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NOVEMBER 2012 daily and monthly summary

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NOVEMBER 2012
December

November 2012 Monthly summary stats
‡ 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 less than 50% of total possible sunshine exposure this month due to low sun altitude and 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"

   DAILY STATS NOVEMBER 2012
 
TEMPERATURE ºc
HUMIDITY
SUN ‡
PRESSURE
RAINFALL
WIND SPEED
DIRECTION
 WEATHER
 NOTES
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 ‡
                       
1st
6.1 11.2 8.0 77 4.2 2.2 977.2 RS 13.2 3.1 19 SW  Rain am
2nd
3.8 10.2 10.1 59 2.4 4.0 989.3 ST 0.0 2.7 19 SSW  Sunny spells
3rd
0.9 9.7 9.7 57 1.6 4.2 995.6 R 1.5 1.6 19 SSW  Rain am
4th
1.1 8.0 5.4 83 2.8 0.1 989.6 RQ 11.9 1.9 30 SW  Rain
5th
0.8 9.6 9.0 59 1.4 3.5 1006.0 R 0.3 0.8 13 N  Sunny spells
6th
0.4 9.5 9.5 63 2.7 2.7 1019.3 FS 0.0 1.5 13 SSW  Sunny am
7th
4.8 10.3 10.2 71 5.1 4.3 1023.0 FS 0.0 2.4 17 SSW  Sunny
8th
5.7 12.2 11.7 67 5.8 1.2 1016.8 FS 0.0 1.4 13 SSW  Fair
9th
6.9 12.1 11.4 65 4.0 0.8 1007.0 F 0.5 1.2 16 SW  Rain night pm
10th
7.4 10.1 9.2 89 7.4 0.0 994.1 FS 1.8 0.9 11 SSW  Rain am
11th
0.4 9.7 9.7 68 4.0 3.8 1012.0 RS 0.3 0.3 8 SSW  Sunny
12th
2.2 11.9 10.2 89 8.4 0.0 1019.5 FS 1.3 1.7 14 SW  Rain
13th
10.3 14.4 14.2 76 10.0 1.5 1025.7 FS 0.0 1.3 11 SSW  Fair
14th
8.7 12.8 12.3 62 5.2 3.3 1023.6 F 0.0 0.2 7 SE  Sunny
15th
5.6 9.9 9.6 77 5.7 0.8 1019.9 FS 0.0 0.1 6 SE  Cloudy
16th
5.8 8.9 8.4 90 6.9 0.0 1012.4 F 0.0 0.2 11 SE  Mist
17th
8.8 13.2 11.3 78 7.6 0.2 1005.6 RS 0.5 1.2 11 SW  Rain night pm
18th
1.9 9.0 8.8 59 1.2 3.2 1013.6 ST 0.0 0.0 0.0 Calm  Sunny
19th
-0.8 10.7 10.0 72 5.2 0.2 1009.0 FS 0.0 2.0 19 SW  Cloudy
20th
9.4 12.4 12.1 86 9.8 0.7 1007.9 FS 4.8 3.5 22 SW  Rain
21st
9.1 10.6 9.5 85 7.1 0.0 1000.1 RS 4.1 2.9 22 SE  Rain
22nd
4.7 12.6 11.7 74 7.2 0.3 1010.3 F 3.3 5.3 30 SW  Rain
23rd
5.6 9.5 9.5 82 6.6 0.5 1011.7 ST 7.9 0.9 25 SW  Rain night am
24th
1.3 9.1 8.4 93 7.4 0.0 1008.5 F 6.3 0.7 18 SE  Rain
25th
7.1 12.1 9.9 81 6.8 0.2 1005.2 ST 2.3 6.3 32 SW  Rain showers
26th
7.8 10.5 8.8 86 6.6 1.0 994.6 FS 7.4 1.2 17 SW  Rain
27th
6.2 7.8 7.8 88 6.0 0.0 1001.6 RS 3.6 2.7 20 N  Rain
28th
4.9 6.4 5.8 87 3.8 0.2 1010.7 FS 1.0 4.5 18 N  Drizzle
29th
2.3 5.4 5.1 77 1.4 1.7 1010.0 FS 0.0 2.0 14 N  Sunny spells
30th
-1.1 4.5 4.5 75 0.5 1.7 1009.8 ST 0.0 0.2 6 SW  Sunny
                         
