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NOVEMBER 2008 daily and monthly summary

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NOVEMBER 2008
December 2008

1st - 6th
Mostly very gloomy, overcast and damp. Extended LP area over W Europe. Minimum 995 hpa, Biscay. Rain from occlusion starting midmorning of 1st through to the evening and showers later. Fog to midmorning of 2nd becoming brighter. Little change in LP position, more rain from cold front late pm into evening of 3rd and drizzle late evening of 5th. More drizzle and rain evening of 6th through to early morning 7th.
7th - 14th
Very unsettled. Low 988 hpa, S Ireland, filling slowly - situation becomes more mobile from the W. Drizzle and light rain morning of 8th through to early pm, heavy showers from early evening to midnight with passage of cold front. Showers on the 9th with squalls just before midnight. Low 965 hpa, NW close to Scotland, filling while drifting SE. Rain from 07.30 to late night on the 10th, occasionally heavy and blustery. Becoming more settled from the onwards. By 13th HP 1033 hpa, halfway between Azores and Iberia, drifting slowly NE. Drizzle during 13th pm.
15th - 21st
HP 1031 hpa, Biscay, strengthening slightly, LP to N of Shetland Islands. Rain shower mid pm of 16th. 17th, HP 1035 hpa, from southern North Sea to W of Brittany, drifting NW while strengthening, LP 1012 hpa to NW of Ireland with warm front bringing drizzle pm. Some drizzle early morning 18th and pm of 19th. 20th, HP 1041 hpa, far W of Ireland, almost stationary. LP 983 hpa, S Norway, drifting E while deepening. Showers early am and evening on 21st.
22nd - 26th
HP 1043 hpa, far W of Ireland, almost stationary, weakening. Extended LP area 985 hpa over Baltic Lands and NE Russia, filling slowly. 23rd, Satellite LP 982 hpa, NW of Scotland; moving SE bringing light to moderate snow for 1.5 hours just after dawn, which gave a dusting of cover before turning to rain later. 24th, LP 960 hpa, Baltic Lands, filling. Satellite LP 985 hpa, NE France, drifting E while filling. Light rain am, followed by showers later. 26th, HP 1038 hpa, far W of Ireland, weakening slowly, but extending a ridge 1024 hpa to S Germany.
27th - 30th
A gloomy and wet period. LP 990 hpa, Biscay, drifting slowly east while deepening. A very slow moving front stalls near the SE on the 28th bringing light rain for virtually the whole day. Intermittent light rain on pm 29th and pre dawn 30th.

MONTHLY SUMMARY NOVEMBER 2008
ACTUAL TEMPERATURE
 AVERAGE
 Daily Maximum
9.8
 ºC ( -0.5C )*
 Daily Minimum
5.9
 ºC ( +1.6C )*
 Daily Mean
7.8
 ºC ( +0.2C )*
 EXTREMES
 High Maximum
13.9
 ºC ( 15th )
 Low Minimum
-1.6
 ºC ( 23rd )
 Low Maximum
4.3
 ºC ( 29th )
 High Minimum
11.4
 ºC ( 16th )
 
   
 Days with max => 10 °C
18
   
 Days with max =< 10 °C
12
   
 Days with Air Frosts
2
   
 
PRECIPITATION
 Monthly Total
92.0
 mm ( 129% )*
 Days with measurable precip
22
 Days ( +6 )
   ...of which, days with >= 1.0 mm
14
 Days ( +2 )
   ...and days with snowfall observed
1
 Days  
 Days with Snow Cover
0.1
 Days  
 Days with Thunder
0
 Days  
 RAIN RATE & EXTREMES
 High Rain Rate
20.8
 mm/hr (   9th )
 High Rain Total in 1 day
22.1
 mm ( 10th )
 High Rain Total in 1 hour
4.6
 mm (10th, 1510h)
 EVAPO-TRANSPIRATION
 Total for month
16.9
 mm  
 High Total for 1 day
1.2
 mm ( 24th)
APPARENT TEMPERATURE
 Low Wind Chill
-2.3
 ºC ( 23rd )
 DAVIS HEAT INDICES THW & THSW
 Low Temp/Hum/Wind Index
-1.9
 ºC ( 23rd )
 High Temp/Hum/Wind Index
13.6
 ºC ( 15th)
 High Temp/Hum/Sun/Wind Index
17.4
 ºC ( 14th )
 
