London, United Kingdom

6:35 AM GMT on November 23, 2017 (GMT +0000)
Heathrow

Weather History for EGLL - December, 2014

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Sunday, December 21, 2014

  Actual Average Record
Temperature  
Mean Temperature 46 °F -  
Max Temperature 54 °F 45 °F 55 °F (2011)
Min Temperature 38 °F 35 °F 26 °F (1998)
Degree Days  
Heating Degree Days 19    
Moisture  
Dew Point 43 °F    
Average Humidity 80    
Maximum Humidity 93    
Minimum Humidity 65    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.31 in    
Wind  
Wind Speed 13 mph ()    
Max Wind Speed 22 mph    
Max Gust Speed 29 mph    
Visibility 7.4 miles    
Events Rain    
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: Averaged Metar Reports

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Date:

Astronomy

Dec. 21, 2014 Rise Set
Actual Time 8:04 AM GMT 3:54 PM GMT
Civil Twilight 7:24 AM GMT 4:35 PM GMT
Nautical Twilight 6:41 AM GMT 5:18 PM GMT
Astronomical Twilight 6:00 AM GMT 5:59 PM GMT
Moon 6:57 AM GMT (12/21) 3:55 PM GMT (12/21)
Length of Visible Light 9h 10m
Length of Day
7h 50m
Waning Crescent, 0% of the Moon is Illuminated
Dec 21
Waning Crescent
Dec 22
New
Dec 28
First Quarter
Jan 5
Full
Jan 13
Last Quarter

