Weather History for Fort Belvoir, VA

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Sunday, August 25, 2013

  Actual Average Record
Temperature  
Mean Temperature 70 °F -  
Max Temperature 80 °F 85 °F 102 °F (1998)
Min Temperature 59 °F 65 °F 55 °F (2005)
Cooling Degree Days 5    
Growing Degree Days 20 (Base 50)    
Moisture  
Dew Point 60 °F    
Average Humidity 86    
Maximum Humidity 100    
Minimum Humidity 41    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.36 in    
Wind  
Wind Speed 1 mph (SSE)    
Max Wind Speed 8 mph    
Max Gust Speed -    
Visibility 9 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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Astronomy

Aug. 25, 2013 Rise Set
Actual Time 6:31 AM EDT 7:48 PM EDT
Civil Twilight 6:04 AM EDT 8:16 PM EDT
Nautical Twilight 5:31 AM EDT 8:49 PM EDT
Astronomical Twilight 4:56 AM EDT 9:24 PM EDT
Moon 10:22 PM EDT 11:27 AM EDT
Length of Visible Light 14h 12m
Length of Day
13h 17m
Waning Gibbous, 76% of the Moon is Illuminated
Aug 25
Waning Gibbous
Aug 28
Last Quarter
Sep 5
New
Sep 12
First Quarter
Sep 19
Full

Hourly Weather History & Observations

Time (EDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:58 AM 61.7 °F - 61.3 °F 99% 30.35 in 10.0 mi Calm Calm - N/A   Clear
1:28 AM 60.8 °F - 60.8 °F 100% 30.34 in 9.0 mi Calm Calm - N/A   Clear
1:38 AM 60.8 °F - 60.8 °F 100% 30.35 in 10.0 mi Calm Calm - N/A   Clear
1:58 AM 61.0 °F - 61.0 °F 100% 30.35 in 10.0 mi Calm Calm - N/A   Clear
2:03 AM 60.8 °F - 60.8 °F 100% 30.34 in 8.0 mi Calm Calm - N/A   Clear
2:18 AM 60.8 °F - 60.8 °F 100% 30.34 in 9.0 mi NNW 1.2 mph - N/A   Clear
2:43 AM 60.8 °F - 60.8 °F 100% 30.34 in 9.0 mi Calm Calm - N/A   Clear
2:58 AM 60.8 °F - 60.8 °F 100% 30.35 in 6.0 mi Calm Calm - N/A   Clear
3:03 AM 60.8 °F - 60.8 °F 100% 30.34 in 3.0 mi Calm Calm - N/A   Clear
3:13 AM 60.8 °F - 60.8 °F 100% 30.34 in 9.0 mi Calm Calm - N/A   Clear
3:18 AM 60.8 °F - 60.8 °F 100% 30.34 in 10.0 mi Calm Calm - N/A   Clear
3:58 AM 61.0 °F - 61.0 °F 100% 30.36 in 10.0 mi Calm Calm - N/A   Clear
4:38 AM 60.8 °F - 60.8 °F 100% 30.36 in 9.0 mi Calm Calm - N/A   Scattered Clouds
4:43 AM 60.8 °F - 60.8 °F 100% 30.36 in 9.0 mi Calm Calm - N/A   Mostly Cloudy
4:48 AM 60.8 °F - 60.8 °F 100% 30.37 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:58 AM 61.2 °F - 61.2 °F 100% 30.38 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
5:03 AM 60.8 °F - 60.8 °F 100% 30.37 in 10.0 mi Calm Calm - N/A   Scattered Clouds
5:13 AM 60.8 °F - 60.8 °F 100% 30.37 in 8.0 mi Calm Calm - N/A   Scattered Clouds
5:18 AM 60.8 °F - 60.8 °F 100% 30.37 in 4.0 mi Calm Calm - N/A   Scattered Clouds
5:23 AM 60.8 °F - 60.8 °F 100% 30.37 in 4.0 mi Calm Calm - N/A   Scattered Clouds
5:58 AM 60.3 °F - 60.3 °F 100% 30.39 in 8.0 mi Calm Calm - N/A   Partly Cloudy
6:03 AM 60.8 °F - 60.8 °F 100% 30.39 in 10.0 mi Calm Calm - N/A   Partly Cloudy
6:13 AM 60.8 °F - 60.8 °F 100% 30.39 in 9.0 mi Calm Calm - N/A   Partly Cloudy
6:23 AM 60.8 °F - 60.8 °F 100% 30.40 in 8.0 mi Calm Calm - N/A   Scattered Clouds
6:58 AM 60.3 °F - 60.3 °F 100% 30.42 in 9.0 mi NW 1.2 mph - N/A   Clear
7:58 AM 62.6 °F - 62.6 °F 100% 30.43 in 10.0 mi ESE 1.2 mph - N/A   Clear
8:58 AM 69.8 °F - 66.9 °F 91% 30.43 in 10.0 mi Variable 2.3 mph - N/A   Clear
9:58 AM 73.6 °F - 63.1 °F 70% 30.44 in 10.0 mi Variable 3.5 mph - N/A   Clear
10:58 AM 75.9 °F - 60.4 °F 59% 30.43 in 10.0 mi Variable 4.6 mph - N/A   Clear
11:58 AM 76.6 °F - 55.6 °F 48% 30.42 in 10.0 mi Variable 2.3 mph - N/A   Partly Cloudy
12:58 PM 78.4 °F - 57.4 °F 48% 30.41 in 10.0 mi Variable 3.5 mph - N/A   Clear
1:58 PM 79.2 °F - 55.8 °F 44% 30.39 in 10.0 mi SE 4.6 mph - N/A   Clear
2:58 PM 80.2 °F 80.2 °F 54.9 °F 41% 30.37 in 10.0 mi Variable 2.3 mph - N/A   Clear
3:58 PM 80.1 °F 80.2 °F 55.8 °F 43% 30.35 in 10.0 mi SSE 4.6 mph - N/A   Clear
4:58 PM 79.9 °F - 56.5 °F 45% 30.34 in 10.0 mi SSE 6.9 mph - N/A   Clear
5:58 PM 78.4 °F - 59.0 °F 51% 30.32 in 10.0 mi SSE 8.1 mph - N/A   Clear
6:58 PM 74.3 °F - 56.8 °F 54% 30.31 in 10.0 mi SSE 5.8 mph - N/A   Clear
7:58 PM 71.2 °F - 54.9 °F 56% 30.31 in 10.0 mi South 3.5 mph - N/A   Clear
8:58 PM 64.4 °F - 58.1 °F 80% 30.31 in 10.0 mi Calm Calm - N/A   Clear
9:58 PM 63.1 °F - 59.0 °F 86% 30.32 in 10.0 mi Calm Calm - N/A   Clear
10:58 PM 60.6 °F - 59.0 °F 94% 30.32 in 10.0 mi Calm Calm - N/A   Clear
11:58 PM 59.5 °F - 59.2 °F 99% 30.33 in 10.0 mi Calm Calm - N/A   Clear