Weather History for Dulles Airport, VA

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Thursday, November 1, 2012

  Actual Average Record
Temperature  
Mean Temperature 45 °F 51 °F  
Max Temperature 51 °F 63 °F 84 °F (1982)
Min Temperature 38 °F 39 °F 25 °F (1975)
Degree Days  
Heating Degree Days 20 14  
Month to date heating degree days 20 14  
Since 1 July heating degree days 333 370  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1436 1176  
Moisture  
Dew Point 35 °F    
Average Humidity 70    
Maximum Humidity 85    
Minimum Humidity 54    
Precipitation  
Precipitation T in 0.12 in 1.07 in (1963)
Month to date precipitation T 0.12  
Year to date precipitation 31.63 35.29  
Snow  
Snow 0.00 in 0.00 in - ()
Month to date snowfall 0.0 0.0  
Since 1 July snowfall 0.0 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.70 in    
Wind  
Wind Speed 5 mph (West)    
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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Daily Weather History Graph

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Astronomy

Nov. 01, 2012 Rise Set
Actual Time 7:37 AM EDT 6:08 PM EDT
Civil Twilight 7:09 AM EDT 6:36 PM EDT
Nautical Twilight 6:38 AM EDT 7:07 PM EDT
Astronomical Twilight 6:07 AM EDT 7:38 PM EDT
Moon 8:05 PM EDT (11/1) 10:07 AM EDT (11/1)
Length of Visible Light 11h 26m
Length of Day
10h 31m
Waning Gibbous, 93% of the Moon is Illuminated
Nov 1
Waning Gibbous
Nov 6
Last Quarter
Nov 13
New
Nov 20
First Quarter
Nov 28
Full

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 42.1 °F - 34.0 °F 73% 29.67 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:52 AM 41.0 °F 38.0 °F 33.1 °F 73% 29.67 in 10.0 mi SW 4.6 mph - N/A   Partly Cloudy
2:52 AM 39.0 °F 36.8 °F 34.0 °F 82% 29.67 in 10.0 mi South 3.5 mph - N/A   Mostly Cloudy
3:52 AM 39.9 °F 37.8 °F 35.1 °F 83% 29.67 in 10.0 mi SSW 3.5 mph - N/A   Mostly Cloudy
4:52 AM 41.0 °F - 35.1 °F 79% 29.66 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
5:52 AM 42.1 °F - 35.1 °F 76% 29.67 in 10.0 mi Calm Calm - N/A   Overcast
6:52 AM 41.0 °F 39.0 °F 35.1 °F 79% 29.68 in 10.0 mi WSW 3.5 mph - N/A   Mostly Cloudy
7:52 AM 41.0 °F - 35.1 °F 79% 29.69 in 10.0 mi Calm Calm - N/A   Overcast
8:52 AM 43.0 °F - 37.9 °F 82% 29.70 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:52 AM 46.0 °F - 37.0 °F 71% 29.71 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:52 AM 48.0 °F - 35.1 °F 61% 29.72 in 10.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
11:52 AM 48.9 °F - 34.0 °F 56% 29.72 in 10.0 mi West 10.4 mph - N/A   Overcast
12:52 PM 48.9 °F - 34.0 °F 56% 29.71 in 10.0 mi WNW 9.2 mph - N/A   Overcast
1:52 PM 48.9 °F - 35.1 °F 59% 29.70 in 10.0 mi WNW 10.4 mph - N/A   Overcast
2:52 PM 50.0 °F - 36.0 °F 59% 29.68 in 10.0 mi West 4.6 mph - N/A   Overcast
3:52 PM 51.1 °F - 35.1 °F 54% 29.69 in 10.0 mi NW 8.1 mph - N/A   Overcast
4:52 PM 48.9 °F - 36.0 °F 61% 29.70 in 10.0 mi WNW 12.7 mph - 0.00 in   Overcast
5:52 PM 48.9 °F - 36.0 °F 61% 29.71 in 10.0 mi NW 8.1 mph - N/A   Mostly Cloudy
6:52 PM 48.0 °F - 35.1 °F 61% 29.73 in 10.0 mi NW 8.1 mph - 0.00 in   Mostly Cloudy
7:52 PM 46.9 °F - 35.1 °F 63% 29.74 in 10.0 mi WNW 3.5 mph - N/A   Mostly Cloudy
8:52 PM 46.9 °F - 34.0 °F 61% 29.74 in 10.0 mi West 8.1 mph - N/A   Mostly Cloudy
9:52 PM 46.0 °F 44.8 °F 33.1 °F 61% 29.75 in 10.0 mi West 3.5 mph - N/A   Mostly Cloudy
10:52 PM 44.1 °F 42.5 °F 32.0 °F 63% 29.76 in 10.0 mi West 3.5 mph - N/A   Scattered Clouds
11:52 PM 44.1 °F 38.6 °F 33.1 °F 65% 29.76 in 10.0 mi WNW 10.4 mph 17.3 mph N/A   Partly Cloudy