Arlington, DC

9:38 AM EDT on July 29, 2016 (GMT -0400)
Ronald Reagan Washington National

Weather History for KDCA - January, 2011

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Thursday, January 13, 2011

  Actual Average Record
Temperature  
Mean Temperature 32 °F 36 °F  
Max Temperature 37 °F 43 °F 75 °F (1932)
Min Temperature 26 °F 28 °F -8 °F (1912)
Degree Days  
Heating Degree Days 33 29  
Month to date heating degree days 393 377  
Since 1 July heating degree days 1898 1858  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 13 °F    
Average Humidity 48    
Maximum Humidity 58    
Minimum Humidity 37    
Precipitation  
Precipitation 0.00 in 0.09 in 1.26 in (1948)
Month to date precipitation 0.20 1.16  
Year to date precipitation 0.20 1.16  
Snow  
Snow 0.00 in 0.20 in 6.40 in (1982)
Month to date snowfall 1.4 1.8  
Since 1 July snowfall 3.5 4.6  
Snow Depth T in    
Sea Level Pressure  
Sea Level Pressure 30.30 in    
Wind  
Wind Speed 12 mph (NW)    
Max Wind Speed 25 mph    
Max Gust Speed 33 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Date:

Astronomy

Jan. 13, 2011 Rise Set
Actual Time 7:25 AM EST 5:08 PM EST
Civil Twilight 6:56 AM EST 5:37 PM EST
Nautical Twilight 6:23 AM EST 6:10 PM EST
Astronomical Twilight 5:51 AM EST 6:42 PM EST
Moon 11:48 AM EST (1/13) 1:22 AM EST (1/13)
Length of Visible Light 10h 40m
Length of Day
9h 42m
First Quarter, 62% of the Moon is Illuminated
Jan 13
First Quarter
Jan 19
Full
Jan 26
Last Quarter
Feb 2
New
Feb 11
First Quarter

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 28.9 °F 19.2 °F 12.9 °F 51% 30.13 in 10.0 mi NW 11.5 mph 19.6 mph N/A   Scattered Clouds
1:52 AM 28.9 °F 17.7 °F 12.9 °F 51% 30.14 in 10.0 mi NW 15.0 mph 23.0 mph N/A   Mostly Cloudy
2:52 AM 28.0 °F 17.0 °F 12.9 °F 53% 30.17 in 10.0 mi NNW 13.8 mph 21.9 mph N/A   Partly Cloudy
3:52 AM 28.0 °F 18.6 °F 12.9 °F 53% 30.19 in 10.0 mi NW 10.4 mph - N/A   Partly Cloudy
4:52 AM 28.4 °F 18.0 °F 12.2 °F 51% 30.22 in 10.0 mi NW 12.7 mph 18.4 mph N/A   Partly Cloudy
5:52 AM 27.0 °F 20.5 °F 12.0 °F 53% 30.23 in 10.0 mi WNW 5.8 mph - N/A   Scattered Clouds
6:52 AM 27.0 °F 20.5 °F 12.0 °F 53% 30.25 in 10.0 mi NW 5.8 mph 18.4 mph N/A   Scattered Clouds
7:52 AM 28.0 °F 20.0 °F 12.9 °F 53% 30.28 in 10.0 mi NW 8.1 mph - N/A   Mostly Cloudy
8:52 AM 28.9 °F 18.2 °F 12.9 °F 51% 30.32 in 10.0 mi NW 13.8 mph 18.4 mph N/A   Mostly Cloudy
9:52 AM 30.9 °F 20.2 °F 14.0 °F 50% 30.34 in 10.0 mi WNW 15.0 mph 26.5 mph N/A   Overcast
10:52 AM 33.1 °F 21.9 °F 14.0 °F 46% 30.34 in 10.0 mi NW 18.4 mph 29.9 mph N/A   Overcast
11:52 AM 34.0 °F 23.4 °F 14.0 °F 44% 30.33 in 10.0 mi NW 17.3 mph 29.9 mph N/A   Mostly Cloudy
12:52 PM 35.1 °F 24.5 °F 14.0 °F 42% 30.31 in 10.0 mi WNW 18.4 mph 32.2 mph N/A   Scattered Clouds
1:52 PM 36.0 °F 26.3 °F 14.0 °F 41% 30.30 in 10.0 mi NW 16.1 mph 25.3 mph N/A   Scattered Clouds
2:52 PM 37.0 °F 28.9 °F 14.0 °F 39% 30.30 in 10.0 mi NW 12.7 mph 25.3 mph N/A   Partly Cloudy
3:52 PM 37.4 °F 28.5 °F 14.0 °F 38% 30.32 in 10.0 mi WNW 15.0 mph 21.9 mph N/A   Scattered Clouds
4:52 PM 34.0 °F 25.5 °F 12.9 °F 42% 30.34 in 10.0 mi WNW 11.5 mph 19.6 mph N/A   Scattered Clouds
5:52 PM 33.1 °F 23.4 °F 12.9 °F 43% 30.35 in 10.0 mi WNW 13.8 mph - N/A   Clear
6:52 PM 30.9 °F 22.2 °F 12.9 °F 47% 30.37 in 10.0 mi NW 10.4 mph - N/A   Clear
7:52 PM 30.0 °F 21.7 °F 12.0 °F 47% 30.38 in 10.0 mi WNW 9.2 mph - N/A   Clear
8:52 PM 28.9 °F 18.6 °F 10.9 °F 47% 30.39 in 10.0 mi WNW 12.7 mph - N/A   Clear
9:52 PM 28.0 °F 17.0 °F 10.9 °F 49% 30.40 in 10.0 mi NW 13.8 mph - N/A   Clear
10:52 PM 27.0 °F 18.7 °F 10.9 °F 51% 30.41 in 10.0 mi NW 8.1 mph - N/A   Clear
11:52 PM 26.1 °F 17.6 °F 10.9 °F 53% 30.41 in 10.0 mi NW 8.1 mph - N/A   Partly Cloudy