Weather History for Fort Belvoir, VA

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Monday, March 18, 2013

  Actual Average Record
Temperature  
Mean Temperature 2 °C -  
Max Temperature 3 °C 11 °C 26 °C (2011)
Min Temperature -1 °C 0 °C -4 °C (2005)
Degree Days  
Heating Degree Days 30    
Moisture  
Dew Point 1 °C    
Average Humidity 91    
Maximum Humidity 100    
Minimum Humidity 56    
Precipitation  
Precipitation 5.84 mm - - ()
Sea Level Pressure  
Sea Level Pressure 1022 hPa    
Wind  
Wind Speed 5 km/h (East)    
Max Wind Speed 16 km/h    
Max Gust Speed -    
Visibility 7 kilometers    
Events Rain , Snow    
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

Mar. 18, 2013 Rise Set
Actual Time 7:14 AM EDT 7:18 PM EDT
Civil Twilight 6:48 AM EDT 7:45 PM EDT
Nautical Twilight 6:17 AM EDT 8:16 PM EDT
Astronomical Twilight 5:46 AM EDT 8:47 PM EDT
Moon 11:16 AM EDT (3/18) 1:13 AM EDT (3/18)
Length of Visible Light 12h 57m
Length of Day
12h 03m
Waxing Crescent, 40% of the Moon is Illuminated
Mar 18
Waxing Crescent
Mar 19
First Quarter
Mar 27
Full
Apr 3
Last Quarter
Apr 10
New

Hourly Weather History & Observations

Time (EDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:55 AM 2.5 °C - 0.9 °C 89% 1026.2 hPa 16.1 km Calm Calm - N/A   Scattered Clouds
1:55 AM 2.7 °C - 0.8 °C 87% 1026.1 hPa 16.1 km Calm Calm - N/A   Partly Cloudy
2:50 AM 3.0 °C 1.0 °C -4.0 °C 60% 1025.9 hPa 16.1 km Variable 7.4 km/h / 2.1 m/s - N/A   Clear
2:55 AM 3.3 °C 2.0 °C -4.4 °C 57% 1025.8 hPa 16.1 km Variable 5.6 km/h / 1.5 m/s - 0.0 mm   Clear
3:02 AM 3.0 °C - -5.0 °C 56% 1025.9 hPa 16.1 km Calm Calm - N/A   Clear
3:40 AM 3.0 °C 0.5 °C -5.0 °C 56% 1026.0 hPa 16.1 km East 9.3 km/h / 2.6 m/s - N/A   Clear
3:52 AM 3.0 °C 1.0 °C -5.0 °C 56% 1025.9 hPa 16.1 km Variable 7.4 km/h / 2.1 m/s - N/A   Partly Cloudy
3:55 AM 2.9 °C 0.9 °C -4.5 °C 59% 1025.9 hPa 16.1 km Variable 7.4 km/h / 2.1 m/s - 0.0 mm   Partly Cloudy
4:02 AM 3.0 °C 1.0 °C -5.0 °C 56% 1025.8 hPa 16.1 km Variable 7.4 km/h / 2.1 m/s - N/A   Partly Cloudy
4:29 AM 2.0 °C 0.5 °C -4.0 °C 65% 1025.8 hPa 14.5 km Variable 5.6 km/h / 1.5 m/s - N/A Snow Light Snow
4:34 AM 2.0 °C -1.2 °C -3.0 °C 70% 1025.8 hPa 14.5 km Variable 11.1 km/h / 3.1 m/s - N/A Snow Light Snow
