Fort Belvoir, VA

12:26 AM EDT on July 27, 2017 (GMT -0400)
Davison Army Air Field

Weather History for KDAA - September, 2013

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Friday, September 20, 2013

  Actual Average Record
Temperature  
Mean Temperature 66 °F -  
Max Temperature 80 °F 76 °F 91 °F (1997)
Min Temperature 52 °F 55 °F 46 °F (2001)
Cooling Degree Days 1    
Growing Degree Days 16 (Base 50)    
Moisture  
Dew Point 58 °F    
Average Humidity 77    
Maximum Humidity 99    
Minimum Humidity 49    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.06 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

Sep. 20, 2013 Rise Set
Actual Time 6:54 AM EDT 7:08 PM EDT
Civil Twilight 6:28 AM EDT 7:35 PM EDT
Nautical Twilight 5:57 AM EDT 8:06 PM EDT
Astronomical Twilight 5:25 AM EDT 8:37 PM EDT
Moon 7:42 PM EDT (9/20) 8:05 AM EDT (9/20)
Length of Visible Light 13h 06m
Length of Day
12h 13m
Full, 98% of the Moon is Illuminated
Sep 20
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter
Oct 18
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 56.3 °F - 55.9 °F 99% 30.11 in 10.0 mi Calm Calm - N/A   Clear
1:58 AM 55.8 °F - 55.4 °F 99% 30.12 in 10.0 mi Calm Calm - N/A   Clear
2:58 AM 55.6 °F - 55.4 °F 99% 30.11 in 10.0 mi Calm Calm - N/A   Clear
3:58 AM 54.1 °F - 54.0 °F 99% 30.11 in 10.0 mi Calm Calm - N/A   Clear
4:58 AM 53.4 °F - 53.1 °F 99% 30.11 in 10.0 mi Calm Calm - N/A   Clear
5:58 AM 52.9 °F - 52.7 °F 99% 30.11 in 10.0 mi SE 1.2 mph - N/A   Clear
6:58 AM 52.9 °F - 52.7 °F 99% 30.11 in 8.0 mi NW 1.2 mph - N/A   Clear
7:58 AM 54.0 °F - 53.8 °F 99% 30.12 in 10.0 mi Calm Calm - N/A   Clear
8:58 AM 63.0 °F - 59.7 °F 89% 30.12 in 10.0 mi NE 1.2 mph - N/A   Clear
9:58 AM 68.7 °F - 58.8 °F 71% 30.11 in 10.0 mi Variable 5.8 mph - N/A   Clear
10:58 AM 71.6 °F - 59.0 °F 64% 30.10 in 10.0 mi Variable 4.6 mph - N/A   Clear
11:58 AM 74.7 °F - 58.6 °F 57% 30.09 in 10.0 mi Variable 5.8 mph - N/A   Clear
12:58 PM 77.5 °F - 58.6 °F 52% 30.07 in 10.0 mi South 8.1 mph - N/A   Partly Cloudy
1:58 PM 78.3 °F - 58.6 °F 51% 30.05 in 10.0 mi SSE 6.9 mph - N/A   Partly Cloudy
2:58 PM 80.1 °F 80.8 °F 59.5 °F 49% 30.04 in 10.0 mi South 6.9 mph - N/A   Mostly Cloudy
3:58 PM 79.0 °F - 59.5 °F 51% 30.03 in 10.0 mi SW 5.8 mph - N/A   Clear
4:58 PM 79.2 °F - 59.4 °F 51% 30.01 in 10.0 mi Variable 6.9 mph - N/A   Clear
5:58 PM 77.4 °F - 59.7 °F 54% 29.99 in 10.0 mi SSE 4.6 mph - N/A   Clear
6:58 PM 73.0 °F - 60.1 °F 64% 29.99 in 10.0 mi ESE 3.5 mph - N/A   Clear
7:58 PM 68.7 °F - 60.1 °F 74% 29.99 in 10.0 mi SE 5.8 mph - N/A   Clear
8:58 PM 66.4 °F - 59.4 °F 78% 30.00 in 10.0 mi SE 5.8 mph - N/A   Clear
9:58 PM 67.3 °F - 59.2 °F 75% 30.01 in 10.0 mi SE 8.1 mph - N/A   Scattered Clouds
10:58 PM 64.4 °F - 59.0 °F 83% 30.01 in 10.0 mi SE 4.6 mph - N/A   Clear
11:58 PM 62.2 °F - 59.9 °F 92% 30.00 in 10.0 mi North - - N/A   Clear