London, United Kingdom

3:37 AM BST on October 17, 2017 (GMT +0100)
Heathrow

Weather History for EGLL - September, 2013

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Wednesday, September 4, 2013

  Actual Average Record
Temperature  
Mean Temperature 70 °F -  
Max Temperature 83 °F 65 °F 84 °F (2005)
Min Temperature 56 °F 51 °F 44 °F (2000)
Cooling Degree Days 4    
Growing Degree Days 20 (Base 50)    
Moisture  
Dew Point 56 °F    
Average Humidity 64    
Maximum Humidity 100    
Minimum Humidity 24    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.14 in    
Wind  
Wind Speed 4 mph ()    
Max Wind Speed 12 mph    
Max Gust Speed -    
Visibility 7.4 miles    
Events Fog    
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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Daily Weather History Graph

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Date:

Astronomy

Sep. 04, 2013 Rise Set
Actual Time 6:19 AM BST 7:41 PM BST
Civil Twilight 5:44 AM BST 8:15 PM BST
Nautical Twilight 5:02 AM BST 8:57 PM BST
Astronomical Twilight 4:16 AM BST 9:43 PM BST
Moon 5:15 AM BST (9/4) 6:50 PM BST (9/4)
Length of Visible Light 14h 30m
Length of Day
13h 21m
Waning Crescent, 1% of the Moon is Illuminated
Sep 4
Waning Crescent
Sep 5
New
Sep 12
First Quarter
Sep 19
Full
Sep 27
Last Quarter

