Weather History for KDCA - January, 2012

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Wednesday, January 25, 2012

  Actual Average Record
Temperature  
Mean Temperature 43 °F 36 °F  
Max Temperature 49 °F 44 °F 75 °F (1950)
Min Temperature 36 °F 29 °F 3 °F (1935)
Degree Days  
Heating Degree Days 22 29  
Month to date heating degree days 635 725  
Since 1 July heating degree days 1843 2206  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 31 °F    
Average Humidity 61    
Maximum Humidity 76    
Minimum Humidity 46    
Precipitation  
Precipitation 0.00 in 0.09 in 1.66 in (1978)
Month to date precipitation 1.56 2.26  
Year to date precipitation 1.56 2.26  
Snow  
Snow 0.00 in 0.20 in 9.30 in (2000)
Month to date snowfall 1.7 4.2  
Since 1 July snowfall 1.7 7.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.29 in    
Wind  
Wind Speed 6 mph (NNE)    
Max Wind Speed 16 mph    
Max Gust Speed 21 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jan. 25, 2012 Rise Set
Actual Time 7:20 AM EST 5:21 PM EST
Civil Twilight 6:51 AM EST 5:49 PM EST
Nautical Twilight 6:19 AM EST 6:21 PM EST
Astronomical Twilight 5:47 AM EST 6:53 PM EST
Moon 8:20 AM EST (1/25) 8:09 PM EST (1/25)
Length of Visible Light 10h 58m
Length of Day
10h 00m
Waxing Crescent, 6% of the Moon is Illuminated
Jan 25
Waxing Crescent
Jan 30
First Quarter
Feb 7
Full
Feb 14
Last Quarter
Feb 21
New

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 41.0 °F 35.8 °F 32.0 °F 70% 30.24 in 10.0 mi NNW 8.1 mph - N/A   Clear
1:52 AM 39.0 °F 33.4 °F 32.0 °F 76% 30.25 in 10.0 mi North 8.1 mph - N/A   Clear
2:52 AM 39.0 °F 33.4 °F 30.9 °F 73% 30.27 in 10.0 mi North 8.1 mph - N/A   Clear
3:52 AM 39.0 °F 31.8 °F 30.9 °F 73% 30.30 in 10.0 mi NNW 11.5 mph - N/A   Clear
4:52 AM 37.9 °F 31.5 °F 30.0 °F 73% 30.30 in 10.0 mi North 9.2 mph - N/A   Clear
5:52 AM 37.9 °F 31.5 °F 30.0 °F 73% 30.32 in 10.0 mi North 9.2 mph - N/A   Clear
6:52 AM 37.0 °F 29.8 °F 28.9 °F 73% 30.34 in 10.0 mi North 10.4 mph - N/A   Scattered Clouds
7:52 AM 37.4 °F 30.3 °F 28.4 °F 70% 30.37 in 10.0 mi North 10.4 mph - N/A   Mostly Cloudy
8:52 AM 39.9 °F 32.1 °F 30.0 °F 68% 30.38 in 10.0 mi North 13.8 mph - N/A   Overcast
9:52 AM 43.0 °F 36.4 °F 30.0 °F 60% 30.40 in 10.0 mi North 12.7 mph - N/A   Overcast
10:52 AM 44.1 °F 40.8 °F 28.9 °F 55% 30.39 in 10.0 mi NNE 5.8 mph - N/A   Mostly Cloudy
11:52 AM 46.0 °F 43.1 °F 28.9 °F 51% 30.35 in 10.0 mi ENE 5.8 mph - N/A   Mostly Cloudy
12:52 PM 46.9 °F - 28.9 °F 50% 30.31 in 10.0 mi East 3.5 mph - N/A   Scattered Clouds
1:52 PM 48.0 °F - 28.9 °F 48% 30.28 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:52 PM 46.4 °F 42.9 °F 30.2 °F 53% 30.27 in 10.0 mi South 6.9 mph - N/A   Mostly Cloudy
3:52 PM 48.0 °F - 32.0 °F 54% 30.26 in 10.0 mi South 6.9 mph - N/A   Mostly Cloudy
4:52 PM 45.0 °F 41.8 °F 34.0 °F 65% 30.25 in 10.0 mi South 5.8 mph - N/A   Mostly Cloudy
5:52 PM 46.9 °F - 30.9 °F 54% 30.27 in 10.0 mi Calm Calm - N/A   Overcast
6:52 PM 44.1 °F 39.5 °F 32.0 °F 63% 30.26 in 10.0 mi ESE 8.1 mph - N/A   Mostly Cloudy
7:52 PM 42.1 °F - 32.0 °F 67% 30.26 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
8:52 PM 42.1 °F 40.2 °F 32.0 °F 67% 30.26 in 10.0 mi ESE 3.5 mph - N/A   Mostly Cloudy
9:52 PM 41.0 °F - 30.9 °F 67% 30.25 in 10.0 mi Calm Calm - N/A   Overcast
10:52 PM 41.0 °F 38.0 °F 33.1 °F 73% 30.24 in 10.0 mi East 4.6 mph - N/A   Overcast
11:52 PM 41.0 °F - 33.1 °F 73% 30.23 in 9.0 mi Calm Calm - N/A   Overcast