London, United Kingdom

6:37 PM BST on August 20, 2017 (GMT +0100)
Heathrow

Weather History for EGLL - August, 2014

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Friday, August 22, 2014

  Actual Average Record
Temperature  
Mean Temperature 62 °F -  
Max Temperature 69 °F 68 °F 87 °F (2015)
Min Temperature 54 °F 53 °F 50 °F (1999)
Degree Days  
Heating Degree Days 4    
Growing Degree Days 12 (Base 50)    
Moisture  
Dew Point 48 °F    
Average Humidity 63    
Maximum Humidity 88    
Minimum Humidity 25    
Precipitation  
Precipitation 0.02 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.86 in    
Wind  
Wind Speed 9 mph ()    
Max Wind Speed 16 mph    
Max Gust Speed -    
Visibility 10.0 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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Daily Weather History Graph

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Date:

Astronomy

Aug. 22, 2014 Rise Set
Actual Time 5:58 AM BST 8:10 PM BST
Civil Twilight 5:21 AM BST 8:46 PM BST
Nautical Twilight 4:36 AM BST 9:31 PM BST
Astronomical Twilight 3:43 AM BST 10:23 PM BST
Moon 2:58 AM BST (8/22) 6:16 PM BST (8/22)
Length of Visible Light 15h 24m
Length of Day
14h 11m
Waning Crescent, 9% of the Moon is Illuminated
Aug 22
Waning Crescent
Aug 25
New
Sep 2
First Quarter
Sep 9
Full
Sep 16
Last Quarter

