly dull again but some sunny intervals, light rain showers pm, more persistent rain later. |
| 22nd - 27th | 22nd, mainly dull again but some sunny intervals, light rain showers pm, more persistent rain later as deepening LP swings into the SW of England. 23rd LP 992 hPa tracks across from SW into E Anglia overnight, fronts bring outbreaks of rain - with one extremely heavy burst of 5mm in 10 mins followed by persistent but lighter rain to 07.30am, some very light rain showers pm. 24th, sunny periods, cloudy spells and blustery. 25th, LP 1000hPa WSW of Cornwall moving ENE, dry morning, light/moderate rain from 13.30 with some heavier spells evening and into the night. 26th, intermittent drizzle from the LP system continues into early morning, staying mostly overcast with a brief glimpse of sunshine after midday, light rain late evening into night. 27th, moderate rain shortly after midnight, another dull day with few breaks in the cloud until early evening. |
| 28th - 31st | 28th, LPs to N and NE, HP over Atlantic W of Ireland, sunny / cloudy spells with one light rain shower early evening. 29th, LP 1003 hPa North Sea off NW Scotland, sunny spells; very strong, very brief squall with heavy rain mid afternoon giving site new highest August wind speed gust. 30th. HP 1027 hPa builds from the W over Northern Ireland, sunny and clear start then sunny spells later. 31st, long sunny periods. |
| AUGUST MONTHLY SUMMARY |
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| ‡ SUN: Sunshine hours are calculated approximately and solely from solar radiation readings, but note that the solar sensor's exposure to sunshine is limited. The sensor receives only up to 65% of total possible sunshine exposure this month due to obstruction. There is no allowance for sunshine by visual observation only, so the sunniest day figures above can be very significantly less than the actual daily sunshine duration. THW = Shaded Heat Index calculated with cooling/warming effect of wind and humidity to give an apparent temperature. THSW = Unshaded Heat Index calculated with cooling/warming effect of wind, humidity and full direct sunshine to give an apparent temperature. EVAPO-TRANSPIRATION is drying effect due to sun and wind, and is equivalent to "negative rainfall" |
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DAILY STATS AUGUST 2010 |
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TEMPERATURE ºc |
HUMIDITY |
SUN ‡ |
PRESSURE |
RAINFALL |
WIND SPEED |
DIRECTION |
WEATHER NOTES ‡ |
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DATE |
Low (21-09h) |
High (09-21h) |
Temp at 14.00z |
RH % at 14.00z |
Dewpoint ºc at 14.00z |
Bright sun hrs |
hPa at 14.00z |
Day Total (mm) |
Average (mph) |
Max Gust (mph) |
Dominant (Compass) |
Precipitation type etc ‡ |
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1st |
12.3 | 21.5 | 19.8 | 55 | 10.5 | 1.3 | 1011.9 | ST | 0.0 | 1.4 | 17 | SW | Cloudy |
2nd |
15.6 | 22.8 | 21.3 | 46 | 9.2 | 2.7 | 1015.3 | ST | 0.0 | 1.2 | 12 | N | Cloudy |
3rd |
10.8 | 23.1 | 22.2 | 42 | 8.6 | 5.3 | 1014.3 | FS | 0.0 | 1.9 | 17 | SW | Sunny spells |
4th |
14.3 | 20.4 | 17.9 | 76 | 13.6 | 1.5 | 1004.1 | FS | 2.3 | 2.5 | 18 | SW | Thunder pm |
