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NOVEMBER 2006 daily and monthly summary

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NOVEMBER 2006
December 2006


Note
A total hosepipe and sprinkler ban is in effect in South East Water & Mid Kent Water supply areas until further notice.
1st - 8th
A marked change from October with high pressure centred over the Irish Sea bringing cool and dry air with clear skies and sunshine. Fog with visibility c. 500m early morning of 6th, low cloud and mist on the 7th and 8th.
9th - 16th
High pressure builds again across the south resulting in another very sunny day on the 9th. Cloud spreads from the west on the 10th, bringing some light rain and showers overnight. Conditions remain generally dull and dry during daylight hours. Becoming very mild but breezy with LP to the N of Scotland and weak HP over Spain. Very dull on the 16th as a cold front crosses the region.
17th - 19th
Early showers on 17th am followed by 3 hours of persistent rain, some heavy, as another cold front passes through during the evening. The 18th and 19th were sunny days with mostly clear skies.
20th - 25th
Low pressure dominates, increasingly unsettled, often dull with spells of rain and showers during the night and early mornings. Strong, gusty winds and stormy on western coasts. Conditions change rapidly during every 24hr period. Two bands of rain on the early morning of the 25th, followed by thundery showers in the evening. Continuing changeable until the 28th.
29th - 30th
By the 29th high pressure stretches across Iberia and Italy while lows track across to the north, leading to a settled end to the month. Some shallow mist on the 29th giving way to sunny periods.

 NOVEMBER 2006 - MONTHLY SUMMARY
 TEMPERATURE
 Average Maximum 12.2
ºc 
 
 Average Minimum 6.2
ºc 
 
 Monthly Mean 8.9
ºc 
 
 Highest Maximum 15.3
ºc 
 (13th)
 Lowest Minimum -1.2
ºc 
 ( 4th )
 Air frosts 2
 
   
 
 AMBIENT TEMPERATURE
 Low Wind Chill -1.2
ºc 
 ( 4th)
 Low Heat Index (THW) -1.3
ºc 
 ( 4th)
 High Heat Index (THW) 14.9
ºc 
 (13th)
 High Sun Index (THSW) 17.8
ºc 
 (13th)
    
 
 RAINFALL
 Monthly Total 47.6
 mm
 
 Rainy Days (=>0.2mm) 14
 
 Inc days =>1mm) 10
 
 Dry Days 17
 
 Highest Daily Total 10.2
 mm
 (17th)
 Highest Rain Rate 34.8
 mm/hr
 (17th)
   
 EVAPO-TRANSPIRATION
 Highest Daily 1.0
 mm (23rd)
 Monthly Total 19.7
 mm
 WIND
 Monthly Average 2.4  mph  
 Highest Gust 31  mph (17th)
 Dominant Directions SSW  (59%)
SE  (  8%)
W  (  7%)
NNW  (  5%)
     
 SUNSHINE†
 Sunniest Day
4.0
 hrs ( 1st)
 Monthly Sunshine
45.9
 Hours
 Peak Solar Rad.
442
 w/m² (17th)
 Total Solar Energy
1976
 Langleys
 
   
 DEWPOINT
 Average at 14.00h 6.0 ºc
 Highest Reading 11.8 ºc   (14th)
 Lowest Reading -2.9 ºc   ( 4th)
 RELATIVE HUMIDITY
 Average at 14.00h 70 %
 Lowest Reading 51 % (9th)
 Monthly Average 79 %
 BAROMETER
 Monthly Mean 1013.9  hPa  
 Highest Reading 1035.8  hPa ( 9th)
 Lowest Reading 979.3  hPa (23rd)
‡ 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 50% of total possible sunshine exposure this month. 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.
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 2006
 
TEMPERATURE ºc
HUMIDITY
SUN ‡
PRESSURE
RAINFALL
WIND SPEED
DIRECTION
DATE
Minimum
(21-09h)
Maximum
(09-21h)
RH %
at 14.00
Dewpoint ºc
at 14.00
Bright
sun hrs
hPa   †
at 14.00
Day Total
(mm)
Average
(mph)
High Gust
(mph)
Dominant
(Compass)
                   
1st
3.2 9.4 57 1.1 4.0 1028.7 rs 0.0 2.2 18 NNW
2nd
2.2 9.3 54 0.4 4.0 1032.7 fs 0.0 1.1 12 NNW
3rd
2.5 11.4 58 3.0 3.8 1032.8 fs 0.0 0.4 10 N
4th
-1.2 11.6 58 3.4 3.8 1033.8 f 0.0 0.4 9 SSW
5th
1.4 13.3 65 6.5 3.8 1029.7 f 0.0 0.6 10 SSW
6th
1.4 13.4 65 6.5 3.8 1026.9 f 0.0 0.2 6 SSW
7th
2.9 10.6 77 6.6 0.7 1019.2 f 0.0 0.3 6 SE
8th
6.8 14.1 84 11.1 0.0 1018.4 fs 0.0 2.3 16 SSW
9th
6.7 11.4 53 1.9 3.8 1032.5 rs 0.0 1.0 12 N
10th
-0.5 10.6 68 4.9 0.5 1028.7 f 1.8 1.1 12 SSW
11th
8.9 11.2 64 3.8 0.7 1018.2 f 3.3 3.1 18 SSW
12th
7.1 11.0 62 3.9 2.2 1021.0 fs 0.0 1.9 16 SSW
13th
9.9 15.3 69 8.9 0.8 1007.0 st 0.0 4.3 21 SSW
14th
11.4 13.8 87 11.5 0.0 1006.6 fs 0.0 3.9 20 SSW
15th
12.3 14.3 75 9.6 0.3 1002.4 f 0.5 3.5 17 SSW
16th
12.7 14.8 87 7.3 0.0 995.8 r 3.0 2.3 18 SSW
17th
5.7 12.9 71 7.8 0.5 997.6 fs 10.2 3.6 31 SSW
18th
2.7 10.6 58 2.1 3.3 1013.4 rs 0.3 1.2 13 SSW
19th
0.1 10.8 62 3.2 3.3 1016.1 fs 0.0 2.1 24 SSW
20th
9.3 12.9 79 9.4 0.3 1001.1 fs 5.6 3.9 22 SSW
21st
5.9 7.9 66 1.9 1.0 995.1 f 0.0 2.5 16 SSW
22nd
3.2 11.9 75 5.2 0.0 993.8 f 0.8 2.7 18 SSW
23rd
10.8 13.3 63 5.7 1.5 984.6 rs 4.8 5.9 25 SSW
24th
7.8 13.2 80 9.0 0.0 989.1 f 2.3 3.4 26 SE
25th
12.4 14.8 81 6.8 0.7 994.3 rq 8.6 5.3 35 SSW
26th
7.8 13.8 74 8.7 0.8 1012.4 rs 0.0 3.2 20 SSW
27th
10.5 13.5 74 8.9 0.0 1011.8 rs 1.5 3.8 22 SSW
28th
11.4 12.6 80 8.5 0.3 1011.8 rs 4.6 2.6 13 SSW
29th
3.6 12.9 72 7.6 1.3 1029.0 rs 0.3 1.6 17 SSW
30th
7.5 10.5 76 5.3 0.7 1026.0 f 0.0 2.4 20 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 only 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