Hourly Weather History & Observations

Time (BST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:00 AM 58 °F 47 °F 58% 29.89 in 19 mi SW 9.2 mph - -   Overcast
12:20 AM 57.2 °F 48.2 °F 72% 29.89 in 6.2 mi SW 9.2 mph - N/A   Partly Cloudy
12:50 AM 57.2 °F 48.2 °F 72% 29.89 in 6.2 mi SW 9.2 mph - N/A   Partly Cloudy
1:00 AM 57 °F 47 °F 59% 29.88 in 22 mi SW 11.5 mph - -   Scattered Clouds
1:20 AM 55.4 °F 48.2 °F 77% 29.86 in 6.2 mi SW 11.5 mph - N/A   Scattered Clouds
1:50 AM 55.4 °F 48.2 °F 77% 29.86 in 6.2 mi SSW 8.1 mph - N/A   Unknown
2:00 AM 56 °F 47 °F 63% 29.86 in 19 mi SSW 9.2 mph - -   Mostly Cloudy
2:20 AM 55.4 °F 48.2 °F 77% 29.86 in 6.2 mi SW 9.2 mph - N/A   Unknown
2:50 AM 55.4 °F 48.2 °F 77% 29.86 in 6.2 mi SW 9.2 mph - N/A   Partly Cloudy
3:00 AM 55 °F 48 °F 70% 29.85 in 19 mi SW 6.9 mph - -   Mostly Cloudy
3:20 AM 55.4 °F 48.2 °F 77% 29.83 in - SW 8.1 mph - N/A   Clear
3:50 AM 55.4 °F 48.2 °F 77% 29.83 in - SW 9.2 mph - N/A   Clear
4:00 AM 55 °F 48 °F 70% 29.84 in 22 mi SW 10.4 mph - -   Partly Cloudy
4:20 AM 53.6 °F 48.2 °F 82% 29.83 in - SW 8.1 mph - N/A   Clear
4:50 AM 53.6 °F 50.0 °F 88% 29.80 in - WSW 9.2 mph - N/A   Clear
5:00 AM 54 °F 48 °F 74% 29.82 in 13 mi SW 9.2 mph - -   Scattered Clouds
5:20 AM 55.4 °F 50.0 °F 82% 29.80 in - SW 9.2 mph - N/A   Clear
5:50 AM 55.4 °F 50.0 °F 82% 29.80 in - WSW 6.9 mph - N/A   Clear
6:00 AM 54 °F 48 °F 74% 29.82 in 16 mi SW 8.1 mph - -   Mostly Cloudy
6:20 AM 55.4 °F 50.0 °F 82% 29.80 in - WSW 9.2 mph - N/A   Clear
6:50 AM 55.4 °F 50.0 °F 82% 29.80 in 6.2 mi WSW 10.4 mph - N/A   Unknown
7:00 AM 56 °F 49 °F 70% 29.81 in 17 mi West 10.4 mph - -  
7:20 AM 55.4 °F 50.0 °F 82% 29.80 in 6.2 mi West 10.4 mph - N/A   Scattered Clouds
7:50 AM 55.4 °F 51.8 °F 88% 29.83 in 6.2 mi West 11.5 mph - N/A   Mostly Cloudy
8:00 AM 56 °F 49 °F 72% 29.82 in 19 mi West 11.5 mph - - Rain Rain
8:20 AM 55.4 °F 51.8 °F 88% 29.83 in 6.2 mi West 10.4 mph - N/A   Mostly Cloudy
8:50 AM 57.2 °F 51.8 °F 82% 29.83 in 6.2 mi West 12.7 mph - N/A   Scattered Clouds
9:00 AM 57 °F 50 °F 70% 29.83 in 14 mi West 11.5 mph - -   Mostly Cloudy
9:20 AM 57.2 °F 51.8 °F 82% 29.83 in 6.2 mi West 10.4 mph - N/A   Partly Cloudy
9:50 AM 59.0 °F 51.8 °F 77% 29.83 in 6.2 mi West 11.5 mph - N/A   Scattered Clouds
10:00 AM 59 °F 50 °F 64% 29.84 in 16 mi West 9.2 mph - -   Scattered Clouds
10:20 AM 59.0 °F 51.8 °F 77% 29.83 in 6.2 mi West 10.4 mph - N/A   Partly Cloudy
10:50 AM 60.8 °F 51.8 °F 72% 29.86 in 6.2 mi West 11.5 mph - N/A   Scattered Clouds
11:00 AM 60 °F 49 °F 58% 29.85 in 19 mi West 11.5 mph - -   Partly Cloudy
11:20 AM 60.8 °F 50.0 °F 68% 29.86 in 6.2 mi West 12.7 mph - N/A   Scattered Clouds
11:50 AM 64.4 °F 50.0 °F 59% 29.86 in 6.2 mi West 12.7 mph - N/A   Scattered Clouds
12:00 PM 65 °F 47 °F 41% 29.85 in 22 mi West 12.7 mph - -  
12:20 PM 62.6 °F 48.2 °F 59% 29.86 in 6.2 mi West 12.7 mph - N/A   Scattered Clouds
12:50 PM 64.4 °F 44.6 °F 49% 29.86 in 6.2 mi WNW 9.2 mph - N/A   Scattered Clouds
1:00 PM 65 °F 45 °F 37% 29.86 in 17 mi NW 9.2 mph - -   Scattered Clouds
1:20 PM 66.2 °F 44.6 °F 46% 29.86 in 6.2 mi West 16.1 mph - N/A   Partly Cloudy
1:50 PM 66.2 °F 46.4 °F 49% 29.86 in 6.2 mi West 13.8 mph - N/A   Partly Cloudy
2:00 PM 67 °F 45 °F 34% 29.86 in 19 mi West 13.8 mph - -   Partly Cloudy
2:20 PM 68.0 °F 44.6 °F 43% 29.86 in 6.2 mi West 13.8 mph - N/A   Partly Cloudy
2:50 PM 66.2 °F 42.8 °F 43% 29.86 in - West 15.0 mph - N/A   Clear
3:00 PM 68 °F 43 °F 29% 29.86 in 19 mi West 15.0 mph - -   Mostly Cloudy
3:20 PM 68.0 °F 44.6 °F 43% 29.86 in - West 10.4 mph - N/A   Clear
3:50 PM 66.2 °F 42.8 °F 43% 29.86 in - WNW 9.2 mph - N/A   Clear
4:00 PM 68 °F 41 °F 25% 29.86 in 22 mi West 11.5 mph - -   Mostly Cloudy
4:20 PM 68.0 °F 44.6 °F 43% 29.86 in - WNW 11.5 mph - N/A   Clear
4:50 PM 68.0 °F 44.6 °F 43% 29.86 in - WNW 9.2 mph - N/A   Clear
5:00 PM 67 °F 43 °F 30% 29.87 in 19 mi WNW 10.4 mph - -   Scattered Clouds
5:20 PM 66.2 °F 44.6 °F 46% 29.86 in - WNW 11.5 mph - N/A   Clear
5:50 PM 66.2 °F 44.6 °F 46% 29.86 in 6.2 mi NW 6.9 mph - N/A   Partly Cloudy
6:00 PM 66 °F 44 °F 33% 29.87 in 22 mi WNW 9.2 mph - -   Partly Cloudy
6:20 PM 64.4 °F 46.4 °F 52% 29.86 in 6.2 mi WNW 10.4 mph - N/A   Partly Cloudy
6:50 PM 64.4 °F 44.6 °F 49% 29.89 in 6.2 mi West 11.5 mph - N/A   Partly Cloudy
7:00 PM 65 °F 43 °F 33% 29.88 in 18 mi WNW 10.4 mph - -   Scattered Clouds
7:20 PM 62.6 °F 44.6 °F 52% 29.89 in - WNW 6.9 mph - N/A   Clear
7:50 PM 62.6 °F 44.6 °F 52% 29.89 in 6.2 mi NW 6.9 mph - N/A   Partly Cloudy
8:00 PM 63 °F 44 °F 39% 29.89 in 17 mi NW 5.8 mph - -   Scattered Clouds
8:20 PM 62.6 °F 44.6 °F 52% 29.89 in 6.2 mi North 6.9 mph - N/A   Partly Cloudy
8:50 PM 57.2 °F 50.0 °F 77% 29.92 in 3.1 mi West 13.8 mph - N/A Rain Rain Showers
9:00 PM 58 °F 49 °F 62% 29.93 in 1 mi WNW 10.4 mph - - Rain Light Rain Showers
9:20 PM 57.2 °F 50.0 °F 77% 29.92 in 6.2 mi Variable 2.3 mph - N/A   Partly Cloudy
9:50 PM 57.2 °F 51.8 °F 82% 29.92 in 6.2 mi NW 3.5 mph - N/A   Partly Cloudy
10:00 PM 58 °F 49 °F 65% 29.93 in 18 mi NW 3.5 mph - - Rain Rain
10:20 PM 55.4 °F 51.8 °F 88% 29.95 in 6.2 mi WNW 6.9 mph - N/A   Partly Cloudy
10:50 PM 55.4 °F 51.8 °F 88% 29.95 in 6.2 mi WNW 4.6 mph - N/A   Partly Cloudy
11:00 PM 57 °F 50 °F 71% 29.94 in 17 mi West 4.6 mph - - Rain Rain
11:20 PM 55.4 °F 50.0 °F 82% 29.95 in - WNW 3.5 mph - N/A   Clear
11:50 PM 55.4 °F 50.0 °F 82% 29.95 in - WNW 2.3 mph - N/A   Clear