4:55 AM 1.7 °C 0.1 °C -2.2 °C 76% 1025.9 hPa 16.1 km SSE 5.6 km/h / 1.5 m/s - 0.0 mm Snow Light Snow
5:44 AM 1.0 °C - -1.0 °C 87% 1026.5 hPa 6.4 km Calm Calm - N/A Snow Light Snow
5:55 AM 0.8 °C -1.6 °C -0.8 °C 89% 1026.8 hPa 6.4 km SSE 7.4 km/h / 2.1 m/s - 0.0 mm Snow Light Snow
6:15 AM 1.0 °C - -1.0 °C 87% 1027.3 hPa 4.0 km Calm Calm - N/A Snow Light Snow
6:18 AM 1.0 °C - -1.0 °C 87% 1027.3 hPa 3.2 km Calm Calm - N/A Snow Light Snow
6:26 AM 1.0 °C - -1.0 °C 87% 1027.3 hPa 4.0 km Calm Calm - N/A Snow Light Snow
6:30 AM 1.0 °C -0.7 °C -1.0 °C 87% 1027.3 hPa 4.8 km ESE 5.6 km/h / 1.5 m/s - N/A Snow Light Snow
6:38 AM 0.0 °C -2.5 °C -1.0 °C 93% 1027.4 hPa 4.8 km ESE 7.4 km/h / 2.1 m/s - N/A Snow Light Snow
6:40 AM 0.0 °C -3.1 °C -1.0 °C 93% 1027.4 hPa 4.0 km East 9.3 km/h / 2.6 m/s - N/A Snow Light Snow
6:48 AM 0.0 °C -3.1 °C -1.0 °C 93% 1027.3 hPa 4.8 km SE 9.3 km/h / 2.6 m/s - N/A Snow Light Snow
6:51 AM 0.0 °C -3.1 °C -1.0 °C 93% 1027.4 hPa 4.8 km East 9.3 km/h / 2.6 m/s - N/A Snow Light Snow
6:54 AM 0.0 °C -4.0 °C -1.0 °C 93% 1027.4 hPa 4.8 km ESE 13.0 km/h / 3.6 m/s - N/A Snow Light Snow
6:55 AM 0.4 °C -3.1 °C -0.7 °C 92% 1027.4 hPa 4.8 km ESE 11.1 km/h / 3.1 m/s - 0.3 mm Snow Light Snow
6:56 AM 0.0 °C -3.1 °C -1.0 °C 93% 1027.4 hPa 4.0 km ESE 9.3 km/h / 2.6 m/s - N/A Snow Light Snow
7:05 AM 0.0 °C -2.5 °C -1.0 °C 93% 1027.6 hPa 4.8 km Variable 7.4 km/h / 2.1 m/s - N/A Snow Light Snow
7:08 AM 0.0 °C -2.5 °C -1.0 °C 93% 1027.6 hPa 4.0 km ESE 7.4 km/h / 2.1 m/s - N/A Snow Light Snow
7:12 AM 0.0 °C -3.1 °C -1.0 °C 93% 1027.6 hPa 3.2 km Variable 9.3 km/h / 2.6 m/s - N/A Snow Light Snow
7:14 AM 0.0 °C -3.1 °C -1.0 °C 93% 1027.7 hPa 2.8 km ESE 9.3 km/h / 2.6 m/s - N/A Snow Light Snow
7:15 AM 0.0 °C -3.1 °C -1.0 °C 93% 1027.7 hPa 2.4 km ESE 9.3 km/h / 2.6 m/s - N/A Snow Light Snow
7:17 AM 0.0 °C -2.5 °C -1.0 °C 93% 1027.7 hPa 2.0 km ESE 7.4 km/h / 2.1 m/s - N/A Snow Light Snow
7:22 AM 0.0 °C -3.1 °C -1.0 °C 93% 1027.7 hPa 1.6 km SE 9.3 km/h / 2.6 m/s - N/A Snow Light Snow
7:32 AM 0.0 °C -2.5 °C -1.0 °C 93% 1027.6 hPa 1.6 km ESE 7.4 km/h / 2.1 m/s - N/A Snow Light Snow
7:55 AM -0.2 °C -3.8 °C -1.2 °C 93% 1027.8 hPa 1.6 km ESE 11.1 km/h / 3.1 m/s - 0.5 mm Snow Light Snow
7:56 AM 0.0 °C -4.0 °C -1.0 °C 93% 1027.8 hPa 2.0 km ESE 13.0 km/h / 3.6 m/s - N/A Snow Light Snow
