London, United Kingdom

3:39 PM GMT on February 20, 2017 (GMT +0000)
Heathrow

Weather History for EGLL - December, 2011

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Week of December 18, 2011 through December 24, 2011

  Max Avg Min Sum
Temperature  
Max Temperature 55 °F 49 °F 42 °F
Mean Temperature 50 °F 43 °F 36 °F
Min Temperature 46 °F 37 °F 28 °F
Degree Days  
Heating Degree Days (base 65) 29 22 16 153
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 52 °F 40 °F 27 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth - - - -
Wind  
Wind 17 mph 9 mph 0 mph
Gust Wind 32 mph 28 mph 25 mph
Sea Level Pressure  
Sea Level Pressure 30.45 in 30.10 in 29.80 in

Weekly Weather History Graph

Weekly Weather History Graph

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Date:

Astronomy

Dec. 18, 2011 Rise Set
Actual Time 8:02 AM GMT 3:53 PM GMT
Civil Twilight 7:22 AM GMT 4:33 PM GMT
Nautical Twilight 6:39 AM GMT 5:16 PM GMT
Astronomical Twilight 5:58 AM GMT 5:57 PM GMT
Moon 12:07 AM GMT (12/18) 11:46 AM GMT (12/18)
Length of Visible Light 9h 11m
Length of Day
7h 50m
Last Quarter, 45% of the Moon is Illuminated
Dec 18
Last Quarter
Dec 24
New
Jan 1
First Quarter
Jan 9
Full
Jan 16
Last Quarter

Daily Weather History & Observations

2011 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  
18 42 37 30 36 31 28 93 83 70 30.09 30.02 29.95 6 6 4 16 8 - 0.00 Rain
19 44 36 28 43 36 27 93 92 87 30.09 29.95 29.80 6 6 3 15 5 - 0.00 Rain
20 46 44 41 41 38 36 93 80 66 30.12 29.99 29.83 6 6 5 15 8 25 0.00 Rain
21 55 48 42 52 47 41 100 91 82 30.21 30.06 29.95 6 5 1 13 7 - 0.00 Rain
22 53 50 46 48 46 45 93 84 76 30.30 30.26 30.21 6 6 6 14 10 - 0.00  
23 53 47 39 48 43 34 94 82 76 30.21 30.05 29.80 6 6 4 17 13 32 0.00 Rain
24 48 42 35 43 37 32 87 80 71 30.45 30.36 30.21 6 6 6 16 11 28 0.00 Rain