5th |
10.9 | 20.9 | 20.3 | 39 | 5.9 | 2.3 | 1011.7 | RS | 0.0 | 1.7 | 12 | SSW | Cloudy |
6th |
9.4 | 20.4 | 17.6 | 74 | 12.9 | 0.8 | 1014.7 | ST | 0.0 | 2.7 | 19 | SW | Cloudy |
7th |
15.9 | 22.2 | 21.2 | 58 | 12.6 | 3.0 | 1013.2 | ST | 0.8 | 2.7 | 19 | SW | Rain showers am |
8th |
13.9 | 23.8 | 22.1 | 43 | 8.9 | 4.8 | 1018.6 | FS | 0.0 | 1.7 | 12 | N | Sunny intervals |
9th |
11.8 | 22.7 | 22.6 | 46 | 10.4 | 6.3 | 1013.6 | FS | 0.0 | 2.3 | 16 | SW | Sunny periods pm |
10th |
16.1 | 19.6 | 18.8 | 72 | 13.6 | 1.8 | 1009.6 | FS | 7.9 | 3.4 | 19 | SW | Rain am |
11th |
12.4 | 20.3 | 19.9 | 58 | 11.4 | 3.2 | 1012.5 | ST | 0.3 | 1.4 | 12 | SSW | Sunny spells |
12th |
12.5 | 19.8 | 18.3 | 56 | 9.4 | 2.0 | 1015.1 | RS | 0.0 | 1.7 | 16 | N | Cloudy |
13th |
11.4 | 18.9 | 17.0 | 65 | 10.4 | 3.3 | 1015.3 | FS | 1.8 | 1.7 | 16 | N | Rain showers pm |
14th |
12.9 | 17.6 | 15.2 | 84 | 12.5 | 1.7 | 1015.3 | ST | 5.3 | 0.4 | 8 | N | Rain, Thunder pm. |
15th |
13.0 | 22.2 | 20.8 | 56 | 11.7 | 2.7 | 1018.4 | FS | 0.3 | 2.7 | 19 | N | Cloudy |
16th |
12.9 | 23.3 | 20.9 | 56 | 11.8 | 5.0 | 1013.7 | FS | 0.0 | 3.6 | 22 | N | Sunny spells pm |
17th |
14.2 | 18.4 | 17.4 | 80 | 13.9 | 1.2 | 1009.3 | FS | 0.5 | 2.2 | 14 | SSW | Drizzle am, cloudy |
18th |
13.3 | 20.9 | 18.8 | 47 | 7.2 | 1.8 | 1007.4 | FS | 0.0 | 2.2 | 16 | SW | Cloudy |
19th |
10.6 | 20.9 | 19.3 | 62 | 11.8 | 3.7 | 1012.8 | RS | 0.0 | 2.0 | 17 | SW | Sunny spells |
20th |
14.8 | 21.7 | 20.0 | 75 | 15.4 | 0.7 | 1016.1 | RS | 0.0 | 3.4 | 17 | SW | Cloudy |
21st |
18.6 | 21.0 | 19.9 | 83 | 16.9 | 0.0 | 1019.1 | ST | 0.3 | 4.7 | 19 | SW | Overcast |
22nd |
18.3 | 21.7 | 20.4 | 80 | 16.9 | 0.8 | 1012.4 | FS | 3.0 | 2.4 | 14 | SW | Rain evening |
23rd |
16.7 | 20.6 | 19.4 | 76 | 15.1 | 3.7 | 998.1 | ST | 17.0 | 4.6 | 24 | SW | Rain+ night/am. |
24th |
11.3 | 20.6 | 19.2 | 54 | 9.6 | 4.5 | 1008.5 | RS | 0.0 | 3.8 | 22 | SW | Sunny spells |
25th |
10.6 | 18.2 | 14.8 | 81 | 11.6 | 0.2 | 1012.9 | FS | 22.1 | 0.6 | 12 | SW | Rain pm |
26th |
13.3 | 19.6 | 19.2 | 79 | 15.4 | 0.2 | 1003.5 | FS | 1.8 | 3.3 | 21 | SW | Rain am, evening |
27th |
11.8 | 16.8 | 16.1 | 69 | 10.4 | 0.8 | 1010.8 | R | 6.6 | 1.4 | 13 | N | Rain am, cloudy |
28th |
10.6 | 19.6 | 19.3 | 43 | 6.4 | 4.5 | 1018.7 | FS | 0.3 | 1.7 | 14 | SSW | Rain shower eve. |
29th |
11.8 | 18.6 | 18.4 | 54 | 9.0 | 3.7 | 1011.5 | F | 0.8 | 3.1 | 32 | N | Squall pm. |
30th |
9.3 | 19.4 | 18.7 | 50 | 8.1 | 5.0 | 1022.5 | RS | 0.0 | 2.9 | 20 | N | Sunny spells |
31st |
7.2 | 21.3 | 21.1 | 40 | 7.0 | 8.2 | 1024.0 | F | 0.0 | 0.3 | 10 | N | Sunny periods |
| ‡ SUN: Sunshine hours are calculated approximately and solely from solar radiation readings, but note that the solar sensor's exposure to sunshine is rather limited. The sensor receives less than 25% of total possible sunshine exposure this month, and there is no allowance for sunshine by visual observation only, so the figures above can be very significantly less than the actual daily sunshine duration. |
| Barometer trend (previous 3 hours) : F = falling, ST = steady, R = rising; Q = quickly, S = slowly |
| ‡ Weather Notes may use METAR codes: '+' = heavy |