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Dulles Airport, VA
on Monday, December 1, 2008

Monday
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Daily Summary
 ActualAverageRecord
Temperature
Mean Temperature - 40 °F  
Max Temperature 51 °F 51 °F 75 °F (2006)
Min Temperature 35 °F 30 °F 4 °F (1967)
Degree Days
Heating Degree Days 22 24  
Month to date heating degree days 22 24  
Since 1 July heating degree days 975 1001  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1171 1075  
Moisture
Dew Point 39 °F   
Average Humidity 81    
Maximum Humidity 100    
Minimum Humidity 61    
Precipitation
Precipitation 0.03 in 0.10 in 2.02 in (1974)
Month to date precipitation 0.03 0.10  
Year to date precipitation 41.41 38.83  
Snow
Snow 0.00 in - T in (0.0)
Month to date snowfall 0.0 T  
Since 1 July snowfall 0.0 0.9  
Snow Depth 0.00 in   
Wind
Wind Speed 11 mph   
Max Wind Speed 24 mph   
Max Gust Speed 32 mph   
Visibility 8 miles   
Events Rain   
Key: T is trace of precipitation, MM is missing value
Source: NWS Daily Summary
Time(EST)TemperatureDew PointHumidity Pressure Visibility Wind DirectionWind SpeedGust SpeedPrecipitationEvents Conditions
12:31 AM 39.2 °F 39.2 °F 100% 29.34 in 4.0 miles Calm Calm - N/A   Overcast
12:52 AM 39.9 °F 39.0 °F 97% 29.37 in 4.0 miles Calm Calm - N/A   Overcast
1:40 AM 39.2 °F 39.2 °F 100% 29.39 in 9.0 miles South 3.5 mph - N/A   Overcast
1:52 AM 41.0 °F 39.9 °F 96% 29.40 in 10.0 miles South 3.5 mph - N/A   Overcast
2:03 AM 41.0 °F 39.2 °F 93% 29.41 in 9.0 miles SSW 3.5 mph - N/A   Overcast
2:45 AM 41.0 °F 39.2 °F 93% 29.43 in 7.0 miles SSW 9.2 mph - N/A   Overcast
2:52 AM 41.0 °F 39.9 °F 96% 29.44 in 4.0 miles SSW 8.1 mph - N/A   Overcast
3:52 AM 41.0 °F 39.9 °F 96% 29.46 in 4.0 miles South 8.1 mph - N/A   Overcast
4:10 AM 42.8 °F 39.2 °F 87% 29.46 in 10.0 miles SSW 11.5 mph - N/A   Overcast
4:52 AM 42.1 °F 39.9 °F 92% 29.47 in 7.0 miles South 10.4 mph - N/A   Overcast
5:52 AM 42.1 °F 39.0 °F 89% 29.51 in 10.0 miles SSW 11.5 mph 23.0 mph N/A   Overcast
6:52 AM 41.0 °F 39.0 °F 93% 29.53 in 10.0 miles South 11.5 mph - N/A   Overcast
7:25 AM 41.0 °F 39.2 °F 93% 29.54 in 10.0 miles South 12.7 mph 19.6 mph N/A   Overcast
7:47 AM 42.8 °F 37.4 °F 81% 29.54 in 10.0 miles South 13.8 mph 25.3 mph N/A   Overcast
7:52 AM 42.1 °F 37.9 °F 85% 29.54 in 10.0 miles South 15.0 mph 23.0 mph N/A   Overcast
8:52 AM 42.1 °F 37.9 °F 85% 29.55 in 10.0 miles South 11.5 mph - N/A   Overcast
