Washington, VA

5:27 PM EDT on October 23, 2017 (GMT -0400)
Ronald Reagan Washington National

Weather History for KDCA - December, 2012

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Saturday, December 22, 2012

  Actual Average Record
Temperature  
Mean Temperature 40 °F 38 °F  
Max Temperature 45 °F 45 °F 72 °F (1889)
Min Temperature 35 °F 31 °F 3 °F (1872)
Degree Days  
Heating Degree Days 25 27  
Month to date heating degree days 366 534  
Since 1 July heating degree days 1077 1229  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1975 1549  
Moisture  
Dew Point 20 °F    
Average Humidity 43    
Maximum Humidity 52    
Minimum Humidity 33    
Precipitation  
Precipitation 0.00 in 0.10 in 1.68 in (1881)
Month to date precipitation 1.27 2.25  
Year to date precipitation 30.69 38.94  
Snow  
Snow 0.00 in 0.10 in 8.50 in (1908)
Month to date snowfall 0.0 1.5  
Since 1 July snowfall T 2.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.84 in    
Wind  
Wind Speed 17 mph (WNW)    
Max Wind Speed 31 mph    
Max Gust Speed 43 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Date:

Astronomy

Dec. 22, 2012 Rise Set
Actual Time 7:23 AM EST 4:50 PM EST
Civil Twilight 6:53 AM EST 5:20 PM EST
Nautical Twilight 6:20 AM EST 5:53 PM EST
Astronomical Twilight 5:47 AM EST 6:26 PM EST
Moon 1:05 PM EST (12/22) 2:08 AM EST (12/22)
Length of Visible Light 10h 26m
Length of Day
9h 26m
Waxing Gibbous, 73% of the Moon is Illuminated
Dec 22
Waxing Gibbous
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
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 39.9 °F 30.8 °F 19.9 °F 45% 29.59 in 10.0 mi West 18.4 mph 32.2 mph N/A   Mostly Cloudy
1:52 AM 39.9 °F 30.0 °F 19.9 °F 45% 29.60 in 10.0 mi West 21.9 mph 34.5 mph N/A   Mostly Cloudy
2:52 AM 39.9 °F 30.8 °F 21.0 °F 47% 29.62 in 10.0 mi WNW 18.4 mph 34.5 mph N/A   Scattered Clouds
3:52 AM 39.2 °F 33.6 °F 21.2 °F 49% 29.64 in 10.0 mi WNW 8.1 mph 27.6 mph N/A   Mostly Cloudy
4:52 AM 39.9 °F 31.1 °F 21.0 °F 47% 29.67 in 10.0 mi WNW 17.3 mph 28.8 mph N/A   Mostly Cloudy
5:52 AM 39.9 °F 31.1 °F 19.9 °F 45% 29.71 in 10.0 mi WNW 17.3 mph 24.2 mph N/A   Mostly Cloudy
6:52 AM 39.2 °F 30.2 °F 19.4 °F 45% 29.74 in 10.0 mi NW 17.3 mph 25.3 mph N/A   Mostly Cloudy
7:52 AM 39.9 °F 29.2 °F 19.9 °F 45% 29.78 in 10.0 mi NW 25.3 mph 34.5 mph N/A   Mostly Cloudy
8:52 AM 39.9 °F 31.4 °F 21.0 °F 47% 29.83 in 10.0 mi NW 16.1 mph 31.1 mph N/A   Mostly Cloudy
9:52 AM 39.9 °F 32.1 °F 21.0 °F 47% 29.87 in 10.0 mi NW 13.8 mph 27.6 mph N/A   Mostly Cloudy
10:52 AM 41.0 °F 33.1 °F 19.9 °F 43% 29.88 in 10.0 mi NW 15.0 mph 32.2 mph N/A   Mostly Cloudy
11:52 AM 43.0 °F 32.9 °F 18.0 °F 37% 29.88 in 10.0 mi WNW 27.6 mph 42.6 mph N/A   Mostly Cloudy
12:52 PM 45.0 °F 37.4 °F 19.0 °F 36% 29.87 in 10.0 mi NW 18.4 mph 36.8 mph N/A   Mostly Cloudy
1:52 PM 45.0 °F 37.1 °F 19.0 °F 36% 29.87 in 10.0 mi WNW 19.6 mph 34.5 mph N/A   Scattered Clouds
2:52 PM 44.1 °F 35.0 °F 18.0 °F 35% 29.89 in 10.0 mi WNW 24.2 mph 39.1 mph N/A   Partly Cloudy
3:52 PM 43.0 °F 33.8 °F 19.0 °F 38% 29.92 in 10.0 mi NW 23.0 mph 35.7 mph N/A   Partly Cloudy
4:19 PM 42.8 °F 34.5 °F 19.4 °F 39% 29.92 in 10.0 mi NW 18.4 mph 41.4 mph N/A   Scattered Clouds
4:52 PM 41.0 °F 33.9 °F 19.0 °F 41% 29.95 in 10.0 mi NW 12.7 mph 26.5 mph N/A   Mostly Cloudy
5:52 PM 39.9 °F 30.5 °F 19.0 °F 43% 29.97 in 10.0 mi WNW 19.6 mph 32.2 mph N/A   Partly Cloudy
6:52 PM 37.9 °F 29.2 °F 19.0 °F 47% 30.00 in 10.0 mi WNW 15.0 mph 19.6 mph N/A   Clear
7:52 PM 37.0 °F 31.6 °F 19.0 °F 48% 30.01 in 10.0 mi NW 6.9 mph 18.4 mph N/A   Clear
8:52 PM 36.0 °F 29.0 °F 19.0 °F 50% 30.04 in 10.0 mi WNW 9.2 mph - N/A   Clear
9:52 PM 36.0 °F 28.0 °F 19.0 °F 50% 30.04 in 10.0 mi West 11.5 mph - N/A   Clear
10:52 PM 35.1 °F 28.6 °F 19.0 °F 52% 30.06 in 10.0 mi West 8.1 mph - N/A   Clear
11:52 PM 35.1 °F 26.9 °F 18.0 °F 50% 30.06 in 10.0 mi West 11.5 mph - N/A   Clear