Weather History for Dulles Airport, VA

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Tuesday, March 11, 2014

  Actual Average Record
Temperature  
Mean Temperature 52 °F 42 °F  
Max Temperature 65 °F 54 °F 77 °F (1990)
Min Temperature 39 °F 31 °F 13 °F (1996)
Degree Days  
Heating Degree Days 13 23  
Month to date heating degree days 346 266  
Since 1 July heating degree days 4177 3856  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Growing Degree Days 2 (Base 50)    
Moisture  
Dew Point 34 °F    
Average Humidity 60    
Maximum Humidity 85    
Minimum Humidity 34    
Precipitation  
Precipitation 0.00 in 0.10 in 0.82 in (1963)
Month to date precipitation 0.88 1.05  
Year to date precipitation 7.38 6.47  
Snow  
Snow 0.00 in 0.20 in 1.00 in (1963)
Month to date snowfall 4.9 1.5  
Since 1 July snowfall 37.9 20.4  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.67 in    
Wind  
Wind Speed 3 mph (SSW)    
Max Wind Speed 10 mph    
Max Gust Speed 14 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

Mar. 11, 2014 Rise Set
Actual Time 7:27 AM EDT 7:12 PM EDT
Civil Twilight 7:00 AM EDT 7:39 PM EDT
Nautical Twilight 6:29 AM EDT 8:10 PM EDT
Astronomical Twilight 5:58 AM EDT 8:41 PM EDT
Moon 2:49 PM EDT (3/11) 4:17 AM EDT (3/11)
Length of Visible Light 12h 38m
Length of Day
11h 45m
Waxing Gibbous, 78% of the Moon is Illuminated
Mar 11
Waxing Gibbous
Mar 16
Full
Mar 23
Last Quarter
Mar 30
New
Apr 7
First Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 45.0 °F 43.5 °F 28.0 °F 52% 29.66 in 10.0 mi South 3.5 mph - N/A   Partly Cloudy
1:52 AM 45.0 °F - 28.0 °F 52% 29.67 in 10.0 mi Calm Calm - N/A   Partly Cloudy
2:52 AM 39.0 °F - 30.0 °F 70% 29.67 in 10.0 mi Calm Calm - N/A   Clear
3:52 AM 42.1 °F - 30.9 °F 65% 29.66 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:52 AM 45.0 °F 41.2 °F 30.0 °F 56% 29.66 in 10.0 mi SSW 6.9 mph - N/A   Mostly Cloudy
5:52 AM 48.9 °F - 28.9 °F 46% 29.67 in 10.0 mi South 4.6 mph - N/A   Overcast
6:52 AM 48.0 °F - 30.0 °F 50% 29.68 in 10.0 mi Calm Calm - N/A   Overcast
7:52 AM 46.9 °F - 30.9 °F 54% 29.70 in 10.0 mi SSW 3.5 mph - N/A   Overcast
8:52 AM 52.0 °F - 33.1 °F 49% 29.72 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:52 AM 51.1 °F - 41.0 °F 68% 29.72 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:52 AM 55.9 °F - 37.0 °F 49% 29.73 in 10.0 mi SSW 5.8 mph - N/A   Overcast
11:52 AM 57.0 °F - 35.1 °F 44% 29.72 in 10.0 mi SSW 5.8 mph - N/A   Mostly Cloudy
12:52 PM 60.1 °F - 34.0 °F 38% 29.71 in 10.0 mi SSW 4.6 mph - N/A   Mostly Cloudy
1:52 PM 61.0 °F - 37.0 °F 41% 29.69 in 10.0 mi South 6.9 mph - N/A   Mostly Cloudy
2:52 PM 63.0 °F - 37.0 °F 38% 29.67 in 10.0 mi South 4.6 mph - N/A   Mostly Cloudy
3:52 PM 64.0 °F - 36.0 °F 35% 29.65 in 10.0 mi SSW 10.4 mph - N/A   Mostly Cloudy
4:52 PM 64.9 °F - 36.0 °F 34% 29.64 in 10.0 mi SSW 10.4 mph - N/A   Mostly Cloudy
5:52 PM 63.0 °F - 37.9 °F 40% 29.64 in 10.0 mi SSW 5.8 mph - N/A   Mostly Cloudy
6:52 PM 57.9 °F - 39.9 °F 51% 29.64 in 10.0 mi Calm Calm - N/A   Scattered Clouds
7:52 PM 52.0 °F - 39.0 °F 61% 29.65 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:52 PM 48.0 °F - 37.9 °F 68% 29.67 in 10.0 mi Calm Calm - N/A   Partly Cloudy
9:52 PM 45.0 °F - 37.9 °F 76% 29.66 in 10.0 mi Calm Calm - N/A   Clear
10:52 PM 42.1 °F - 37.0 °F 82% 29.66 in 10.0 mi Calm Calm - N/A   Partly Cloudy
11:52 PM 39.9 °F - 36.0 °F 86% 29.65 in 10.0 mi Calm Calm - N/A   Partly Cloudy