8:00 AM 0.0 °C -3.1 °C -1.0 °C 93% 1027.8 hPa 2.4 km Variable 9.3 km/h / 2.6 m/s - N/A Snow Light Snow
8:02 AM 0.0 °C -4.0 °C -1.0 °C 93% 1027.7 hPa 2.8 km East 13.0 km/h / 3.6 m/s - N/A Snow Light Snow
8:04 AM 0.0 °C -3.1 °C -1.0 °C 93% 1027.7 hPa 3.2 km Variable 9.3 km/h / 2.6 m/s - N/A Snow Light Snow
8:07 AM 0.0 °C -2.5 °C -1.0 °C 93% 1027.8 hPa 4.0 km Variable 7.4 km/h / 2.1 m/s - N/A Snow Light Snow
8:10 AM 0.0 °C -2.5 °C -1.0 °C 93% 1027.9 hPa 4.8 km Variable 7.4 km/h / 2.1 m/s - N/A Snow Light Snow
8:19 AM 0.0 °C - -2.0 °C 87% 1027.8 hPa 6.4 km Calm Calm - N/A   Overcast
8:20 AM 0.0 °C -1.8 °C -2.0 °C 87% 1027.8 hPa 6.4 km Variable 5.6 km/h / 1.5 m/s - N/A   Overcast
8:23 AM 0.0 °C -2.5 °C -2.0 °C 87% 1027.6 hPa 8.0 km Variable 7.4 km/h / 2.1 m/s - N/A Snow Light Snow
8:48 AM 0.0 °C - -1.0 °C 93% 1027.3 hPa 6.4 km Calm Calm - N/A   Overcast
8:55 AM -0.1 °C - -1.2 °C 92% 1027.1 hPa 8.0 km Calm Calm - 0.0 mm   Overcast
9:01 AM 0.0 °C - -1.0 °C 93% 1027.0 hPa 9.7 km Calm Calm - N/A   Overcast
9:13 AM 0.0 °C - -1.0 °C 93% 1027.0 hPa 14.5 km Calm Calm - N/A   Overcast
9:55 AM 0.2 °C -1.6 °C -1.4 °C 89% 1026.3 hPa 16.1 km Variable 5.6 km/h / 1.5 m/s - 0.0 mm   Overcast
10:22 AM 0.0 °C -2.5 °C -1.0 °C 93% 1026.3 hPa 14.5 km Variable 7.4 km/h / 2.1 m/s - N/A   Overcast
10:28 AM 1.0 °C -0.7 °C -1.0 °C 87% 1026.1 hPa 16.1 km East 5.6 km/h / 1.5 m/s - N/A   Overcast
10:55 AM 0.7 °C - -1.2 °C 87% 1025.9 hPa 14.5 km Calm Calm - N/A   Overcast
11:55 AM 1.5 °C -1.8 °C -0.6 °C 86% 1023.7 hPa 16.1 km ESE 11.1 km/h / 3.1 m/s - N/A   Overcast
11:59 AM 2.0 °C -0.7 °C 0.0 °C 87% 1023.6 hPa 16.1 km Variable 9.3 km/h / 2.6 m/s - N/A   Overcast
12:05 PM 2.0 °C -1.2 °C 0.0 °C 87% 1023.5 hPa 16.1 km Variable 11.1 km/h / 3.1 m/s - N/A   Overcast
12:18 PM 2.0 °C -2.2 °C 0.0 °C 87% 1023.3 hPa 16.1 km East 16.7 km/h / 4.6 m/s - N/A   Overcast
12:31 PM 2.0 °C -1.2 °C 0.0 °C 87% 1023.5 hPa 16.1 km Variable 11.1 km/h / 3.1 m/s - N/A   Overcast
12:55 PM 2.2 °C - -0.0 °C 86% 1023.6 hPa 16.1 km Calm Calm - N/A   Overcast
1:55 PM 2.6 °C - 0.8 °C 88% 1022.0 hPa 16.1 km Calm Calm - N/A   Overcast
2:26 PM 3.0 °C - 1.0 °C 87% 1021.4 hPa 4.0 km Calm Calm - N/A   Overcast
2:35 PM 3.0 °C 1.6 °C 1.0 °C 87% 1020.8 hPa 3.2 km Variable 5.6 km/h / 1.5 m/s - N/A   Overcast
