London, United Kingdom

10:08 AM BST on May 27, 2017 (GMT +0100)
Heathrow

Weather History for EGLL - September, 2011

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Friday, September 23, 2011

  Actual Average Record
Temperature  
Mean Temperature 56 °F -  
Max Temperature 65 °F 60 °F 77 °F (2000)
Min Temperature 47 °F 47 °F 44 °F (2003)
Degree Days  
Heating Degree Days 9    
Growing Degree Days 6 (Base 50)    
Moisture  
Dew Point 49 °F    
Average Humidity 77    
Maximum Humidity 94    
Minimum Humidity 56    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.06 in    
Wind  
Wind Speed 6 mph ()    
Max Wind Speed 13 mph    
Max Gust Speed -    
Visibility 7.9 miles    
Events      
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

Sep. 23, 2011 Rise Set
Actual Time 6:48 AM BST 6:58 PM BST
Civil Twilight 6:15 AM BST 7:32 PM BST
Nautical Twilight 5:36 AM BST 8:11 PM BST
Astronomical Twilight 4:54 AM BST 8:52 PM BST
Moon 1:27 AM BST (9/23) 4:46 PM BST (9/23)
Length of Visible Light 13h 16m
Length of Day
12h 10m
Waning Crescent, 21% of the Moon is Illuminated
Sep 23
Waning Crescent
Sep 27
New
Oct 4
First Quarter
Oct 12
Full
Oct 20
Last Quarter

