Washington, VA

9:25 AM EDT on October 17, 2017 (GMT -0400)
Ronald Reagan Washington National

Weather History for KDCA - January, 2012

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Wednesday, January 18, 2012

  Actual Average Record
Temperature  
Mean Temperature 43 °F 36 °F  
Max Temperature 58 °F 43 °F 69 °F (1990)
Min Temperature 28 °F 28 °F -6 °F (1893)
Degree Days  
Heating Degree Days 22 29  
Month to date heating degree days 437 522  
Since 1 July heating degree days 1645 2003  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 20 °F    
Average Humidity 54    
Maximum Humidity 77    
Minimum Humidity 30    
Precipitation  
Precipitation 0.00 in 0.09 in 1.30 in (1980)
Month to date precipitation 1.25 1.62  
Year to date precipitation 1.25 1.62  
Snow  
Snow 0.00 in 0.20 in 3.60 in (1984)
Month to date snowfall 0.6 2.8  
Since 1 July snowfall 0.6 5.6  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.05 in    
Wind  
Wind Speed 17 mph (NW)    
Max Wind Speed 32 mph    
Max Gust Speed 40 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. 18, 2012 Rise Set
Actual Time 7:24 AM EST 5:13 PM EST
Civil Twilight 6:55 AM EST 5:42 PM EST
Nautical Twilight 6:22 AM EST 6:14 PM EST
Astronomical Twilight 5:50 AM EST 6:46 PM EST
Moon 2:51 AM EST (1/18) 12:50 PM EST (1/18)
Length of Visible Light 10h 47m
Length of Day
9h 49m
Waning Crescent, 25% of the Moon is Illuminated
Jan 18
Waning Crescent
Jan 23
New
Jan 30
First Quarter
Feb 7
Full
Feb 14
Last 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 57.9 °F - 50.0 °F 75% 29.72 in 10.0 mi SW 10.4 mph - N/A   Overcast
1:52 AM 55.0 °F - 37.9 °F 53% 29.77 in 10.0 mi NW 20.7 mph 31.1 mph 0.01 in   Overcast
2:52 AM 48.9 °F - 30.0 °F 48% 29.82 in 10.0 mi NW 24.2 mph 38.0 mph N/A   Clear
3:52 AM 46.9 °F - 26.1 °F 44% 29.85 in 10.0 mi NW 21.9 mph 31.1 mph N/A   Partly Cloudy
4:52 AM 46.0 °F 38.0 °F 21.0 °F 37% 29.89 in 10.0 mi NW 21.9 mph 34.5 mph N/A   Clear
5:52 AM 44.1 °F 37.1 °F 23.0 °F 43% 29.93 in 10.0 mi NW 15.0 mph 23.0 mph N/A   Partly Cloudy
6:52 AM 42.1 °F 33.9 °F 26.1 °F 53% 29.98 in 10.0 mi NW 17.3 mph 25.3 mph N/A   Scattered Clouds
7:52 AM 41.0 °F 33.5 °F 25.0 °F 53% 30.01 in 10.0 mi NW 13.8 mph 23.0 mph N/A   Scattered Clouds
8:52 AM 42.1 °F 33.3 °F 21.0 °F 43% 30.05 in 10.0 mi NNW 19.6 mph 27.6 mph N/A   Scattered Clouds
9:52 AM 42.1 °F 34.2 °F 21.9 °F 45% 30.08 in 10.0 mi NW 16.1 mph 31.1 mph N/A   Scattered Clouds
10:52 AM 43.0 °F 34.2 °F 19.0 °F 38% 30.09 in 10.0 mi NW 20.7 mph 35.7 mph N/A   Scattered Clouds
11:52 AM 42.1 °F 33.3 °F 21.0 °F 43% 30.10 in 10.0 mi NNW 19.6 mph 33.4 mph N/A   Scattered Clouds
12:52 PM 42.1 °F 34.2 °F 16.0 °F 35% 30.09 in 10.0 mi NW 16.1 mph 26.5 mph N/A   Scattered Clouds
1:52 PM 42.1 °F 32.8 °F 15.1 °F 34% 30.09 in 10.0 mi NNW 21.9 mph 28.8 mph N/A   Scattered Clouds
2:52 PM 41.0 °F 31.4 °F 12.9 °F 32% 30.09 in 10.0 mi North 21.9 mph 27.6 mph N/A   Scattered Clouds
3:52 PM 39.9 °F 30.8 °F 12.9 °F 33% 30.12 in 10.0 mi NW 18.4 mph 23.0 mph N/A   Scattered Clouds
4:52 PM 37.0 °F 28.1 °F 10.9 °F 34% 30.14 in 10.0 mi NW 15.0 mph 24.2 mph N/A   Partly Cloudy
5:52 PM 36.0 °F 26.3 °F 12.9 °F 39% 30.15 in 10.0 mi NW 16.1 mph - N/A   Partly Cloudy
6:52 PM 35.1 °F 27.4 °F 12.0 °F 39% 30.19 in 10.0 mi NNW 10.4 mph - N/A   Scattered Clouds
7:52 PM 34.0 °F 23.4 °F 12.9 °F 42% 30.19 in 10.0 mi NNW 17.3 mph 24.2 mph N/A   Mostly Cloudy
8:52 PM 32.0 °F 23.6 °F 14.0 °F 48% 30.18 in 10.0 mi NNW 10.4 mph - N/A   Mostly Cloudy
9:52 PM 30.9 °F 21.2 °F 12.9 °F 47% 30.19 in 10.0 mi NNE 12.7 mph - N/A   Partly Cloudy
10:52 PM 28.9 °F 21.1 °F 12.9 °F 51% 30.21 in 10.0 mi North 8.1 mph - N/A   Clear
11:52 PM 28.0 °F 20.8 °F 12.9 °F 53% 30.21 in 10.0 mi NNW 6.9 mph - N/A   Clear