Dulles, VA

6:26 AM EDT on October 01, 2016 (GMT -0400)
Washington Dulles International

Weather History for KIAD - February, 2013

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Saturday, February 9, 2013

  Actual Average Record
Temperature  
Mean Temperature 34 °F 35 °F  
Max Temperature 42 °F 45 °F 69 °F (2001)
Min Temperature 26 °F 25 °F -5 °F (1967)
Degree Days  
Heating Degree Days 31 30  
Month to date heating degree days 305 275  
Since 1 July heating degree days 2841 3059  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 16 °F    
Average Humidity 45    
Maximum Humidity 58    
Minimum Humidity 32    
Precipitation  
Precipitation T in 0.10 in 1.07 in (1970)
Month to date precipitation 0.21 0.89  
Year to date precipitation 3.91 3.57  
Snow  
Snow T in 0.30 in 2.20 in (2010)
Month to date snowfall 0.9 2.8  
Since 1 July snowfall 4.9 14.1  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.21 in    
Wind  
Wind Speed 16 mph (NNW)    
Max Wind Speed 41 mph    
Max Gust Speed 55 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

Feb. 09, 2013 Rise Set
Actual Time 7:07 AM EST 5:40 PM EST
Civil Twilight 6:40 AM EST 6:08 PM EST
Nautical Twilight 6:08 AM EST 6:39 PM EST
Astronomical Twilight 5:37 AM EST 7:10 PM EST
Moon 6:18 AM EST (2/9) 5:20 PM EST (2/9)
Length of Visible Light 11h 28m
Length of Day
10h 32m
Waning Crescent, 0% of the Moon is Illuminated
Feb 9
Waning Crescent
Feb 10
New
Feb 17
First Quarter
Feb 25
Full
Mar 4
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 34.0 °F 22.4 °F 19.9 °F 56% 29.96 in 10.0 mi NW 20.7 mph 34.5 mph N/A   Overcast
1:52 AM 33.1 °F 19.3 °F 19.9 °F 59% 29.97 in 10.0 mi NW 28.8 mph 43.7 mph N/A   Overcast
2:52 AM 33.1 °F 19.8 °F 19.9 °F 59% 30.02 in 10.0 mi WNW 26.5 mph 35.7 mph N/A   Overcast
3:52 AM 33.1 °F 21.5 °F 19.0 °F 56% 30.05 in 10.0 mi NW 19.6 mph 27.6 mph N/A   Overcast
4:52 AM 33.1 °F 21.2 °F 19.0 °F 56% 30.08 in 10.0 mi NNW 20.7 mph 29.9 mph N/A   Overcast
5:52 AM 32.0 °F 19.2 °F 17.1 °F 54% 30.09 in 10.0 mi NNW 23.0 mph 32.2 mph N/A   Scattered Clouds
6:52 AM 30.0 °F 17.9 °F 17.1 °F 59% 30.13 in 10.0 mi NNW 18.4 mph 25.3 mph N/A   Partly Cloudy
7:52 AM 30.0 °F 17.5 °F 16.0 °F 56% 30.16 in 10.0 mi NNW 19.6 mph 28.8 mph N/A   Partly Cloudy
8:52 AM 30.9 °F 18.7 °F 16.0 °F 54% 30.20 in 10.0 mi NW 19.6 mph 34.5 mph N/A   Partly Cloudy
9:52 AM 33.1 °F 20.3 °F 17.1 °F 52% 30.20 in 10.0 mi NW 24.2 mph 34.5 mph N/A   Partly Cloudy
10:52 AM 35.1 °F 23.5 °F 17.1 °F 48% 30.24 in 10.0 mi NNW 21.9 mph 29.9 mph N/A   Partly Cloudy
11:52 AM 37.0 °F 26.4 °F 18.0 °F 46% 30.26 in 10.0 mi NW 20.7 mph 31.1 mph N/A   Partly Cloudy
12:52 PM 39.0 °F 29.3 °F 17.1 °F 41% 30.25 in 10.0 mi NW 19.6 mph 27.6 mph N/A   Clear
1:52 PM 39.9 °F 29.7 °F 17.1 °F 40% 30.24 in 10.0 mi NW 23.0 mph 29.9 mph N/A   Clear
2:52 PM 41.0 °F 32.5 °F 17.1 °F 38% 30.27 in 10.0 mi NW 17.3 mph 23.0 mph N/A   Clear
3:52 PM 41.0 °F 33.5 °F 14.0 °F 33% 30.27 in 10.0 mi NNW 13.8 mph 20.7 mph N/A   Clear
4:52 PM 39.9 °F 32.9 °F 12.9 °F 33% 30.30 in 10.0 mi North 11.5 mph - N/A   Clear
5:52 PM 37.0 °F 31.0 °F 12.0 °F 36% 30.32 in 10.0 mi NNW 8.1 mph - N/A   Partly Cloudy
6:52 PM 34.0 °F 28.0 °F 12.9 °F 42% 30.34 in 10.0 mi NNW 6.9 mph - N/A   Clear
7:52 PM 33.1 °F 28.7 °F 12.9 °F 43% 30.36 in 10.0 mi NNW 4.6 mph - N/A   Clear
8:52 PM 33.1 °F 27.7 °F 12.9 °F 43% 30.37 in 10.0 mi NNW 5.8 mph - N/A   Clear
9:52 PM 30.9 °F 24.3 °F 14.0 °F 50% 30.38 in 10.0 mi North 6.9 mph - N/A   Clear
10:52 PM 27.0 °F - 14.0 °F 58% 30.39 in 10.0 mi Calm Calm - N/A   Clear
11:52 PM 30.9 °F 23.5 °F 14.0 °F 50% 30.40 in 10.0 mi North 8.1 mph - N/A   Clear