Weather History for Fort Belvoir, VA

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Tuesday, February 12, 2013

  Actual Average Record
Temperature  
Mean Temperature 46 °F -  
Max Temperature 57 °F 48 °F 77 °F (1999)
Min Temperature 34 °F 28 °F 16 °F (2014)
Degree Days  
Heating Degree Days 20    
Moisture  
Dew Point 32 °F    
Average Humidity 69    
Maximum Humidity 100    
Minimum Humidity 31    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.91 in    
Wind  
Wind Speed 4 mph (WNW)    
Max Wind Speed 10 mph    
Max Gust Speed -    
Visibility 7 miles    
Events Fog    
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

Feb. 12, 2013 Rise Set
Actual Time 7:03 AM EST 5:43 PM EST
Civil Twilight 6:35 AM EST 6:10 PM EST
Nautical Twilight 6:04 AM EST 6:42 PM EST
Astronomical Twilight 5:33 AM EST 7:12 PM EST
Moon 8:01 AM EST (2/12) 8:39 PM EST (2/12)
Length of Visible Light 11h 35m
Length of Day
10h 40m
Waxing Crescent, 7% of the Moon is Illuminated
Feb 12
Waxing Crescent
Feb 17
First Quarter
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:01 AM 39.2 °F - 39.2 °F 100% 29.83 in 0.5 mi Calm Calm - N/A Fog Fog
12:02 AM 39.2 °F - 37.4 °F 93% 29.83 in 0.5 mi Calm Calm - N/A Fog Fog
12:14 AM 39.2 °F 35.0 °F 37.4 °F 93% 29.83 in 0.8 mi WNW 5.8 mph - N/A   Clear
12:15 AM 39.2 °F 35.0 °F 39.2 °F 100% 29.83 in 0.8 mi WNW 5.8 mph - N/A   Clear
12:16 AM 39.2 °F 35.0 °F 39.2 °F 100% 29.83 in 0.8 mi WNW 5.8 mph - N/A   Clear
12:17 AM 39.2 °F 35.0 °F 39.2 °F 100% 29.83 in 1.0 mi WNW 5.8 mph - N/A   Clear
12:18 AM 39.2 °F 35.0 °F 39.2 °F 100% 29.83 in 1.2 mi WNW 5.8 mph - N/A   Clear
12:19 AM 39.2 °F 35.0 °F 39.2 °F 100% 29.83 in 1.5 mi NW 5.8 mph - N/A   Clear
12:20 AM 41.0 °F 36.4 °F 39.2 °F 93% 29.83 in 2.0 mi WNW 6.9 mph - N/A   Clear
12:21 AM 41.0 °F 36.4 °F 39.2 °F 93% 29.83 in 2.5 mi WNW 6.9 mph - N/A   Clear
12:22 AM 41.0 °F 36.4 °F 39.2 °F 93% 29.83 in 4.0 mi WNW 6.9 mph - N/A   Clear
12:55 AM 43.0 °F 38.2 °F 32.7 °F 67% 29.84 in 10.0 mi NW 8.1 mph - N/A   Clear
1:55 AM 43.9 °F 39.9 °F 32.2 °F 63% 29.88 in 10.0 mi WNW 6.9 mph - N/A   Clear
2:55 AM 43.7 °F 39.7 °F 29.5 °F 57% 29.88 in 10.0 mi West 6.9 mph - N/A   Clear
3:55 AM 35.6 °F - 31.5 °F 85% 29.89 in 10.0 mi Calm Calm - N/A   Clear
4:55 AM 38.5 °F - 29.7 °F 71% 29.90 in 10.0 mi Calm Calm - N/A   Clear
5:55 AM 34.2 °F - 29.5 °F 83% 29.91 in 10.0 mi Calm Calm - N/A   Clear
6:55 AM 34.3 °F - 29.7 °F 83% 29.94 in 10.0 mi Calm Calm - N/A   Clear
7:55 AM 36.1 °F - 30.7 °F 81% 29.97 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:55 AM 38.5 °F - 32.5 °F 79% 29.99 in 10.0 mi Calm Calm - N/A   Partly Cloudy
9:55 AM 50.0 °F - 26.6 °F 40% 30.01 in 10.0 mi NW 10.4 mph - N/A   Clear
10:55 AM 52.7 °F - 25.9 °F 35% 30.01 in 10.0 mi NW 8.1 mph - N/A   Clear
11:55 AM 54.5 °F - 26.4 °F 34% 30.01 in 10.0 mi NW 8.1 mph - N/A   Clear
12:55 PM 55.8 °F - 26.2 °F 32% 29.99 in 10.0 mi WNW 6.9 mph - N/A   Clear
1:55 PM 57.2 °F - 27.0 °F 31% 29.94 in 10.0 mi NW 3.5 mph - N/A   Clear
2:55 PM 57.9 °F - 27.3 °F 31% 29.88 in 10.0 mi Variable 4.6 mph - N/A   Clear
3:55 PM 57.0 °F - 27.7 °F 33% 29.94 in 10.0 mi SE 4.6 mph - N/A   Clear
4:55 PM 55.6 °F - 28.4 °F 35% 29.93 in 10.0 mi SE 4.6 mph - N/A   Clear
5:55 PM 51.8 °F - 28.0 °F 40% 29.96 in 10.0 mi SSE 4.6 mph - N/A   Clear
6:55 PM 45.9 °F - 31.6 °F 58% 29.97 in 10.0 mi Calm Calm - N/A   Clear
7:55 PM 43.9 °F - 31.8 °F 63% 29.95 in 10.0 mi Calm Calm - N/A   Clear
8:55 PM 41.7 °F - 31.1 °F 66% 29.94 in 10.0 mi Calm Calm - N/A   Clear
9:55 PM 38.7 °F - 30.0 °F 71% 29.96 in 10.0 mi Calm Calm - N/A   Clear
10:55 PM 44.1 °F - 29.8 °F 57% 29.96 in 10.0 mi Calm Calm - N/A   Clear
11:55 PM 42.4 °F - 29.7 °F 61% 29.96 in 10.0 mi Calm Calm - N/A   Clear