Weather History for Langley AFB, VA

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Tuesday, September 11, 2012

  Actual Average Record
Temperature  
Mean Temperature 64 °F -  
Max Temperature 73 °F 78 °F 99 °F (1983)
Min Temperature 57 °F 62 °F 50 °F (1976)
Growing Degree Days 14 (Base 50)    
Moisture  
Dew Point 45 °F    
Average Humidity 53    
Maximum Humidity 82    
Minimum Humidity 26    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.27 in    
Wind  
Wind Speed 6 mph (North)    
Max Wind Speed 12 mph    
Max Gust Speed -    
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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Date:

Astronomy

Sep. 11, 2012 Rise Set
Actual Time 6:44 AM EDT 7:18 PM EDT
Civil Twilight 6:18 AM EDT 7:44 PM EDT
Nautical Twilight 5:47 AM EDT 8:15 PM EDT
Astronomical Twilight 5:16 AM EDT 8:46 PM EDT
Moon 2:05 AM EDT (9/11) 4:22 PM EDT (9/11)
Length of Visible Light 13h 26m
Length of Day
12h 33m
Waning Crescent, 21% of the Moon is Illuminated
Sep 11
Waning Crescent
Sep 15
New
Sep 22
First Quarter
Sep 29
Full
Oct 8
Last Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:55 AM 60.4 °F 49.1 °F 66% 30.17 in 10.0 mi NW 5.8 mph - N/A   Clear
1:55 AM 59.7 °F 49.3 °F 68% 30.18 in 10.0 mi NW 4.6 mph - N/A   Clear
2:55 AM 59.7 °F 49.3 °F 68% 30.18 in 10.0 mi NW 3.5 mph - N/A   Clear
3:55 AM 58.1 °F 51.3 °F 78% 30.19 in 10.0 mi West 3.5 mph - N/A   Clear
4:55 AM 57.2 °F 51.8 °F 82% 30.20 in 10.0 mi NW 3.5 mph - N/A   Scattered Clouds
5:55 AM 58.8 °F 50.7 °F 74% 30.22 in 10.0 mi NW 3.5 mph - N/A   Clear
6:55 AM 58.3 °F 50.9 °F 76% 30.25 in 10.0 mi NW 5.8 mph - N/A   Clear
7:55 AM 62.8 °F 54.1 °F 73% 30.27 in 10.0 mi NNW 4.6 mph - N/A   Clear
8:55 AM 67.8 °F 47.7 °F 48% 30.29 in 10.0 mi NE 10.4 mph - N/A   Clear
9:55 AM 70.2 °F 41.2 °F 35% 30.31 in 10.0 mi NE 11.5 mph - N/A   Clear
10:55 AM 71.6 °F 37.4 °F 29% 30.31 in 10.0 mi ENE 11.5 mph - N/A   Clear
11:55 AM 71.8 °F 37.9 °F 29% 30.32 in 10.0 mi ENE 11.5 mph - N/A   Clear
12:55 PM 72.5 °F 36.0 °F 26% 30.31 in 10.0 mi NNE 8.1 mph - N/A   Clear
1:55 PM 72.5 °F 35.4 °F 26% 30.30 in 10.0 mi Variable 6.9 mph - N/A   Clear
2:55 PM 72.7 °F 37.4 °F 28% 30.29 in 7.0 mi NE 11.5 mph - N/A   Clear
3:55 PM 72.9 °F 37.0 °F 27% 30.28 in 10.0 mi NE 11.5 mph - N/A   Clear
4:55 PM 72.1 °F 36.3 °F 27% 30.28 in 10.0 mi ENE 9.2 mph - N/A   Clear
5:55 PM 71.1 °F 38.3 °F 30% 30.28 in 10.0 mi ENE 8.1 mph - N/A   Clear
6:55 PM 68.4 °F 42.1 °F 38% 30.28 in 10.0 mi NE 3.5 mph - N/A   Clear
7:55 PM 63.0 °F 49.5 °F 61% 30.28 in 10.0 mi Calm Calm - N/A   Clear
8:55 PM 61.2 °F 49.1 °F 65% 30.30 in 10.0 mi Calm Calm - N/A   Clear
9:55 PM 59.7 °F 49.5 °F 69% 30.31 in 10.0 mi Calm Calm - N/A   Clear
10:55 PM 58.5 °F 50.0 °F 73% 30.32 in 10.0 mi Calm Calm - N/A   Clear
11:55 PM 58.6 °F 51.4 °F 77% 30.32 in 10.0 mi Calm Calm - N/A   Clear