Weather History for Langley AFB, VA

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Wednesday, May 13, 2009

  Actual Average Record
Temperature  
Mean Temperature 59 °F -  
Max Temperature 69 °F 74 °F 94 °F (1956)
Min Temperature 50 °F 58 °F 39 °F (1963)
Degree Days  
Heating Degree Days 6    
Growing Degree Days 9 (Base 50)    
Moisture  
Dew Point 51 °F    
Average Humidity 71    
Maximum Humidity 98    
Minimum Humidity 44    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.35 in    
Wind  
Wind Speed 4 mph (ESE)    
Max Wind Speed 17 mph    
Max Gust Speed 20 mph    
Visibility 10 miles    
Events      
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 13, 2009 Rise Set
Actual Time 5:58 AM EDT 8:05 PM EDT
Civil Twilight 5:29 AM EDT 8:34 PM EDT
Nautical Twilight 4:54 AM EDT 9:09 PM EDT
Astronomical Twilight 4:16 AM EDT 9:48 PM EDT
Moon No Moon Rise 9:10 AM EDT (5/13)
Length of Visible Light 15h 04m
Length of Day
14h 06m
Waning Gibbous, 82% of the Moon is Illuminated
May 13
Waning Gibbous
May 17
Last Quarter
May 24
New
May 30
First Quarter
Jun 7
Full

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:55 AM 53.8 °F 50.7 °F 89% 30.30 in 10.0 mi Calm Calm - N/A   Clear
1:55 AM 54.9 °F 51.8 °F 89% 30.31 in 10.0 mi Calm Calm - N/A   Clear
2:55 AM 53.2 °F 51.4 °F 94% 30.31 in 10.0 mi Calm Calm - N/A   Clear
3:55 AM 51.8 °F 51.1 °F 97% 30.31 in 10.0 mi Calm Calm - N/A   Clear
4:55 AM 50.7 °F 49.8 °F 97% 30.31 in 10.0 mi Calm Calm - N/A   Clear
5:55 AM 50.2 °F 49.6 °F 98% 30.33 in 10.0 mi Calm Calm - N/A   Clear
6:55 AM 51.3 °F 50.7 °F 98% 30.36 in 10.0 mi Calm Calm - N/A   Clear
7:55 AM 59.0 °F 57.2 °F 94% 30.36 in 10.0 mi Calm Calm - N/A   Partly Cloudy
8:55 AM 64.6 °F 52.9 °F 66% 30.37 in 10.0 mi ENE 6.9 mph - N/A   Scattered Clouds
9:55 AM 66.4 °F 54.0 °F 64% 30.39 in 10.0 mi NE 9.2 mph - N/A   Mostly Cloudy
10:55 AM 67.1 °F 52.2 °F 59% 30.41 in 10.0 mi SE 4.6 mph - N/A   Mostly Cloudy
11:55 AM 68.2 °F 50.0 °F 52% 30.41 in 10.0 mi ENE 8.1 mph - N/A   Mostly Cloudy
12:55 PM 68.9 °F 45.9 °F 44% 30.38 in 10.0 mi East 10.4 mph - N/A   Mostly Cloudy
1:55 PM 68.2 °F 51.8 °F 56% 30.38 in 10.0 mi ESE 13.8 mph 19.6 mph N/A   Clear
2:55 PM 67.5 °F 49.3 °F 52% 30.37 in 10.0 mi ESE 17.3 mph - N/A   Scattered Clouds
3:55 PM 67.1 °F 47.8 °F 50% 30.38 in 10.0 mi ESE 16.1 mph - N/A   Partly Cloudy
4:55 PM 66.2 °F 48.4 °F 53% 30.37 in 10.0 mi East 15.0 mph - N/A   Clear
5:55 PM 65.8 °F 45.7 °F 48% 30.36 in 10.0 mi ESE 15.0 mph - N/A   Clear
6:55 PM 64.4 °F 46.8 °F 53% 30.35 in 10.0 mi ESE 11.5 mph - N/A   Clear
7:55 PM 62.8 °F 52.2 °F 68% 30.35 in 10.0 mi ESE 11.5 mph - N/A   Clear
8:55 PM 62.2 °F 51.3 °F 67% 30.35 in 10.0 mi SE 8.1 mph - N/A   Clear
9:55 PM 62.1 °F 51.1 °F 67% 30.35 in 10.0 mi SE 8.1 mph - N/A   Clear
10:55 PM 62.2 °F 53.2 °F 72% 30.36 in 10.0 mi SE 5.8 mph - N/A   Clear
11:55 PM 61.3 °F 54.9 °F 79% 30.35 in 10.0 mi South 3.5 mph - N/A   Clear