2:47 PM 3.0 °C 1.0 °C 1.0 °C 87% 1020.4 hPa 3.2 km East 7.4 km/h / 2.1 m/s - N/A   Overcast
2:48 PM 2.0 °C -0.2 °C 1.0 °C 93% 1020.3 hPa 3.2 km East 7.4 km/h / 2.1 m/s - N/A   Overcast
2:49 PM 2.0 °C 0.5 °C 1.0 °C 93% 1020.2 hPa 3.2 km East 5.6 km/h / 1.5 m/s - N/A   Overcast
2:52 PM 2.0 °C 0.5 °C 2.0 °C 100% 1020.2 hPa 3.2 km Variable 5.6 km/h / 1.5 m/s - N/A   Overcast
2:57 PM 2.0 °C - 2.0 °C 100% 1020.2 hPa 3.2 km Calm Calm - N/A   Overcast
3:15 PM 3.0 °C - 2.0 °C 93% 1019.9 hPa 4.0 km Calm Calm - N/A   Overcast
3:18 PM 3.0 °C 1.6 °C 2.0 °C 93% 1019.7 hPa 4.0 km Variable 5.6 km/h / 1.5 m/s - N/A   Overcast
3:29 PM 3.0 °C 1.6 °C 2.0 °C 93% 1019.2 hPa 4.0 km Variable 5.6 km/h / 1.5 m/s - N/A   Overcast
3:40 PM 3.0 °C - 2.0 °C 93% 1019.2 hPa 4.8 km Calm Calm - N/A   Overcast
3:44 PM 3.0 °C - 2.0 °C 93% 1019.2 hPa 4.8 km Calm Calm - N/A   Overcast
3:55 PM 2.9 °C 1.5 °C 2.0 °C 94% 1018.9 hPa 4.8 km Variable 5.6 km/h / 1.5 m/s - 0.3 mm   Overcast
4:06 PM 3.0 °C - 2.0 °C 93% 1019.0 hPa 6.4 km Calm Calm - N/A   Overcast
4:10 PM 3.0 °C - 2.0 °C 93% 1018.9 hPa 6.4 km Calm Calm - N/A   Overcast
4:20 PM 3.0 °C - 2.0 °C 93% 1019.1 hPa 6.4 km Calm Calm - N/A   Overcast
4:55 PM 3.2 °C - 2.5 °C 95% 1018.5 hPa 1.6 km Calm Calm - 0.3 mm Rain Light Rain
5:53 PM 3.0 °C 0.5 °C 3.0 °C 100% 1018.5 hPa 4.0 km NW 9.3 km/h / 2.6 m/s - N/A Rain Light Rain
5:55 PM 3.3 °C 0.4 °C 2.6 °C 95% 1018.4 hPa 4.0 km NW 11.1 km/h / 3.1 m/s - 1.0 mm Rain Rain
5:57 PM 3.0 °C 1.0 °C 3.0 °C 100% 1018.3 hPa 4.0 km NW 7.4 km/h / 2.1 m/s - N/A Rain Rain
5:58 PM 3.0 °C 1.0 °C 3.0 °C 100% 1018.2 hPa 4.0 km NNW 7.4 km/h / 2.1 m/s - N/A Rain Light Rain
6:02 PM 3.0 °C 1.0 °C 3.0 °C 100% 1018.2 hPa 3.2 km Variable 7.4 km/h / 2.1 m/s - N/A Rain Rain
6:29 PM 3.0 °C 1.6 °C 3.0 °C 100% 1017.6 hPa 4.8 km NNW 5.6 km/h / 1.5 m/s - N/A Rain Light Rain
6:40 PM 3.0 °C - 3.0 °C 100% 1017.2 hPa 3.2 km Calm Calm - N/A Rain Light Rain
6:52 PM 3.0 °C - 3.0 °C 100% 1017.1 hPa 4.8 km Calm Calm - N/A Rain Light Rain
6:54 PM 3.0 °C - 3.0 °C 100% 1017.0 hPa 4.8 km Calm Calm - N/A Rain Light Rain
6:55 PM 3.2 °C - 2.5 °C 95% 1016.9 hPa 4.0 km Calm Calm - 1.5 mm Rain Light Rain
6:59 PM 3.0 °C - 3.0 °C 100% 1016.8 hPa 4.0 km Calm Calm - N/A Rain Light Rain
