Weather History for Fort Belvoir, VA

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Friday, January 18, 2013

  Actual Average Record
Temperature  
Mean Temperature 32 °F -  
Max Temperature 38 °F 41 °F 60 °F (1999)
Min Temperature 25 °F 24 °F 5 °F (1997)
Degree Days  
Heating Degree Days 34    
Moisture  
Dew Point 20 °F    
Average Humidity 57    
Maximum Humidity 83    
Minimum Humidity 37    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.41 in    
Wind  
Wind Speed 7 mph (NW)    
Max Wind Speed 18 mph    
Max Gust Speed 24 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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Date:

Astronomy

Jan. 18, 2013 Rise Set
Actual Time 7:23 AM EST 5:14 PM EST
Civil Twilight 6:55 AM EST 5:43 PM EST
Nautical Twilight 6:22 AM EST 6:16 PM EST
Astronomical Twilight 5:50 AM EST 6:48 PM EST
Moon 11:06 AM EST (1/18) No Moon Set
Length of Visible Light 10h 48m
Length of Day
9h 50m
Waxing Crescent, 47% of the Moon is Illuminated
Jan 18
Waxing Crescent
Jan 18
First Quarter
Jan 26
Full
Feb 3
Last Quarter
Feb 10
New

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:55 AM 38.8 °F 35.4 °F 30.4 °F 72% 30.12 in 10.0 mi Variable 4.6 mph - N/A   Clear
1:55 AM 38.5 °F 33.4 °F 29.3 °F 70% 30.16 in 10.0 mi WNW 6.9 mph - N/A   Clear
2:55 AM 36.5 °F 30.3 °F 28.4 °F 72% 30.17 in 10.0 mi WNW 8.1 mph - N/A   Clear
3:55 AM 37.6 °F 28.4 °F 26.1 °F 63% 30.18 in 10.0 mi WNW 16.1 mph - N/A   Clear
4:55 AM 37.2 °F 30.6 °F 25.0 °F 61% 30.23 in 10.0 mi WNW 9.2 mph - N/A   Clear
5:55 AM 37.2 °F 28.7 °F 22.1 °F 54% 30.25 in 10.0 mi NW 13.8 mph 21.9 mph N/A   Clear
6:55 AM 37.0 °F 30.4 °F 19.9 °F 50% 30.30 in 10.0 mi WNW 9.2 mph - N/A   Scattered Clouds
7:55 AM 35.2 °F 26.2 °F 16.3 °F 46% 30.38 in 10.0 mi NW 13.8 mph 23.0 mph N/A   Clear
8:55 AM 35.6 °F 28.6 °F 22.3 °F 58% 30.44 in 10.0 mi NNW 9.2 mph 18.4 mph N/A   Scattered Clouds
9:55 AM 35.8 °F 26.1 °F 19.0 °F 51% 30.48 in 10.0 mi NW 16.1 mph 24.2 mph N/A   Scattered Clouds
10:55 AM 36.3 °F 30.1 °F 17.8 °F 47% 30.49 in 10.0 mi NW 8.1 mph - N/A   Clear
11:55 AM 36.5 °F 26.3 °F 13.1 °F 38% 30.49 in 10.0 mi NW 18.4 mph - N/A   Clear
12:55 PM 37.0 °F 31.6 °F 14.5 °F 40% 30.48 in 10.0 mi North 6.9 mph - N/A   Clear
1:55 PM 37.2 °F 32.6 °F 12.9 °F 37% 30.50 in 10.0 mi North 5.8 mph - N/A   Clear
2:55 PM 38.1 °F 33.7 °F 13.8 °F 37% 30.50 in 10.0 mi Variable 5.8 mph - N/A   Clear
3:55 PM 38.3 °F 34.8 °F 14.4 °F 38% 30.51 in 10.0 mi North 4.6 mph - N/A   Clear
4:55 PM 37.2 °F - 13.8 °F 38% 30.52 in 10.0 mi Calm Calm - N/A   Clear
5:55 PM 30.4 °F - 18.1 °F 60% 30.52 in 10.0 mi Calm Calm - N/A   Clear
6:55 PM 28.0 °F - 20.8 °F 74% 30.52 in 10.0 mi Calm Calm - N/A   Clear
7:55 PM 27.0 °F - 21.0 °F 78% 30.52 in 10.0 mi Calm Calm - N/A   Clear
8:55 PM 27.1 °F - 20.5 °F 76% 30.52 in 10.0 mi Calm Calm - N/A   Clear
9:55 PM 25.5 °F 21.3 °F 21.0 °F 83% 30.52 in 10.0 mi SSE 3.5 mph - N/A   Clear
10:55 PM 31.8 °F 28.5 °F 19.4 °F 60% 30.49 in 10.0 mi South 3.5 mph - N/A   Clear
11:55 PM 31.6 °F 27.0 °F 21.2 °F 65% 30.47 in 10.0 mi Variable 4.6 mph - N/A   Clear