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OCTOBER 2012 daily and monthly summary

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OCTOBER 2012
November

October 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 only up to 60% 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"

   DAILY STATS OCTOBER 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
13.2 15.4 15.3 88 13.3 0.2 1009.1 FS 2.0 3.9 19 SW  Rain
2nd
10.1 15.7 15.1 77 11.1 1.5 1009.0 FS 4.6 3.6 20 SW  Rain spells
3rd
10.7 14.7 13.1 66 6.9 1.3 1004.9 FS 3.8 3.3 19 SW  Rain am
4th
6.7 15.4 15.1 59 7.2 4.8 1009.2 RS 0.3 1.7 18 SSW  Rain night pm
5th
11.3 16.1 14.8 71 9.6 2.2 1008.3 R 12.2 2.6 29 SSW  Rain am, eve.
6th
7.3 16.0 15.8 57 73 6.0 1012.4 ST 8.6 0.5 12 N  Rain night am
7th
2.8 16.2 16.2 52 6.3 7.0 1021.0 ST 0.0 0.1 6 SE  Sunny periods
8th
8.2 12.4 12.4 92 11.1 0.0 1010.5 F 6.6 0.2 10 N  Rain
9th
9.4 14.6 13.5 71 8.3 1.7 1014.9 FS 0.3 0.4 7 N  Rain night am
10th
6.6 16.1 15.1 55 6.1 4.7 1013.2 FS 0.0 0.3 11 SE  Sunny spells
11th
5.6 14.9 14.3 91 12.8 0.0 1000.5 F 3.3 0.6 11 SE  Rain eve.
12th
9.7 13.8 13.1 56 4.5 5.2 1006.4 RS 0.5 3.4 19 SSW  Rain showers
13th
6.2 12.4 11.0 74 6.5 2.0 1001.7 FS 0.5 0.7 13 SSW  Rain showers
14th
0.9 12.2 11.9 54 2.9 6.3 999.0 FS 0.3 0.8 13 N  Sunny periods
15th
2.8 13.7 13.2 64 6.6 3.5 1000.6 FS 0.0 2.1 18 SSW  Sunny spells
16th
9.8 14.9 14.8 48 3.9 6.3 1001.9 RS 2.5 4.4 22 SW  Rain night am
17th
6.9 16.3 15.7 64 8.9 3.2 998.1 RS 6.1 3.3 24 SW  Rain night am/eve.
18th
12.1 15.3 15.1 75 10.7 1.2 1001.7 ST 1.5 1.9 16 SW  Rain night am
19th
11.6 15.4 12.3 92 11.0 0.0 1005.8 FS 8.4 0.4 14 S  Rain
20th
9.7 12.9 12.4 87 10.3 0.0 1016.1 ST 3.8 0.3 10 SSW  Rain night pm.
21st
9.7 12.6 11.9 92 10.6 0.0 1015.0 FS 3.0 0.5 11 N  Rain
22nd
12.6 15.4 14.9 93 13.8 0.0 1018.7 RS 0.0 0.1 6 N  Mist
23rd
12.4 13.4 13.1 93 11.9 0.0 1021.8 FS 0.3 0.6 7 N  Mist
24th
12.9 16.7 16.0 80 12.5 2.8 1016.4 F 0.0 0.6 10 N  Mist am
25th
12.1 13.4 12.4 88 10.5 0.0 1013.4 FS 0.0 1.4 10 NE  Overcast
26th
8.5 10.6 7.7 86 5.5 0.0 1008.5 FS 1.8 2.0 20 N  Rain
27th
2.0 7.4 6.1 81 3.0 4.0 1014.6 RS 1.5 5.4 22 N  Rain showers
28th
1.1 8.7 8.3 80 5.1 0.5 1012.0 F 1.8 1.9 13 SSW  Rain night pm
29th
6.6 12.9 12.7 71 7.6 2.0 1006.1 F 1.8 1.4 14 SSW  Rain showers
30th
5.7 10.6 9.8 61 2.7 4.3 1002.1 F 0.3 0.6 8 SSW  Sunny spells
31st
4.7 11.6 11.6 67 5.7 0.8 987.6 F 2.8 3.0 21 SW  Rain am
                         
‡ 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 984 hPa SE of Iceland. Intermittent light rain moring with longer spell of rain around midday. Brightening up early evening.
2nd
Mainly cloudy day with a few sunny intervals. Band of light rain moves across around 17.00. Another spell of rain evening.
3rd
Heavy rain showers overnight, mainly cloudy with some light rain showers and bright spells in the morning.
4th
Sunny morning but increasing cloud after 11.00. Sunny spells in the afternoon. Rain arrives just before midnight continuing overnight.
5th
LP deepening to 996 hPa tracks from Bristol Channel to North Sea. Rain and showers continue overnight, sometimes heavy with strong wind gusts. Mainly cloudy day with some sunny intervals, further rain arrives just before 17.00.
6th
Rain continues from previous night, finally clearing a little after dawn. Sky gradually clears by 11.00 to give sunny periods.
7th
HP 1024 hPa Irish Sea. Mainly sunny but hazy sky with variable amounts of thin and sometimes thicker high cloud.
8th
Spell of rain, sometimes heavy, in mid and late morning. Staying gloomy with outbreaks of drizzle in the afternoon. Further rain late night.
9th
Light rain continues from previous night. Cloudy but bright morning with some sunny intervals, cloudy afternoon.
10th
A sunny morning, some cloudy spells in the afternoon but also sunny spells.
11th
A gloomy day with outbreaks of drizzle from late morning with more persistent rain from later afternoon/early evening.
12th
A dull start with a rain shower around 09.30. Becoming brighter with sunny periods from late morning. Another rain shower late night.
13th
LP 999 hPa Outer Hebrides. Mainly cloudy with a couple of rain showers and some sunny intervals.
14th
Rain shower just after midnight. Sunny start with a brief spell of shallow mist. A day of sunny periods with some brief cloudy spells in the afternoon.
15th
A mainly cloudy day with some short sunny spells.
16th
LP 985 hPa North Sea off NE England. A spell of rain in the night followed by a breezy day but with long sunny periods morning and afternoon.
17th
Spell of moderate/heavy rain before dawn. Sunny spells morning and afternoon with rain showers from late afternoon.
18th
Spell of rain in the early hours. Mainly cloudy day with some drizzle and a couple of bright interludes.
19th
A gloomy day with rain just before dawn, a dry spell in the morning then drizzle turning to rain in the afternoon.
20th
An overcast day, less gloomy than the previous day. Bands of rain from static warm front aligned N/S after 19.30.
21st
Another overcast and dull day with outbreaks of rain or drizzle throughout.
22nd
Fog early turning to mist with sky obscured all day.
23rd
Some drizzle in the night then yet one more gloomy day with low cloud and mist.
24th
A dull and misty morning, slowly brightening to give some short spells of hazy sunshine in the afternoon.
25th
Overcast and slightly misty morning, cloud lifts and visibility improves a little in the afternoon but remaining rather dull.
26th
The 7th day out of 8 with no sunshine. Overcast and gloomy with intermittent rain, and falling temperature throughout.
27th
Mainly sunny morning, a couple of prolonged rain showers in the afternoon with sunny intervals. Strong wind chill.
28th
LP 998 hPa Shetland. A cloudy day with a brief bright spell in the morning. Rain from 21.00.
29th
Short sunny spells in the morning, cloudier afternoon with outbreaks of rain into the evening.
30th
A rain shower well before dawn but the day is bright with sunny spells.
31st
Mainly cloudy with a spell of moderate rain in the morning. Sunny intervals and light rain showers in the afternoon.