7:01 PM 3.0 °C - 3.0 °C 100% 1016.7 hPa 4.0 km Calm Calm - N/A Rain Light Rain
7:04 PM 3.0 °C - 3.0 °C 100% 1016.7 hPa 4.0 km Calm Calm - N/A Rain Light Rain
7:12 PM 3.0 °C - 3.0 °C 100% 1016.8 hPa 4.8 km Calm Calm - N/A Rain Light Rain
7:18 PM 3.0 °C - 3.0 °C 100% 1016.8 hPa 4.8 km Calm Calm - N/A Rain Light Rain
7:23 PM 3.0 °C 1.6 °C 3.0 °C 100% 1016.3 hPa 6.4 km East 5.6 km/h / 1.5 m/s - N/A Rain Light Rain
7:25 PM 3.0 °C - 3.0 °C 100% 1016.2 hPa 6.4 km Calm Calm - N/A Rain Light Rain
7:34 PM 3.0 °C - 2.0 °C 93% 1015.8 hPa 4.8 km Calm Calm - N/A Rain Light Rain
7:41 PM 3.0 °C - 3.0 °C 100% 1015.7 hPa 8.0 km Calm Calm - N/A Rain Light Rain
7:46 PM 3.0 °C - 3.0 °C 100% 1015.7 hPa 8.0 km Calm Calm - N/A Rain Light Rain
7:47 PM 3.0 °C - 3.0 °C 100% 1015.7 hPa 8.0 km Calm Calm - N/A Rain Light Rain
7:48 PM 3.0 °C - 3.0 °C 100% 1015.8 hPa 8.0 km Calm Calm - N/A Rain Light Rain
7:55 PM 3.3 °C - 2.7 °C 96% 1016.2 hPa 8.0 km Calm Calm - 1.3 mm Rain Light Rain
8:20 PM 3.0 °C - 3.0 °C 100% 1015.3 hPa 8.0 km Calm Calm - N/A Rain Light Rain
8:24 PM 3.0 °C - 3.0 °C 100% 1015.3 hPa 4.0 km Calm Calm - N/A Rain Light Rain
8:27 PM 3.0 °C - 3.0 °C 100% 1015.5 hPa 4.0 km Calm Calm - N/A Rain Light Rain
8:31 PM 3.0 °C - 3.0 °C 100% 1015.5 hPa 4.8 km Calm Calm - N/A Rain Light Rain
8:39 PM 3.0 °C - 3.0 °C 100% 1015.5 hPa 12.9 km Calm Calm - N/A Rain Light Rain
8:55 PM 3.5 °C - 2.9 °C 96% 1015.3 hPa 8.0 km Calm Calm - 0.5 mm Rain Light Rain
8:58 PM 3.0 °C - 3.0 °C 100% 1015.3 hPa 9.7 km Calm Calm - N/A Rain Light Rain
9:26 PM 4.0 °C 2.8 °C 3.0 °C 93% 1015.2 hPa 8.0 km WNW 5.6 km/h / 1.5 m/s - N/A Rain Light Rain
9:31 PM 4.0 °C - 3.0 °C 93% 1015.1 hPa 8.0 km Calm Calm - N/A Rain Light Rain
9:55 PM 3.6 °C 2.3 °C 3.0 °C 96% 1014.8 hPa 9.7 km WNW 5.6 km/h / 1.5 m/s - 0.3 mm Rain Light Rain
9:58 PM 4.0 °C 2.8 °C 3.0 °C 93% 1014.7 hPa 9.7 km WNW 5.6 km/h / 1.5 m/s - N/A Rain Light Rain
10:32 PM 3.0 °C - 3.0 °C 100% 1013.5 hPa 4.0 km Calm Calm - N/A Rain Light Rain
10:37 PM 3.0 °C - 3.0 °C 100% 1013.4 hPa 4.0 km Calm Calm - N/A   Overcast
10:39 PM 3.0 °C - 3.0 °C 100% 1013.3 hPa 4.0 km Calm Calm - N/A   Overcast
10:55 PM 3.3 °C - 2.9 °C 97% 1013.0 hPa 8.0 km Calm Calm - 0.0 mm   Overcast
11:55 PM 3.7 °C 1.8 °C 2.9 °C 95% 1012.5 hPa 16.1 km NNW 7.4 km/h / 2.1 m/s - N/A   Overcast