9:29 AM 44.6 °F 39.2 °F 81% 29.55 in 10.0 miles South 16.1 mph - N/A   Overcast
9:52 AM 45.0 °F 39.0 °F 80% 29.56 in 10.0 miles South 11.5 mph 20.7 mph N/A   Overcast
10:01 AM 44.6 °F 39.2 °F 81% 29.55 in 10.0 miles SSW 12.7 mph 23.0 mph N/A   Mostly Cloudy
10:21 AM 46.4 °F 39.2 °F 76% 29.56 in 10.0 miles SSW 13.8 mph 19.6 mph N/A   Mostly Cloudy
10:52 AM 46.0 °F 37.9 °F 73% 29.56 in 10.0 miles SSW 15.0 mph 21.9 mph N/A   Mostly Cloudy
11:52 AM 48.0 °F 37.9 °F 68% 29.54 in 10.0 miles South 19.6 mph 27.6 mph N/A   Scattered Clouds
12:02 PM 46.4 °F 37.4 °F 71% 29.55 in 10.0 miles South 19.6 mph 26.5 mph N/A   Mostly Cloudy
12:27 PM 48.2 °F 37.4 °F 66% 29.55 in 10.0 miles SSW 16.1 mph 27.6 mph N/A   Mostly Cloudy
12:52 PM 48.9 °F 37.0 °F 64% 29.56 in 10.0 miles SSW 18.4 mph 29.9 mph N/A   Mostly Cloudy
1:52 PM 50.0 °F 37.0 °F 61% 29.57 in 10.0 miles SSW 18.4 mph 27.6 mph N/A   Mostly Cloudy
2:29 PM 48.2 °F 35.6 °F 62% 29.58 in 10.0 miles SW 9.2 mph - N/A   Mostly Cloudy
2:42 PM 48.2 °F 35.6 °F 62% 29.60 in 10.0 miles WSW 10.4 mph 23.0 mph 0.00 in Rain Light Rain
2:52 PM 45.0 °F 36.0 °F 71% 29.61 in 7.0 miles WSW 20.7 mph 29.9 mph 0.01 in Rain Light Rain
3:04 PM 42.8 °F 35.6 °F 76% 29.61 in 7.0 miles WSW 12.7 mph 27.6 mph 0.01 in Rain Light Rain
3:40 PM 44.6 °F 39.2 °F 81% 29.63 in 7.0 miles SSW 5.8 mph - 0.02 in   Mostly Cloudy
3:44 PM 44.6 °F 39.2 °F 81% 29.63 in 7.0 miles SSW 8.1 mph - 0.02 in   Mostly Cloudy
3:52 PM 46.0 °F 39.0 °F 76% 29.64 in 7.0 miles SW 6.9 mph - 0.02 in   Mostly Cloudy
4:52 PM 44.1 °F 36.0 °F 73% 29.68 in 10.0 miles South 9.2 mph - N/A   Mostly Cloudy
5:52 PM 43.0 °F 36.0 °F 76% 29.72 in 10.0 miles SSW 10.4 mph - N/A   Scattered Clouds
6:52 PM 41.0 °F 34.0 °F 76% 29.77 in 10.0 miles SW 6.9 mph - N/A   Partly Cloudy
7:52 PM 39.9 °F 32.0 °F 73% 29.81 in 10.0 miles South 8.1 mph - N/A   Mostly Cloudy
8:52 PM 39.0 °F 30.9 °F 73% 29.83 in 10.0 miles SSW 9.2 mph - N/A   Partly Cloudy
9:52 PM 37.0 °F 28.9 °F 73% 29.87 in 10.0 miles South 8.1 mph - N/A   Partly Cloudy
10:52 PM 36.0 °F 28.0 °F 73% 29.89 in 10.0 miles South 10.4 mph - N/A   Clear
11:52 PM 35.1 °F 28.9 °F 78% 29.92 in 10.0 miles South 8.1 mph - N/A   Clear

Astronomy

Sunrise: 07:10 AM (EST) Moon Rise: 10:25 AM (EST) 12 / 1
Sunset: 04:47 PM (EST) Moon Set: 08:06 PM (EST) 12 / 1
Moon Phase
Dec. 01 Dec. 05 Dec. 12 Dec. 19 Dec. 27

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