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FEBRUARY 2008 daily and monthly summary

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FEBRUARY 2008
March 2008
1st - 7th
A bright start as LP moves away into Scandinavia followed by another to NW of Scotland and HP in SE Europe. More LPs transit quickly across N Scotland. Rain overnight 3rd/4th. Rain early morning 5th and heavy showers pm.
8th - 13th
HP lies over Germany/Austria and LPs continue to track past N Scotland, a rather mild airstream. Fog mornings of 8th and 9th clearing by 10am. Frost melt gives rainfall reading on 10th but a sunny day throughout, as were 11th, 12th & 13th.
14th - 20th
HP lies to NE, moving SSE and leaving the UK under a ridge. A dry airstream with notably large diurnal ranges of temperature on the 17th and 18th, precipitation resulting from frost melt.
21st - 24th
HP lies to SE with LPs to W and N. 22nd and 23rd rather dull with only fleeting brightness. Ridge of HP over S England on 24th.
25th - 29th
Becoming increasingly unsettled as deep LPs track eastward past N Scotland. Mostly dull on the 28th and 29th with a wet and windy end to the month.
FEBRUARY 2008 SUMMARY
ACTUAL TEMPERATURE
 AVERAGE
 Daily Maximum
10.6
  ºC ( + 2.8 )*
 Daily Minimum
1.8
  ºC ( -0.7 )*
 Daily Mean
5.6
  ºC ( + 0.9 )*
 EXTREMES
 High Maximum
14.9
  ºC (  9th )
 Low Minimum
-5.3
  ºC ( 17th )
 Low Maximum
6.2
  ºC ( 14th )
 High Minimum
8.9
  ºC ( 26th)
 
   
 Days with Air Frost
12
    
 Days with max > 10º
19
    
 Days with max < 5º
0
    
 
PRECIPITATION
 Monthly Total
20.5
  mm ( 40%)*
 Days with measurable precip
11
  Days ( -3 )
   ...of which, days with >= 1.0 mm
4
  Days  
   ...and days with snowfall observed
0
  Days  
 Days with Snow Cover
0
  Days  
 Days with Thunder
0
  Days  
 RAIN RATE & EXTREMES
 High Rain Rate
32.0
  mm/hr ( 5th )
 High Rain Total in 1 day
10.9
  mm ( 5th )
 High Rain Total in 1 hour
3.6
  mm ( 5th, 01.20h)
 EVAPO-TRANSPIRATION
 Total for month
27.1
  mm  
 High Total for 1 day
1.8
  mm ( 26th )
APPARENT TEMPERATURE
 Low Wind Chill
-5.3
  ºC ( 17th )
 DAVIS HEAT INDICES THW & THSW
 Low Temp/Hum/Wind Index
-5.4
  ºC ( 17th )
 High Temp/Hum/Wind Index
13.3
  ºC (  9th )
 High Temp/Hum/Sun/Wind Index
20.9
  ºC ( 24th )
 
DEWPOINT & HUMIDITY
 High Dewpoint
8.7
  ºC (  5th & 29th )
 Low Dewpoint
-8.7
  ºC ( 18th )
 Average Dewpoint at 14h
2.3
  ºC  
 Low Relative Humidity
25
  % ( 18th )
 Average RH at 14h
60
  %  
WIND SPEED & DIRECTION
 Monthly Average
2.1
  mph  
 Windiest day (Average)
7.6
  mph ( 5th )
 Highest Gust
32
  mph ( 5th )
 Dominant Direction
SSW
  ( 37% )
 
BAROMETER
 Monthly Mean
1022.3
  hPa  
 High Barometer
1042.4
  hPa ( 16th )
 Low Barometer
987.0
  hPa (  4th )
SUNSHINE
 Max Sensor Exposure to direct sun
6.5
  hours/day (9 possible)
 Calculated Monthly Sunshine Hours
101.1
  hours  
 Estimated Actual Hours (approx)
115
  hours  
 Sunniest Day Measured
6.3
  hours ( 18th )
 Days with no sunshine
5
  Days  
 