‡ 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 65% 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 use METAR codes: OVC = overcast; SHRA = rain showers; '+' = heavy; CAVOK = no cloud below 5000 ft & visibility> 10 km & no fog, precipitation or snow; SN = snow; RASN = Rain and snow

1st
LP 964 hPa NW of Outer Hebrides. A spell of heavy rain around 02.45 with further light rain continuing to daybreak. Mainly dry and bright day with a couple of light showers and some sunny spells.
2nd
A mainly bright day with a mixture of sunny and cloudy spells.
3rd
A spell of moderate rain from 06.00 to 07.30 followed by a day of sunny spells. Clouding over by late afternoon.
4th
Deepening LP 987 hPa tracks ENE across southern England. Very dull with spells of rain in the morning, sometimes very heavy and briefly torrential with passage of fronts. Slightly brighter afternoon.
5th
A little rain around dawn. clearing to give a bright day with long sunny spells although a little hazy.
6th
Sunny and clear morning, becoming hazy with increasing cloud after midday and overcast from late afternoon.
7th
HP 1032 hPa central france, LP 992 hPa W of Faroe Is. Long sunny periods with few clouds most of the day. Becoming more cloudy late pm.
8th
Mainly cloudy day but bright with some short sunny spells.
9th
Overcast with some drizzle around 09.30. Brightening to give a few sunny intervals and clearing in early evening. Spell of light rain late evening.
10th
A rather gloomy day with drizzle and light rain in the morning. Dry but overcast afternoon until late when the cloud breaks.
11th
HP ridge from the Azores. A sunny day with very little cloud at any time. Precipitation from condensation am.
12th
A cloudy start, then rain and drizzle from around 11.00 lasting through to nighttime.
13th
Mainly cloudy with a bright and sunny spell in the middle of the day.
14th
HP 1037 hPa E Europe. Overcast start brightening by 09.00 to give a sunny and clear day.
15th
A cloudy and rather murky morning. Sky clears just before 14.00 to give hazy sunshine.
16th
An overcast and murky morning, becoming more misty and foggy through the afternoon.
17th
Mainly overcast and sometimes dull but with a brief bright spell in the middle of the day. Spell of light rain / drizzle after 20.00.
18th
Weak ridge of HP from E of Azores. A sunny day with patchy thin high cloud later.
19th
Some brightness and sunshine in the morning but a mainly cloudy day.
20th
LP 978 hPa W of Outer Hebrides. Intermittent rain and drizzle through the day with a very short brighter spell.
21st
LP 999 hPa SW England moving ENE. Light rain and drizzle from 05.00 to 10.30 then a dry interlude before a spell of heavier rain in mid afternoon.
22nd
Heavy rain shower around 06.00. Bright and breezy day with a little sunshine. Rain arrives around 21.00 ahead of cold front.
23rd
Slow passage of cold front overnight brings prolonged rain with a heavy burst around 01.00. A fair and bright day with some sunshine.
24th
Deepening LP approaches from Biscay, a very murky day with continuous light rain through the day.
25th
LP deepening to 984 hPa crossing the UK from the SW to E Anglia during the night. Strong winds from midnight to 08.00 and some rain. A sunny morning becoming cloudy with rain showers in the afternoon.
26th
Another spell of overnight rain, briefly heavy, followed by a further band of rain in the morning. Bright afternoon but very light rain persists.
27th
Overnight showers followed by a dull day with intermittent rain and drizzle.
28th
After a cloudy but bright start, cloud cover increases by 10.30 to give a day of intermittent light rain and drizzle.
29th
A mixture of cloudy and sunny spells through the day. Sky clearing in late afternoon.
30th
Ground frost lasts in small patches though whole day. Sunny day with just some thin high cloud.