Hourly Weather History & Observations

Time (BST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:20 AM 53.6 °F 48.2 °F 82% 30.12 in - West 5.8 mph - N/A   Clear
12:50 AM 52 °F 49 °F 84% 30.14 in 11 mi West 6.9 mph - -  
12:50 AM 51.8 °F 48.2 °F 88% 30.12 in - West 5.8 mph - N/A   Clear
1:20 AM 51.8 °F 48.2 °F 88% 30.12 in 6.2 mi WSW 5.8 mph - N/A   Unknown
1:50 AM 51.8 °F 48.2 °F 88% 30.12 in 6.2 mi WSW 3.5 mph - N/A   Unknown
2:20 AM 50.0 °F 48.2 °F 94% 30.12 in 6.2 mi West 4.6 mph - N/A   Unknown
2:50 AM 50.0 °F 48.2 °F 94% 30.12 in - SSW 3.5 mph - N/A   Clear
3:20 AM 50.0 °F 48.2 °F 94% 30.12 in - West 2.3 mph - N/A   Clear
3:50 AM 50 °F 48 °F 92% 30.12 in 9 mi West 2.3 mph - -  
4:20 AM 48.2 °F 46.4 °F 93% 30.12 in - Calm Calm - N/A   Clear
4:50 AM 48.2 °F 46.4 °F 93% 30.09 in - South 3.5 mph - N/A   Clear
5:20 AM 48.2 °F 46.4 °F 93% 30.09 in 5.6 mi South 4.6 mph - N/A   Unknown
5:50 AM 48.2 °F 46.4 °F 93% 30.09 in - SW 3.5 mph - N/A   Clear
6:20 AM 48.2 °F 46.4 °F 93% 30.09 in - SW 5.8 mph - N/A   Clear
6:50 AM 50 °F 48 °F 89% 30.10 in 9 mi SSW 5.8 mph - -  
6:50 AM 48.2 °F 46.4 °F 93% 30.09 in - SSW 5.8 mph - N/A   Clear
7:20 AM 48.2 °F 46.4 °F 93% 30.09 in - SW 4.6 mph - N/A   Clear
7:50 AM 50.0 °F 48.2 °F 94% 30.09 in - SW 6.9 mph - N/A   Clear
8:20 AM 50.0 °F 48.2 °F 94% 30.09 in - SW 5.8 mph - N/A   Clear
8:50 AM 51.8 °F 48.2 °F 88% 30.09 in - SSW 4.6 mph - N/A   Clear
9:20 AM 53.6 °F 50.0 °F 88% 30.09 in - SW 5.8 mph - N/A   Clear
9:50 AM - - %  in 10 mi SW 6.9 mph - -  
9:50 AM 55.4 °F 50.0 °F 82% 30.09 in - SW 8.1 mph - N/A   Clear
10:20 AM 57.2 °F 50.0 °F 77% 30.09 in 6.2 mi SW 8.1 mph - N/A   Partly Cloudy
10:50 AM 59.0 °F 50.0 °F 72% 30.09 in 6.2 mi WSW 9.2 mph - N/A   Partly Cloudy
11:20 AM 60.8 °F 48.2 °F 63% 30.09 in 6.2 mi West 11.5 mph - N/A   Partly Cloudy
11:50 AM 60.8 °F 48.2 °F 63% 30.09 in 6.2 mi SSW 12.7 mph - N/A   Partly Cloudy
12:20 PM 60.8 °F 48.2 °F 63% 30.06 in 6.2 mi WSW 11.5 mph - N/A   Scattered Clouds
12:50 PM 63 °F - % 30.08 in 14 mi WSW 9.2 mph - -   Partly Cloudy
12:50 PM 62.6 °F 50.0 °F 63% 30.06 in 6.2 mi West 10.4 mph - N/A   Scattered Clouds
1:20 PM 64.4 °F 48.2 °F 56% 30.06 in 6.2 mi SW 11.5 mph - N/A   Scattered Clouds
1:50 PM 64.4 °F 48.2 °F 56% 30.06 in 6.2 mi SW 10.4 mph - N/A   Scattered Clouds
2:20 PM 64.4 °F 50.0 °F 59% 30.04 in 6.2 mi SW 10.4 mph - N/A   Scattered Clouds
2:50 PM 64.4 °F 48.2 °F 56% 30.04 in 6.2 mi SSW 9.2 mph - N/A   Partly Cloudy
3:20 PM 64.4 °F 48.2 °F 56% 30.04 in 6.2 mi SSW 9.2 mph - N/A   Partly Cloudy
3:50 PM 65 °F - % 30.02 in 16 mi SSW 10.4 mph - -  
3:50 PM 64.4 °F 48.2 °F 56% 30.04 in 6.2 mi SW 9.2 mph - N/A   Partly Cloudy
4:20 PM 64.4 °F 48.2 °F 56% 30.01 in - SSW 8.1 mph - N/A   Clear
4:50 PM 64.4 °F 50.0 °F 59% 30.01 in - SSW 8.1 mph - N/A   Clear
5:20 PM 64.4 °F 50.0 °F 59% 30.01 in 6.2 mi SSW 9.2 mph - N/A   Partly Cloudy
5:50 PM 62.6 °F 50.0 °F 63% 30.01 in - SSW 10.4 mph - N/A   Clear
6:20 PM 60.8 °F 50.0 °F 68% 30.01 in - South 9.2 mph - N/A   Clear
6:50 PM 61 °F 50 °F 57% 30.00 in 12 mi South 10.4 mph - -   Scattered Clouds
6:50 PM 60.8 °F 50.0 °F 68% 30.01 in - SSW 8.1 mph - N/A   Clear
7:20 PM 59.0 °F 50.0 °F 72% 30.01 in - South 9.2 mph - N/A   Clear
7:50 PM 59.0 °F 50.0 °F 72% 30.01 in - South 9.2 mph - N/A   Clear
8:20 PM 59.0 °F 50.0 °F 72% 30.01 in - SSW 9.2 mph - N/A   Clear
8:50 PM 57.2 °F 50.0 °F 77% 30.01 in - SSW 8.1 mph - N/A   Clear
9:20 PM 57.2 °F 50.0 °F 77% 30.01 in - South 8.1 mph - N/A   Clear
9:50 PM 57 °F 51 °F 74% 30.00 in 11 mi South 6.9 mph - -   Overcast
9:50 PM 57.2 °F 50.0 °F 77% 30.01 in - South 6.9 mph - N/A   Clear
10:20 PM 55.4 °F 50.0 °F 82% 30.01 in - SSW 6.9 mph - N/A   Clear
10:50 PM 55.4 °F 50.0 °F 82% 30.01 in - SSW 6.9 mph - N/A   Clear
11:20 PM 53.6 °F 50.0 °F 88% 30.01 in - SSW 5.8 mph - N/A   Clear
11:50 PM 51.8 °F 50.0 °F 94% 30.01 in - SSW 4.6 mph - N/A   Clear