Hourly Weather History & Observations

Time (GMT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:00 AM 41 °F - 37 °F 80% 30.46 in 17 mi SSW 8.1 mph - -  
12:20 AM 41.0 °F 35.8 °F 37.4 °F 87% 30.45 in - SW 8.1 mph - N/A   Clear
12:50 AM 41.0 °F 35.2 °F 37.4 °F 87% 30.48 in - WSW 9.2 mph - N/A   Clear
1:00 AM 40 °F - 37 °F 85% 30.48 in 15 mi SW 8.1 mph - -  
1:20 AM 41.0 °F 35.2 °F 37.4 °F 87% 30.45 in 6.2 mi WSW 9.2 mph - N/A   Partly Cloudy
1:50 AM 41.0 °F 35.2 °F 39.2 °F 93% 30.45 in 6.2 mi WSW 9.2 mph - N/A   Scattered Clouds
2:00 AM 41 °F - 38 °F 87% 30.46 in 17 mi WSW 9.2 mph - -   Scattered Clouds
2:20 AM 42.8 °F 36.6 °F 39.2 °F 87% 30.45 in 6.2 mi SW 11.5 mph - N/A   Mostly Cloudy
2:50 AM 42.8 °F 37.5 °F 39.2 °F 87% 30.42 in 6.2 mi SW 9.2 mph - N/A   Mostly Cloudy
3:00 AM 43 °F - 40 °F 85% 30.44 in 17 mi SW 9.2 mph - -   Scattered Clouds
3:20 AM 44.6 °F 38.8 °F 41.0 °F 87% 30.42 in 6.2 mi SW 11.5 mph - N/A   Mostly Cloudy
3:50 AM 44.6 °F 38.8 °F 41.0 °F 87% 30.42 in 6.2 mi SW 11.5 mph - N/A   Mostly Cloudy
4:00 AM 44 °F - 40 °F 80% 30.43 in 14 mi SW 11.5 mph - -   Mostly Cloudy
4:20 AM 44.6 °F 40.7 °F 41.0 °F 87% 30.42 in 6.2 mi SW 6.9 mph - N/A   Mostly Cloudy
4:50 AM 44.6 °F 40.2 °F 41.0 °F 87% 30.42 in 6.2 mi SW 8.1 mph - N/A   Mostly Cloudy
5:00 AM 44 °F - 41 °F 85% 30.42 in 22 mi SW 8.1 mph - - Rain Light Rain Showers
5:20 AM 44.6 °F 39.2 °F 41.0 °F 87% 30.39 in 6.2 mi SW 10.4 mph - N/A   Mostly Cloudy
5:50 AM 44.6 °F 38.1 °F 41.0 °F 87% 30.39 in 6.2 mi WSW 13.8 mph - N/A   Scattered Clouds
6:00 AM 45 °F - 41 °F 82% 30.40 in 37 mi SW 15.0 mph - - Rain Rain
6:20 AM 44.6 °F 38.4 °F 41.0 °F 87% 30.39 in 6.2 mi SW 12.7 mph - N/A   Mostly Cloudy
6:50 AM 44.6 °F 37.8 °F 41.0 °F 87% 30.36 in 6.2 mi WSW 15.0 mph - N/A   Mostly Cloudy
7:00 AM 45 °F - 42 °F 83% 30.38 in 34 mi SW 16.1 mph - - Rain Rain
7:20 AM 46.4 °F 40.1 °F 41.0 °F 81% 30.36 in 6.2 mi SW 15.0 mph - N/A   Mostly Cloudy
7:50 AM 46.4 °F 40.1 °F 41.0 °F 81% 30.36 in 6.2 mi WSW 15.0 mph - N/A   Mostly Cloudy
8:00 AM 46 °F - 42 °F 79% 30.38 in 25 mi SW 17.3 mph - -   Mostly Cloudy
8:20 AM 46.4 °F 40.1 °F 41.0 °F 81% 30.36 in 6.2 mi SW 15.0 mph - N/A   Scattered Clouds
8:50 AM 46.4 °F 40.1 °F 41.0 °F 81% 30.36 in 6.2 mi WSW 15.0 mph - N/A   Mostly Cloudy
9:00 AM 46 °F - 41 °F 77% 30.37 in 31 mi WSW 18.4 mph - -   Mostly Cloudy
9:20 AM 46.4 °F 39.5 °F 41.0 °F 81% 30.36 in 6.2 mi WSW 17.3 mph - N/A   Mostly Cloudy
9:50 AM 46.4 °F 40.1 °F 41.0 °F 81% 30.36 in 6.2 mi WSW 15.0 mph - N/A   Mostly Cloudy
10:00 AM 47 °F - 41 °F 73% 30.36 in 44 mi WSW 16.1 mph - -   Mostly Cloudy
10:20 AM 48.2 °F - 41.0 °F 76% 30.36 in 6.2 mi WSW 16.1 mph - N/A   Mostly Cloudy
10:50 AM 48.2 °F - 41.0 °F 76% 30.33 in 6.2 mi WSW 19.6 mph - N/A   Scattered Clouds
11:00 AM 50 °F - 42 °F 66% 30.35 in 28 mi WSW 21.9 mph - -   Partly Cloudy
11:20 AM 50.0 °F - 41.0 °F 71% 30.33 in 6.2 mi WSW 19.6 mph - N/A   Mostly Cloudy