FOG
 Number of Days with Fog
2
  Days  
NEW RECORDS SET THIS MONTH
  • UK Met Office: Sunniest February in UK since records began in 1929
‡ 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"

   DAILY STATS FEBRUARY 2008
 
TEMPERATURE ºc
HUMIDITY
SUN ‡
PRESSURE
RAINFALL
WIND SPEED
DIRECTION
DATE
Minimum
(21-09h)
Maximum
(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)
High Gust
(mph)
Dominant
(Compass)
                     
1st
 3.6 7.7 7.7 52 -1.6 3.7 997.8 st 0.0 3.5 24 SSW
2nd
 0.1 6.8 6.7 51 -2.8 4.1 1014.9 fs 0.0 2.5 17 SSW
3rd
 4.2 7.3 5.7 61 -1.2 1.5 998.1 fq 0.3 4.3 26 SW
4th
 2.4 9.0 8.8 58 1.0 3.2 1001.6 r 2.5 3.7 19 SSW
5th
 6.0 11.8 11.1 85 8.7 0.5 999.7 st 10.9 7.6 32 SSW
6th
 8.0 9.8 9.7 56 1.4 2.8 1026.7 rq 0.3 3.0 22 N
7th
 0.1 11.9 11.2 69 5.7 3.8 1032.6 fs 0.0 1.2 16 SSW
8th
 -0.4 13.3 13.0 41 0.0 5.5 1029.7 f 0.0 0.5 12 SE
9th
 -0.1 14.9 14.8 39 0.9 5.6 1030.1 fs 0.0 0.2 10 SE
10th
 -1.4 13.9 13.6 44 1.5 5.9 1032.2 fs 0.3 0.1 8 ESE
11th
 -2.0 12.4 12.0 57 3.7 5.9 1032.2 fs 0.0 0.2 7 ESE
12th
 -1.1 14.3 13.9 51 3.9 5.8 1033.8 st 0.0 0.1 6 ESE
13th
 -2.1 12.7 12.6 54 3.5 6.0

1034.6

 f 0.0 0.4 7 SW
14th
 4.1 6.2 5.8 76 1.9 0.0 1036.2 fs 0.0 1.0 12 SW
15th
 4.3 6.7 6.4 64 0.1 2.7 1036.8 fs 0.3 1.3 13 SW
16th
 -2.1 6.4 6.4 50 -3.3 6.0 1040.9 f 0.0 0.5 12 ESE
17th
 -5.3 10.1 9.9 42 -2.4 6.2 1037.5 f 0.0 0.2 8 SE
18th
 -4.6 11.9 11.8 37 -2.5 6.3 1031.3 f 0.0 0.3 8 SE
19th
 -0.9 9.4 9.1 53 0.0 4.7 1021.8 f 0.3 0.4 8 ESE
20th
 -3.1 9.9 9.1 69 3.7 4.2 1017.6 fs 0.0 0.2 7 WNW
21st
 2.2 11.1 10.6 67 4.7 1.0 1020.8 fs 0.0 4.0 21 SSW
22nd
 8.8 12.3 12.2 72 7.3 0.0 1021.3 st 0.0 5.4 21 SSW
23rd
 5.9 10.8 10.1 83 7.4 0.0 1024.3 fs 0.0 3.2 18 SSW
24th
 8.4 13.7 13.3 68 7.5 3.2 1014.9 f 0.5 2.2 14 SSW
25th
 -0.1 10.4 10.2 63 3.5 4.7 1017.3 f 0.3 2.6 20 SW
26th
 8.9 12.3 11.8 51 2.0 4.5 1005.7 rs 3.0 5.8 28 SSW
27th
 3.2 10.6 10.3 60 2.8 3.3 1017.4 st 0.0 1.3 12 SSW
28th
 2.8 10.2 9.4 81 6.3 0.0 1017.4 fs 0.0 0.1 6 ESE
29th
 2.8 10.4 8.2 72 3.4 0.0 1010.8 fq 1.8 4.7 29 SSW
                       
‡ 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 approx 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