History for Fort Belvoir, VA

Tuesday, August 21, 2012 — View Current Conditions
Tuesday, August 21, 2012
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Daily Weekly Monthly Custom
  Actual Average Record
Temperature
Mean Temperature 73 °F -  
Max Temperature 84 °F 86 °F 93 °F (1998)
Min Temperature 62 °F 65 °F 57 °F (2008)
Cooling Degree Days 8    
Growing Degree Days 23 (Base 50)    
Moisture
Dew Point 63 °F    
Average Humidity 89    
Maximum Humidity 100    
Minimum Humidity 39    
Precipitation
Precipitation 0.00 in - - ()
Sea Level Pressure
Sea Level Pressure 30.02 in    
Wind
Wind Speed 1 mph (WNW)    
Max Wind Speed 7 mph    
Max Gust Speed -    
Visibility 7 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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Local Photos
Morning Gleam
"With the first gleam of morning rays, the garden is a prism of a thousand hues refracted in tiny does of crystal dew, a dazzling quilt of millefleur...
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Astronomy
May. 23, 2013 Rise Set
Actual Time 6:28 AM EDT 7:54 PM EDT
Civil Twilight 6:00 AM EDT 8:22 PM EDT
Nautical Twilight 5:26 AM EDT 8:55 PM EDT
Astronomical Twilight 4:51 AM EDT 9:30 PM EDT
Moon 10:52 AM EDT (8/21) 9:57 PM EDT (8/21)
Length Of Visible Light 14h 21m
Length of Day
13h 25m
Waxing Crescent, 19% of the Moon is Illuminated
Aug 21
Waxing Crescent
Aug 24
First Quarter
Aug 31
Full
Sep 8
Last Quarter
Sep 15
New
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Hourly Observations
Time (EDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:01 AM 64.4 °F - 64.4 °F 100% 29.99 in 6.0 mi Calm Calm - N/A   Partly Cloudy
12:37 AM 64.4 °F - 64.4 °F 100% 29.99 in 6.0 mi Calm Calm - N/A   Mostly Cloudy
12:55 AM 64.4 °F - 64.0 °F 99% 29.99 in 6.0 mi Calm Calm - N/A   Mostly Cloudy
1:04 AM 64.4 °F - 64.4 °F 100% 30.00 in 5.0 mi Calm Calm - N/A   Mostly Cloudy
1:08 AM 64.4 °F - 64.4 °F 100% 29.99 in 5.0 mi Calm Calm - N/A   Scattered Clouds
1:29 AM 64.4 °F - 64.4 °F 100% 29.99 in 6.0 mi Calm Calm - N/A   Clear
1:30 AM 64.4 °F - 64.4 °F 100% 29.99 in 6.0 mi Calm Calm - N/A   Clear
1:41 AM 64.4 °F - 64.4 °F 100% 29.99 in 4.0 mi Calm Calm - N/A   Clear
1:46 AM 64.4 °F - 64.4 °F 100% 29.99 in 6.0 mi Calm Calm - N/A   Clear
1:55 AM 64.2 °F - 64.2 °F 100% 29.99 in 7.0 mi Calm Calm - N/A   Clear
1:59 AM 64.4 °F - 64.4 °F 100% 29.99 in 3.0 mi Calm Calm - N/A   Clear
2:10 AM 64.4 °F - 64.4 °F 100% 29.99 in 7.0 mi Calm Calm - N/A   Clear
2:25 AM 64.4 °F - 64.4 °F 100% 29.99 in 8.0 mi Calm Calm - N/A   Clear
2:27 AM 64.4 °F - 64.4 °F 100% 29.99 in 8.0 mi Calm Calm - N/A   Clear
2:40 AM 64.4 °F - 64.4 °F 100% 30.00 in 9.0 mi WNW 4.6 mph - N/A   Partly Cloudy
2:49 AM 66.2 °F - 66.2 °F 100% 30.00 in 8.0 mi West 3.5 mph - N/A   Mostly Cloudy
2:55 AM 65.7 °F - 65.7 °F 100% 30.00 in 7.0 mi WNW 3.5 mph - N/A   Mostly Cloudy
3:38 AM 66.2 °F - 66.2 °F 100% 30.00 in 6.0 mi West 3.5 mph - N/A   Mostly Cloudy
3:49 AM 66.2 °F - 66.2 °F 100% 30.00 in 7.0 mi West 3.5 mph - N/A   Mostly Cloudy
3:55 AM 65.8 °F - 65.8 °F 100% 30.00 in 7.0 mi WNW 4.6 mph - N/A   Mostly Cloudy
4:12 AM 66.2 °F - 66.2 °F 100% 30.00 in 8.0 mi NW 3.5 mph - N/A   Mostly Cloudy
