Weather History for Dulles Airport, VA

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Sunday, January 26, 2014

  Actual Average Record
Temperature  
Mean Temperature 21 °F 34 °F  
Max Temperature 32 °F 43 °F 70 °F (1967)
Min Temperature 9 °F 24 °F 3 °F (1987)
Degree Days  
Heating Degree Days 44 32  
Month to date heating degree days 951 832  
Since 1 July heating degree days 2708 2630  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 5 °F    
Average Humidity 58    
Maximum Humidity 84    
Minimum Humidity 31    
Precipitation  
Precipitation T in 0.09 in 1.31 in (2011)
Month to date precipitation 2.68 2.22  
Year to date precipitation 2.68 2.22  
Snow  
Snow T in 0.20 in 7.30 in (2011)
Month to date snowfall 11.8 5.8  
Since 1 July snowfall 16.5 9.8  
Snow Depth 2.00 in    
Sea Level Pressure  
Sea Level Pressure 29.83 in    
Wind  
Wind Speed 7 mph (SSW)    
Max Wind Speed 21 mph    
Max Gust Speed 31 mph    
Visibility 10 miles    
Events Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Astronomy

Jan. 26, 2014 Rise Set
Actual Time 7:20 AM EST 5:24 PM EST
Civil Twilight 6:52 AM EST 5:52 PM EST
Nautical Twilight 6:20 AM EST 6:24 PM EST
Astronomical Twilight 5:48 AM EST 6:56 PM EST
Moon 2:55 AM EST (1/26) 1:12 PM EST (1/26)
Length of Visible Light 11h 00m
Length of Day
10h 03m
Waning Crescent, 24% of the Moon is Illuminated
Jan 26
Waning Crescent
Jan 30
New
Feb 6
First Quarter
Feb 14
Full
Feb 22
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 24.1 °F 10.6 °F 8.1 °F 51% 29.72 in 10.0 mi WNW 17.3 mph - N/A   Scattered Clouds
1:52 AM 21.9 °F 15.7 °F 17.1 °F 82% 29.78 in 10.0 mi WNW 4.6 mph - N/A   Overcast
2:52 AM 19.9 °F 8.6 °F 10.9 °F 68% 29.80 in 10.0 mi WNW 10.4 mph - N/A   Clear
3:52 AM 19.9 °F 6.7 °F 3.0 °F 48% 29.81 in 10.0 mi West 13.8 mph - N/A   Clear
4:52 AM 19.0 °F 7.5 °F 1.9 °F 47% 29.85 in 10.0 mi West 10.4 mph - N/A   Partly Cloudy
5:52 AM 16.0 °F 4.4 °F 1.9 °F 54% 29.88 in 10.0 mi WNW 9.2 mph - N/A   Clear
6:52 AM 16.0 °F 7.4 °F -0.0 °F 49% 29.92 in 10.0 mi WSW 5.8 mph - N/A   Partly Cloudy
7:52 AM 12.9 °F 3.8 °F 1.9 °F 62% 29.92 in 10.0 mi SE 5.8 mph - N/A   Scattered Clouds
8:52 AM 19.0 °F - 3.0 °F 50% 29.93 in 10.0 mi Calm Calm - N/A   Scattered Clouds
9:52 AM 23.0 °F - 1.0 °F 39% 29.92 in 10.0 mi Calm Calm - N/A   Scattered Clouds
10:52 AM 24.1 °F 14.4 °F 3.0 °F 40% 29.90 in 10.0 mi SSE 9.2 mph - N/A   Scattered Clouds
11:52 AM 26.1 °F 16.2 °F 3.0 °F 37% 29.88 in 10.0 mi South 10.4 mph - N/A   Mostly Cloudy
12:52 PM 27.0 °F 19.5 °F 3.9 °F 37% 29.85 in 10.0 mi SSE 6.9 mph - N/A   Overcast
1:52 PM 27.0 °F 21.6 °F 6.1 °F 41% 29.85 in 10.0 mi East 4.6 mph - 0.00 in Snow Light Snow
2:52 PM 28.9 °F 19.8 °F 3.0 °F 33% 29.82 in 10.0 mi South 10.4 mph - 0.00 in   Overcast
3:52 PM 30.0 °F 21.7 °F 3.0 °F 32% 29.80 in 10.0 mi South 9.2 mph - N/A   Overcast
4:52 PM 30.9 °F 25.2 °F 8.1 °F 38% 29.81 in 10.0 mi South 5.8 mph - N/A   Overcast
5:52 PM 32.0 °F 25.6 °F 6.1 °F 34% 29.81 in 10.0 mi South 6.9 mph - N/A   Overcast
6:52 PM 30.0 °F 22.4 °F 5.0 °F 35% 29.80 in 10.0 mi South 8.1 mph - N/A   Scattered Clouds
7:52 PM 27.0 °F - 5.0 °F 39% 29.80 in 10.0 mi Calm Calm - N/A   Partly Cloudy
8:52 PM 21.0 °F 16.2 °F 6.1 °F 53% 29.79 in 10.0 mi SW 3.5 mph - N/A   Partly Cloudy
9:52 PM 18.0 °F - 9.0 °F 68% 29.79 in 10.0 mi Calm Calm - N/A   Partly Cloudy
10:52 PM 19.9 °F 14.9 °F 8.1 °F 60% 29.77 in 10.0 mi SE 3.5 mph - N/A   Partly Cloudy
11:52 PM 26.1 °F 17.6 °F 9.0 °F 49% 29.73 in 10.0 mi South 8.1 mph - N/A   Clear