Weather History for EGLL - December, 2009

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Month of December, 2009

  Max Avg Min Sum
Temperature  
Max Temperature 55 °F 44 °F 33 °F
Mean Temperature 52 °F 39 °F 30 °F
Min Temperature 48 °F 35 °F 23 °F
Degree Days  
Heating Degree Days (base 65) 34 26 14 802
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 2 0 0 2
Dew Point  
Dew Point 52 °F 36 °F 19 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth - - - -
Wind  
Wind 22 mph 8 mph 0 mph
Gust Wind 33 mph 28 mph 21 mph
Sea Level Pressure  
Sea Level Pressure 30.54 in 29.71 in 29.03 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 12, 2009 Rise Set
Actual Time 7:58 AM GMT 3:52 PM GMT
Civil Twilight 7:18 AM GMT 4:32 PM GMT
Nautical Twilight 6:35 AM GMT 5:15 PM GMT
Astronomical Twilight 5:54 AM GMT 5:56 PM GMT
Moon 3:46 AM GMT (12/12) 1:02 PM GMT (12/12)
Length of Visible Light 9h 14m
Length of Day
7h 54m
Waning Crescent, 16% of the Moon is Illuminated
Dec 12
Waning Crescent
Dec 16
New
Dec 24
First Quarter
Dec 31
Full
Jan 7
Last Quarter

Daily Weather History & Observations

2009 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 42 37 32 39 34 30 93 83 70 29.95 29.85 29.68 6 6 5 12 6 - 0.00 Rain
2 51 46 42 46 45 39 100 90 76 29.65 29.46 29.33 6 6 4 13 9 - 0.00 Rain
3 46 40 35 45 38 32 100 84 66 29.62 29.47 29.33 6 6 5 21 9 - 0.00 Rain
4 48 40 35 46 36 32 100 84 71 29.80 29.72 29.59 6 6 3 14 10 - 0.00 Rain
5 53 50 46 50 46 41 100 87 71 29.56 29.50 29.44 6 6 3 15 11 - 0.00 Rain
6 55 50 44 52 44 39 94 79 62 29.65 29.44 29.24 6 6 6 22 16 32 0.00 Rain
7 51 46 41 46 43 37 93 85 81 29.65 29.52 29.39 6 6 3 21 11 29 0.00 Rain
8 51 46 41 50 42 37 94 85 71 29.89 29.83 29.59 6 6 3 13 9 - 0.00 Rain
9 55 52 48 52 49 46 100 93 82 30.15 30.06 29.89 6 5 4 10 6 - 0.00 Rain
10 51 45 39 48 42 37 93 83 67 30.48 30.35 30.12 6 6 4 14 9 - 0.00 Rain
11 46 39 32 43 38 32 100 93 87 30.54 30.51 30.48 6 4 0 8 4 - 0.00 Fog
12 48 44 39 41 38 36 93 88 71 30.51 30.46 30.42 6 6 4 9 5 - 0.00  
13 44 40 37 37 37 36 93 85 71 30.42 30.34 30.27 6 6 6 13 7 - 0.00 Rain
14 41 37 33 37 36 32 100 90 81 30.27 30.18 30.09 6 4 1 6 4 - 0.00 Rain
15 37 34 32 36 31 27 93 83 70 30.09 30.09 30.06 6 4 3 9 5 - 0.00  
16 39 32 26 37 30 25 100 91 80 30.09 29.89 29.74 4 2 0 12 5 - 0.00 Fog , Rain , Snow
17 39 34 30 37 31 23 100 84 65 29.86 29.81 29.74 6 5 1 16 8 26 0.00 Rain , Snow
18 33 32 30 32 29 25 100 85 75 30.01 29.95 29.80 6 6 1 20 12 33 0.00 Snow
19 35 30 26 30 25 21 87 81 75 29.98 29.84 29.56 6 6 6 12 7 - 0.00  
20 35 32 28 32 27 19 93 79 65 29.53 29.49 29.47 6 6 6 15 11 - 0.00 Rain , Snow
21 37 32 26 34 30 25 100 91 80 29.47 29.26 29.06 6 4 1 9 5 - 0.00 Rain , Snow
22 37 32 26 34 31 25 100 92 81 29.24 29.14 29.03 6 5 1 12 5 - 0.00 Fog , Rain , Snow
23 41 32 23 39 30 23 100 95 87 29.27 29.25 29.21 6 3 0 14 4 - 0.00 Fog , Rain , Thunderstorm
24 42 40 37 39 37 34 100 91 87 29.21 29.17 29.09 6 6 2 10 7 - 0.00 Rain
25 41 38 35 39 35 32 100 90 76 29.62 29.47 29.18 6 5 2 14 8 - 0.00 Rain
26 48 44 41 43 41 37 93 87 76 29.59 29.53 29.47 6 6 5 16 9 - 0.00 Rain
27 44 40 35 39 35 32 93 78 66 29.68 29.51 29.42 6 6 6 22 12 - 0.00  
28 41 36 30 36 32 27 100 89 81 29.68 29.65 29.56 6 5 3 9 4 - 0.00  
29 41 38 35 37 36 34 93 89 81 29.56 29.37 29.24 6 4 1 17 11 30 0.00 Rain
30 41 39 37 39 38 36 100 93 87 29.44 29.31 29.21 6 4 1 12 8 - 0.00 Rain
31 39 36 33 36 33 28 93 81 75 29.56 29.50 29.44 6 6 6 12 9 - 0.00