11:50 AM 50.0 °F - 41.0 °F 71% 30.33 in 6.2 mi WSW 18.4 mph - N/A   Mostly Cloudy
12:00 PM 49 °F - 41 °F 67% 30.34 in 19 mi WSW 21.9 mph - -   Scattered Clouds
12:20 PM 50.0 °F - 42.8 °F 76% 30.33 in 6.2 mi WSW 19.6 mph - N/A   Mostly Cloudy
12:50 PM 50.0 °F - 42.8 °F 76% 30.30 in 6.2 mi WSW 20.7 mph - N/A   Mostly Cloudy
1:00 PM 50 °F - 42 °F 66% 30.32 in 47 mi WSW 20.7 mph - -   Mostly Cloudy
1:20 PM 50.0 °F - 42.8 °F 76% 30.30 in 6.2 mi WSW 19.6 mph - N/A   Mostly Cloudy
1:50 PM 50.0 °F - 42.8 °F 76% 30.27 in 6.2 mi WSW 19.6 mph - N/A   Mostly Cloudy
2:00 PM 50 °F - 42 °F 65% 30.28 in 28 mi WSW 19.6 mph - -   Overcast
2:20 PM 50.0 °F - 42.8 °F 76% 30.27 in 6.2 mi WSW 18.4 mph - N/A   Mostly Cloudy
2:50 PM 50.0 °F - 42.8 °F 76% 30.27 in 6.2 mi WSW 18.4 mph - N/A   Mostly Cloudy
3:00 PM 51 °F - 43 °F 65% 30.27 in 22 mi WSW 20.7 mph - -   Overcast
3:20 PM 51.8 °F - 42.8 °F 71% 30.27 in 6.2 mi WSW 19.6 mph - N/A   Mostly Cloudy
3:50 PM 50.0 °F - 42.8 °F 76% 30.24 in 6.2 mi WSW 20.7 mph - N/A   Mostly Cloudy
4:00 PM 51 °F - 43 °F 66% 30.26 in 28 mi WSW 21.9 mph - -   Overcast
4:20 PM 50.0 °F - 44.6 °F 82% 30.24 in 6.2 mi WSW 16.1 mph - N/A   Mostly Cloudy
4:50 PM 50.0 °F - 44.6 °F 82% 30.24 in 6.2 mi WSW 18.4 mph - N/A   Mostly Cloudy
5:00 PM 50 °F - 44 °F 72% 30.25 in 31 mi SW 17.3 mph - -   Scattered Clouds
5:20 PM 50.0 °F - 44.6 °F 82% 30.21 in 6.2 mi WSW 15.0 mph 28.8 mph N/A   Scattered Clouds
5:50 PM 50.0 °F - 44.6 °F 82% 30.21 in 6.2 mi SW 18.4 mph - N/A   Mostly Cloudy
6:00 PM 51 °F - 45 °F 73% 30.22 in 28 mi SW 17.3 mph - -   Scattered Clouds
6:20 PM 51.8 °F - 46.4 °F 82% 30.21 in 6.2 mi WSW 18.4 mph - N/A   Mostly Cloudy
6:50 PM 51.8 °F - 46.4 °F 82% 30.21 in 6.2 mi WSW 21.9 mph - N/A   Mostly Cloudy
7:00 PM 51 °F - 47 °F 80% 30.22 in 22 mi SW 20.7 mph - -   Partly Cloudy
7:20 PM 51.8 °F - 48.2 °F 88% 30.21 in 6.2 mi SW 18.4 mph - N/A   Mostly Cloudy
7:50 PM 51.8 °F - 48.2 °F 88% 30.21 in 6.2 mi SW 17.3 mph - N/A   Mostly Cloudy
8:00 PM 52 °F - 48 °F 80% 30.22 in 25 mi SW 19.6 mph - -   Mostly Cloudy
8:20 PM 51.8 °F - 48.2 °F 88% 30.18 in 6.2 mi SW 18.4 mph - N/A   Mostly Cloudy
8:50 PM 53.6 °F - 48.2 °F 82% 30.18 in 6.2 mi SW 18.4 mph - N/A   Mostly Cloudy
9:00 PM 53 °F - 48 °F 79% 30.19 in 25 mi SW 20.7 mph - -   Overcast
9:20 PM 53.6 °F - 48.2 °F 82% 30.18 in 6.2 mi WSW 18.4 mph - N/A   Mostly Cloudy
9:50 PM 53.6 °F - 48.2 °F 82% 30.18 in 6.2 mi WSW 19.6 mph - N/A   Mostly Cloudy
10:00 PM 53 °F - 49 °F 80% 30.18 in 28 mi WSW 20.7 mph - -   Overcast
10:20 PM 53.6 °F - 48.2 °F 82% 30.18 in 6.2 mi WSW 20.7 mph - N/A   Mostly Cloudy
10:50 PM 53.6 °F - 48.2 °F 82% 30.18 in 6.2 mi WSW 19.6 mph - N/A   Mostly Cloudy
11:00 PM 54 °F - 48 °F 74% 30.17 in 25 mi SW 19.6 mph - -   Mostly Cloudy
11:20 PM 53.6 °F - 48.2 °F 82% 30.15 in 6.2 mi WSW 20.7 mph - N/A   Mostly Cloudy
11:50 PM 53.6 °F - 48.2 °F 82% 30.15 in 6.2 mi SW 18.4 mph - N/A   Mostly Cloudy