Weather History for Fort Belvoir, VA

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Tuesday, December 4, 2012

  Actual Average Record
Temperature  
Mean Temperature 60 °F -  
Max Temperature 72 °F 51 °F 77 °F (1998)
Min Temperature 47 °F 32 °F 14 °F (2002)
Degree Days  
Heating Degree Days 6    
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 50 °F    
Average Humidity 72    
Maximum Humidity 99    
Minimum Humidity 42    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.17 in    
Wind  
Wind Speed 2 mph (SSE)    
Max Wind Speed 8 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

Dec. 04, 2012 Rise Set
Actual Time 7:11 AM EST 4:47 PM EST
Civil Twilight 6:41 AM EST 5:16 PM EST
Nautical Twilight 6:08 AM EST 5:49 PM EST
Astronomical Twilight 5:36 AM EST 6:21 PM EST
Moon 10:29 PM EST (12/4) 11:06 AM EST (12/4)
Length of Visible Light 10h 35m
Length of Day
9h 35m
Waning Gibbous, 69% of the Moon is Illuminated
Dec 4
Waning Gibbous
Dec 6
Last Quarter
Dec 13
New
Dec 20
First Quarter
Dec 28
Full

Hourly Weather History & Observations

Time (EST) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:55 AM 47.1 °F 46.9 °F 99% 30.25 in 8.0 mi Calm Calm - N/A   Scattered Clouds
1:55 AM 48.2 °F 47.8 °F 99% 30.25 in 10.0 mi Calm Calm - N/A   Overcast
2:55 AM 49.3 °F 48.9 °F 99% 30.25 in 10.0 mi Calm Calm - N/A   Overcast
3:55 AM 49.5 °F 48.6 °F 97% 30.23 in 10.0 mi Calm Calm - N/A   Overcast
4:55 AM 49.8 °F 48.9 °F 97% 30.23 in 10.0 mi Calm Calm - N/A   Overcast
5:55 AM 49.5 °F 48.6 °F 97% 30.23 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:55 AM 49.1 °F 48.7 °F 99% 30.24 in 10.0 mi Calm Calm - N/A   Overcast
7:55 AM 50.7 °F 50.4 °F 99% 30.25 in 10.0 mi Calm Calm - N/A   Overcast
8:55 AM 54.1 °F 52.5 °F 94% 30.26 in 10.0 mi Calm Calm - N/A   Overcast
9:55 AM 59.4 °F 53.4 °F 81% 30.26 in 10.0 mi Calm Calm - N/A   Partly Cloudy
10:55 AM 62.6 °F 53.2 °F 71% 30.24 in 10.0 mi SSE 4.6 mph - N/A   Partly Cloudy
11:55 AM 66.0 °F 52.0 °F 60% 30.21 in 10.0 mi Variable 3.5 mph - N/A   Clear
12:55 PM 69.6 °F 52.0 °F 53% 30.17 in 10.0 mi Variable 4.6 mph - N/A   Clear
1:55 PM 71.2 °F 50.4 °F 48% 30.13 in 10.0 mi South 8.1 mph - N/A   Clear
2:55 PM 72.5 °F 48.4 °F 42% 30.12 in 10.0 mi Variable 6.9 mph - N/A   Clear
3:55 PM 70.2 °F 49.6 °F 48% 30.12 in 10.0 mi South 6.9 mph - N/A   Clear
4:55 PM 66.9 °F 49.3 °F 53% 30.11 in 10.0 mi SSE 4.6 mph - N/A   Clear
5:55 PM 63.3 °F 49.3 °F 60% 30.11 in 10.0 mi Calm Calm - N/A   Clear
6:55 PM 64.0 °F 48.7 °F 57% 30.10 in 10.0 mi Variable 3.5 mph - N/A   Clear
7:55 PM 64.0 °F 48.6 °F 57% 30.10 in 10.0 mi Variable 3.5 mph - N/A   Overcast
8:55 PM 64.4 °F 48.6 °F 56% 30.09 in 10.0 mi Variable 3.5 mph - N/A   Overcast
9:55 PM 63.9 °F 48.6 °F 57% 30.07 in 10.0 mi Variable 3.5 mph - N/A   Overcast
10:55 PM 62.8 °F 47.7 °F 58% 30.06 in 10.0 mi Variable 3.5 mph - N/A   Scattered Clouds
11:55 PM 62.6 °F 47.3 °F 57% 30.04 in 10.0 mi Variable 4.6 mph - N/A   Mostly Cloudy