4:38 AM 66.2 °F - 66.2 °F 100% 30.01 in 8.0 mi Calm Calm - N/A   Mostly Cloudy
4:52 AM 66.2 °F - 66.2 °F 100% 30.01 in 7.0 mi NW 4.6 mph - N/A   Mostly Cloudy
4:55 AM 65.5 °F - 65.5 °F 100% 30.01 in 7.0 mi WNW 3.5 mph - N/A   Mostly Cloudy
5:05 AM 66.2 °F - 64.4 °F 94% 30.01 in 8.0 mi NW 3.5 mph - N/A   Scattered Clouds
5:06 AM 66.2 °F - 64.4 °F 94% 30.01 in 8.0 mi NW 3.5 mph - N/A   Mostly Cloudy
5:08 AM 66.2 °F - 64.4 °F 94% 30.01 in 8.0 mi Calm Calm - N/A   Scattered Clouds
5:09 AM 64.4 °F - 64.4 °F 100% 30.01 in 8.0 mi Calm Calm - N/A   Mostly Cloudy
5:21 AM 64.4 °F - 64.4 °F 100% 30.01 in 8.0 mi Calm Calm - N/A   Mostly Cloudy
5:28 AM 64.4 °F - 64.4 °F 100% 30.01 in 8.0 mi NNW 3.5 mph - N/A   Scattered Clouds
5:40 AM 64.4 °F - 64.4 °F 100% 30.01 in 2.5 mi Calm Calm - N/A   Scattered Clouds
5:47 AM 64.4 °F - 64.4 °F 100% 30.01 in 3.0 mi Calm Calm - N/A   Partly Cloudy
5:50 AM 64.4 °F - 64.4 °F 100% 30.01 in 5.0 mi Calm Calm - N/A   Clear
5:55 AM 63.9 °F - 63.7 °F 99% 30.01 in 3.0 mi Calm Calm - N/A   Clear
5:59 AM 64.4 °F - 62.6 °F 94% 30.01 in 2.5 mi Calm Calm - N/A   Clear
6:02 AM 64.4 °F - 62.6 °F 94% 30.01 in 2.5 mi Calm Calm - N/A   Clear
6:05 AM 64.4 °F - 62.6 °F 94% 30.02 in 3.0 mi Calm Calm - N/A   Clear
6:07 AM 64.4 °F - 62.6 °F 94% 30.02 in 2.5 mi Calm Calm - N/A   Clear
6:09 AM 62.6 °F - 62.6 °F 100% 30.02 in 2.0 mi Calm Calm - N/A   Clear
6:18 AM 62.6 °F - 62.6 °F 100% 30.01 in 1.8 mi Calm Calm - N/A   Clear
6:20 AM 62.6 °F - 62.6 °F 100% 30.01 in 1.5 mi Calm Calm - N/A   Clear
6:21 AM 62.6 °F - 62.6 °F 100% 30.00 in 3.0 mi Calm Calm - N/A   Partly Cloudy
6:57 AM 62.6 °F - 62.6 °F 100% 30.04 in 2.0 mi Calm Calm - N/A   Mostly Cloudy
7:22 AM 62.6 °F - 62.6 °F 100% 30.02 in 10.0 mi Calm Calm - N/A   Partly Cloudy
7:56 AM 64.4 °F - 64.4 °F 100% 30.04 in 8.0 mi Calm Calm - N/A   Partly Cloudy
8:55 AM 68.5 °F - 64.4 °F 87% 30.06 in 10.0 mi Calm Calm - N/A   Clear
9:55 AM 70.9 °F - 63.3 °F 77% 30.06 in 10.0 mi NW 4.6 mph - N/A   Partly Cloudy
10:55 AM 75.6 °F - 63.1 °F 65% 30.07 in 10.0 mi Calm Calm - N/A   Clear
11:55 AM 78.1 °F - 62.4 °F 58% 30.08 in 10.0 mi Calm Calm - N/A   Clear
12:55 PM 79.0 °F - 62.4 °F 57% 30.07 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:55 PM 80.4 °F 81.6 °F 62.6 °F 54% 30.07 in 10.0 mi Variable 3.5 mph - N/A   Partly Cloudy
2:55 PM 81.7 °F 81.9 °F 59.0 °F 46% 30.05 in 10.0 mi Calm Calm - N/A   Clear
3:55 PM 82.0 °F 81.8 °F 57.6 °F 43% 30.04 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:55 PM 84.2 °F 83.3 °F 57.0 °F 39% 30.03 in 10.0 mi Calm Calm - N/A   Clear
5:55 PM 79.3 °F - 60.1 °F 52% 30.04 in 10.0 mi Calm Calm - N/A   Clear
6:55 PM 80.4 °F 81.5 °F 61.9 °F 53% 30.04 in 10.0 mi SSE 5.8 mph - N/A   Scattered Clouds
7:55 PM 76.3 °F - 61.0 °F 59% 30.06 in 10.0 mi Variable 6.9 mph - N/A   Mostly Cloudy
8:55 PM 73.6 °F - 59.5 °F 61% 30.09 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:55 PM 69.1 °F - 60.8 °F 75% 30.11 in 10.0 mi Calm Calm - N/A   Clear
10:55 PM 66.4 °F - 61.3 °F 84% 30.11 in 10.0 mi Calm Calm - N/A   Clear
11:55 PM 64.9 °F - 61.3 °F 88% 30.12 in 10.0 mi Calm Calm - N/A   Clear
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