DEWPOINT & HUMIDITY
 High Dewpoint
10.7
 ºC ( 10th )
 Low Dewpoint
-6.8
 ºC ( 23rd )
 Average Dewpoint at 14h
5.2
 ºC  
 Low Relative Humidity
44
 % ( 21st )
 Average RH at 14h
78
 %  
WIND SPEED & DIRECTION
 Monthly Average
2.2
 mph  
 Windiest day (Average)
6.3
 mph ( 9th )
 Highest Gust
34
 mph ( 9th )
 Dominant Direction
SW
 ( 33% )
 
BAROMETER
 Monthly Mean
1012.2
 hPa  
 High Barometer
1034.7
 hPa ( 17th )
 Low Barometer
987.1
 hPa ( 24th )
SUNSHINE
 Max Sensor Exposure to direct sun
4.5
 hours/day (8-9 possible)
 Calculated Monthly Sunshine Hours
19.1
 hours  
 Estimated Actual Hours (approx)
41.0
 hours  
 Sunniest Day Measured
2.5
 hours ( 7th )
 Days with no sunshine
12
 Days  
 
FOG
 Number of Days with Fog
1
 Days  
NEW RECORDS SET THIS MONTH
 
* deviation from average 1984 - 2007
‡ SUN:
Sunshine hours are calculated approximately and solely from solar radiation readings, but note that the solar sensor's exposure to sunshine is very limited during November. The sensor receives approx 50% 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

   DAILY STATS NOVEMBER 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
2.9 8.2 8.0 89 6.3 0.0 1001.8 F 14.7 1.4 17 N
2nd
6.1 10.8 10.4 91 9.0 1.8 1012.8 ST 0.5 0.1 6 SE
3rd
7.6 10.7 10.7 89 8.9 0.0 1012.4 ST 1.0 0.1 13 N
4th
7.4 11.9 11.8 90 10.2 0.5 1017.6 FS 0.0 0.2 7 SSE
5th
8.9 10.5 10.4 84 7.8 0.0 1015.2 ST 1.5 1.8 16 N
6th
9.0 10.3 10.2 91 8.8 0.0 1011.1 F 3.3 0.0 3 N
7th
8.0 12.1 11.6 65 5.2 2.5 1007.7 ST 2.5 1.7 13 SW
8th
8.0 11.9 11.2 89 9.4 0.1 1008.8 FS 11.9 3.5 22 SW
9th
6.3 11.6 11.3 69 5.8 0.7 1010.1 F 7.6 6.3 34 SW
10th
8.8 12.6 12.4 88 10.5 0.0 1000.1 F 22.1 5.4 30 SW
11th
7.3 11.0 10.2 56 1.8 2.2 1007.6 R 0.0 4.7 21 SW
12th
3.4 9.9 9.7 70 4.5 1.7 1016.9 RS 0.0 1.0 11 SW
13th
3.8 10.9 9.3 80 6.1 0.0 1022.6 FS 0.5 2.0 16 SW
14th
10.7 13.6 12.9 77 9.0 1.2 1023.6 FS 0.0 1.9 12 SSW
15th
10.6 13.9 13.8 74 9.3 0.8 1025.7 FS 0.0 2.6 14 SW
16th
11.4 12.9 11.6 84 9.0 0.0 1029.3 RS 1.0 1.4 11 SSW
17th
0.4 9.5 6.6 91 5.2 0.0 1026.9 F 0.8 1.1 13 SW
18th
9.1 10.4 10.4 77 6.5 0.5 1016.4 R 0.3 1.4 13 N
19th
5.7 11.8 11.6 65 5.2 1.2 1018.8 FS 0.3 1.8 13 SSW
20th
6.9 13.1 12.4 67 6.4 0.3 1015.8 FS 0.0 2.3 13 SW
21st
8.5 9.1 8.5 47 -2.2 1.2 1013.2 ST 0.8 4.3 28 N
22nd
1.8 5.2 4.3 53 -4.4 1.2 1015.1 FS 0.0 2.9 20 N
23rd
-1.6 6.9 6.6 84 4.0 1.0 990.7 F 3.8 2.0 19 SW
24th
2.9 5.9 5.2 75 1.1 1.5 1000.8 R 1.0 3.1 21 N
25th
2.3 5.9 5.8 77 0.7 0.8 1020.7 R 0.0 4.2 22 N
26th
-0.3 7.4 6.9 87 4.9 0.0 1024.7 F 1.8 0.8 12 SW
27th
7.7 11.2 10.9 76 6.8 0.3 1010.1 F 3.6 3.9 24 SW
28th
5.2 5.5 5.3 91 3.9 0.0 995.7 F 11.7 0.7 17 N
29th
3.4 4.3 4.2 91 2.8 0.0 992.0 ST 0.8 0.5 6 N
30th
4.2 5.8 5.8 80 2.6 0.0 991.1 ST 0.5 2.5 20 N
                       
‡ 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 60% 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