Hourly Weather History & Observations

Time (BST) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:20 AM 64.4 °F - 59.0 °F 83% 30.27 in - South 5.8 mph - N/A   Clear
12:50 AM 62 °F - 58 °F 82% 30.27 in 9 mi SSE 1.2 mph - -  
12:50 AM 62.6 °F - 59.0 °F 88% 30.27 in - SSE 4.6 mph - N/A   Clear
1:20 AM 62.6 °F - 59.0 °F 88% 30.27 in 6.2 mi Calm Calm - N/A   Unknown
1:50 AM 60.8 °F - 59.0 °F 94% 30.27 in 6.2 mi SW 2.3 mph - N/A   Unknown
2:20 AM 60.8 °F - 59.0 °F 94% 30.24 in 6.2 mi Calm Calm - N/A   Unknown
2:50 AM 60.8 °F - 59.0 °F 94% 30.24 in - NNW 2.3 mph - N/A   Clear
3:20 AM 57.2 °F - 57.2 °F 100% 30.24 in - North 2.3 mph - N/A   Clear
3:50 AM 57.2 °F - 57.2 °F 100% 30.24 in - North 3.5 mph - N/A   Clear
4:20 AM 57.2 °F - 55.4 °F 94% 30.24 in - Calm Calm - N/A   Clear
4:50 AM 55.4 °F - 55.4 °F 100% 30.24 in - Calm Calm - N/A   Clear
5:20 AM 57.2 °F - 55.4 °F 94% 30.21 in - East 2.3 mph - N/A   Clear
5:50 AM 57.2 °F - 55.4 °F 94% 30.21 in 5.0 mi Calm Calm - N/A   Unknown
6:20 AM 57.2 °F - 55.4 °F 94% 30.21 in 5.0 mi Calm Calm - N/A Fog Fog
6:50 AM 58 °F - 56 °F 93% 30.22 in 8 mi NNE 2.3 mph - -  
6:50 AM 57.2 °F - 55.4 °F 94% 30.21 in 5.6 mi Calm Calm - N/A Fog Fog
7:20 AM 59.0 °F - 57.2 °F 94% 30.21 in 5.6 mi Calm Calm - N/A Fog Fog
7:50 AM 62.6 °F - 59.0 °F 88% 30.21 in 5.0 mi Calm Calm - N/A Fog Fog
8:20 AM 64.4 °F - 59.0 °F 83% 30.21 in 5.6 mi Variable 2.3 mph - N/A Fog Fog
8:50 AM 66.2 °F - 59.0 °F 78% 30.21 in 5.6 mi Variable 2.3 mph - N/A   Unknown
9:20 AM 69.8 °F - 60.8 °F 73% 30.21 in 5.6 mi East 4.6 mph - N/A   Unknown
9:50 AM 71 °F - 59 °F 57% 30.20 in 10 mi ESE 6.9 mph - -  
9:50 AM 71.6 °F - 59.0 °F 64% 30.21 in - ESE 6.9 mph - N/A   Clear
10:20 AM 73.4 °F - 59.0 °F 61% 30.18 in - ESE 5.8 mph - N/A   Clear
10:50 AM 75.2 °F - 60.8 °F 61% 30.18 in - East 5.8 mph - N/A   Clear
11:20 AM 77.0 °F - 59.0 °F 54% 30.18 in - SE 5.8 mph - N/A   Clear
11:50 AM 77.0 °F - 59.0 °F 54% 30.18 in 6.2 mi SE 8.1 mph - N/A   Unknown
12:20 PM 80.6 °F 80.8 °F 57.2 °F 45% 30.15 in 6.2 mi SSE 9.2 mph - N/A   Partly Cloudy
12:50 PM 79 °F - 56 °F 34% 30.15 in 22 mi SSE 10.4 mph - -  
12:50 PM 80.6 °F 80.5 °F 55.4 °F 42% 30.15 in - SSE 11.5 mph - N/A   Clear
1:20 PM 80.6 °F 80.5 °F 55.4 °F 42% 30.12 in 6.2 mi SSE 5.8 mph - N/A   Partly Cloudy
1:50 PM 80.6 °F - 51.8 °F 37% 30.12 in 6.2 mi SSE 8.1 mph - N/A   Unknown
2:20 PM 82.4 °F - 51.8 °F 35% 30.12 in - South 9.2 mph - N/A   Clear
2:50 PM 82.4 °F - 51.8 °F 35% 30.09 in - South 9.2 mph - N/A   Clear
3:20 PM 82.4 °F - 51.8 °F 35% 30.09 in - SSE 8.1 mph - N/A   Clear
3:50 PM 83 °F - 52 °F 24% 30.08 in 19 mi SE 10.4 mph - -  
3:50 PM 82.4 °F - 50.0 °F 32% 30.06 in - SSE 10.4 mph - N/A   Clear
4:20 PM 82.4 °F - 51.8 °F 35% 30.06 in - SSE 8.1 mph - N/A   Clear
4:50 PM 82.4 °F - 51.8 °F 35% 30.06 in - SSE 9.2 mph - N/A   Clear
5:20 PM 82.4 °F - 51.8 °F 35% 30.04 in - SSE 9.2 mph - N/A   Clear
5:50 PM 80.6 °F - 51.8 °F 37% 30.04 in - SSE 9.2 mph - N/A   Clear
6:20 PM 80.6 °F - 51.8 °F 37% 30.04 in 6.2 mi SSE 9.2 mph - N/A   Unknown
6:50 PM 78 °F - 52 °F 29% 30.03 in 28 mi SSE 10.4 mph - -  
6:50 PM 78.8 °F - 50.0 °F 36% 30.04 in - SSE 9.2 mph - N/A   Clear
7:20 PM 77.0 °F - 51.8 °F 41% 30.04 in - SSE 9.2 mph - N/A   Clear
7:50 PM 75.2 °F - 51.8 °F 44% 30.04 in - SSE 9.2 mph - N/A   Clear
8:20 PM 73.4 °F - 55.4 °F 53% 30.04 in - South 5.8 mph - N/A   Clear
8:50 PM 71.6 °F - 57.2 °F 60% 30.04 in - South 6.9 mph - N/A   Clear
9:20 PM 69.8 °F - 55.4 °F 60% 30.04 in - South 4.6 mph - N/A   Clear
9:50 PM 70 °F - 55 °F 49% 30.03 in 16 mi South 3.5 mph - -  
9:50 PM 68.0 °F - 55.4 °F 64% 30.04 in - Variable 3.5 mph - N/A   Clear
10:20 PM 64.4 °F - 55.4 °F 73% 30.04 in - East 5.8 mph - N/A   Clear
10:50 PM 64.4 °F - 55.4 °F 73% 30.04 in - Variable 6.9 mph - N/A   Clear
11:20 PM 64.4 °F - 57.2 °F 77% 30.01 in - East 5.8 mph - N/A   Clear
11:50 PM 64.4 °F - 59.0 °F 83% 30.01 in - ENE 3.5 mph - N/A   Clear