Weather History for London / Heathrow Airport, United Kingdom

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Week of March 17, 2013 through March 23, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 47 °F 42 °F 34 °F
Mean Temperature 42 °F 39 °F 34 °F
Min Temperature 36 °F 34 °F 31 °F
Degree Days  
Heating Degree Days (base 65) 30 26 23 181
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 40 °F 34 °F 29 °F
Precipitation  
Precipitation 0.24 in 0.06 in 0.00 in 0.47 in
Snowdepth - - - -
Wind  
Wind 20 mph 9 mph 1 mph
Gust Wind - - -
Sea Level Pressure  
Sea Level Pressure 30.04 in 29.66 in 29.18 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Mar. 20, 2013 Rise Set
Actual Time 6:04 AM GMT 6:15 PM GMT
Civil Twilight 5:31 AM GMT 6:48 PM GMT
Nautical Twilight 4:51 AM GMT 7:27 PM GMT
Astronomical Twilight 4:10 AM GMT 8:08 PM GMT
Moon 10:59 AM GMT (3/20) 2:11 AM GMT (3/20)
Length of Visible Light 13h 17m
Length of Day
12h 10m
First Quarter, 57% of the Moon is Illuminated
Mar 20
First Quarter
Mar 27
Full
Apr 3
Last Quarter
Apr 10
New
Apr 18
First Quarter

Daily Weather History & Observations

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Mar high avg low high avg low high avg low high avg low high avg low high avg high sum  
17 45 41 33 40 37 32 94 88 83 29.32 29.24 29.18 12.0 7.3 3.0 12 6 - 0.24 Rain
18 46 38 31 39 36 30 96 90 81 29.37 29.28 29.23 9.0 5.0 3.0 6 3 - 0.04 Rain
19 47 42 36 38 36 34 91 79 60 29.53 29.48 29.40 14.0 6.4 3.0 9 5 - 0.00  
20 44 40 36 38 35 33 92 79 60 30.01 29.78 29.54 6.0 3.9 2.0 8 7 - 0.01  
21 44 38 32 35 32 29 88 71 52 30.04 29.99 29.93 12.0 7.5 3.0 20 10 - 0.04 Rain
22 42 39 36 35 34 32 91 76 66 29.88 29.80 29.76 4.0 3.4 2.0 20 15 - 0.02 Rain
23 35 34 34 35 33 32 93 89 85 29.88 29.83 29.76 4.0 3.0 2.0 15 13 - 0.12 Rain , Snow
24 34 - 34 30 30 30 80 80 80 29.88 29.88 29.88 5.0 5.0 5.0 13 13 - 0.00