Weather History for Dulles Airport, VA

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Monday, March 31, 2014

  Actual Average Record
Temperature  
Mean Temperature 52 °F 49 °F  
Max Temperature 65 °F 61 °F 85 °F (1998)
Min Temperature 39 °F 38 °F 17 °F (1964)
Degree Days  
Heating Degree Days 13 16  
Month to date heating degree days 849 648  
Since 1 July heating degree days 4680 4237  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 3  
Year to date cooling degree days 0 3  
Growing Degree Days 2 (Base 50)    
Moisture  
Dew Point 28 °F    
Average Humidity 43    
Maximum Humidity 62    
Minimum Humidity 24    
Precipitation  
Precipitation 0.00 in 0.12 in 0.95 in (1976)
Month to date precipitation 4.10 3.38  
Year to date precipitation 10.60 8.80  
Snow  
Snow 0.00 in 0.00 in 1.70 in (1964)
Month to date snowfall 19.8 2.8  
Since 1 July snowfall 52.8 21.7  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.00 in    
Wind  
Wind Speed 14 mph (NNW)    
Max Wind Speed 26 mph    
Max Gust Speed 37 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Mar. 31, 2014 Rise Set
Actual Time 6:56 AM EDT 7:32 PM EDT
Civil Twilight 6:29 AM EDT 7:59 PM EDT
Nautical Twilight 5:57 AM EDT 8:31 PM EDT
Astronomical Twilight 5:25 AM EDT 9:03 PM EDT
Moon 7:18 AM EDT (3/31) 8:48 PM EDT (3/31)
Length of Visible Light 13h 30m
Length of Day
12h 36m
New Moon, 1% of the Moon is Illuminated
Mar 31
New Moon
Apr 7
First Quarter
Apr 15
Full
Apr 22
Last Quarter
Apr 29
New

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 33.6 °F 30.9 °F 65% 29.85 in 10.0 mi NW 18.4 mph 27.6 mph N/A   Scattered Clouds
1:52 AM 41.0 °F 32.8 °F 28.9 °F 62% 29.88 in 10.0 mi NW 16.1 mph 34.5 mph N/A   Partly Cloudy
2:52 AM 41.0 °F 31.6 °F 28.0 °F 60% 29.88 in 10.0 mi NW 20.7 mph 33.4 mph N/A   Clear
3:52 AM 39.9 °F 30.5 °F 27.0 °F 60% 29.89 in 10.0 mi NW 19.6 mph 33.4 mph N/A   Partly Cloudy
4:52 AM 39.9 °F 31.1 °F 27.0 °F 60% 29.92 in 10.0 mi NW 17.3 mph 31.1 mph N/A   Clear
5:52 AM 39.9 °F 32.1 °F 27.0 °F 60% 29.96 in 10.0 mi NW 13.8 mph 25.3 mph N/A   Clear
6:52 AM 39.0 °F 31.4 °F 27.0 °F 62% 29.97 in 10.0 mi NW 12.7 mph 25.3 mph N/A   Partly Cloudy
7:52 AM 41.0 °F 32.8 °F 27.0 °F 57% 30.00 in 10.0 mi NNW 16.1 mph 25.3 mph N/A   Partly Cloudy
8:52 AM 44.1 °F 36.8 °F 28.0 °F 53% 30.01 in 10.0 mi NNW 16.1 mph 29.9 mph N/A   Partly Cloudy
9:52 AM 46.9 °F - 28.0 °F 48% 30.03 in 10.0 mi NNW 20.7 mph 31.1 mph N/A   Partly Cloudy
10:52 AM 50.0 °F - 28.0 °F 43% 30.05 in 10.0 mi NNW 19.6 mph 29.9 mph N/A   Partly Cloudy
11:52 AM 54.0 °F - 30.0 °F 40% 30.06 in 10.0 mi NNW 15.0 mph 24.2 mph N/A   Scattered Clouds
12:52 PM 55.9 °F - 26.1 °F 32% 30.06 in 10.0 mi North 21.9 mph 28.8 mph N/A   Scattered Clouds
1:52 PM 59.0 °F - 28.0 °F 31% 30.05 in 10.0 mi North 15.0 mph - N/A   Scattered Clouds
2:52 PM 61.0 °F - 28.0 °F 29% 30.04 in 10.0 mi NNW 13.8 mph 27.6 mph N/A   Partly Cloudy
3:52 PM 63.0 °F - 27.0 °F 26% 30.02 in 10.0 mi NNW 17.3 mph 24.2 mph N/A   Partly Cloudy
4:52 PM 64.0 °F - 26.1 °F 24% 30.02 in 10.0 mi NNW 15.0 mph - N/A   Partly Cloudy
5:52 PM 64.0 °F - 26.1 °F 24% 30.01 in 10.0 mi NNW 16.1 mph 23.0 mph 0.01 in   Partly Cloudy
6:52 PM 62.1 °F - 26.1 °F 25% 30.03 in 10.0 mi NNW 10.4 mph - N/A   Scattered Clouds
7:52 PM 55.9 °F - 28.0 °F 34% 30.04 in 10.0 mi NW 8.1 mph - N/A   Partly Cloudy
8:52 PM 55.0 °F - 28.9 °F 37% 30.07 in 10.0 mi NW 8.1 mph - N/A   Partly Cloudy
9:52 PM 53.1 °F - 28.0 °F 38% 30.08 in 10.0 mi NNW 5.8 mph - N/A   Partly Cloudy
10:52 PM 53.1 °F - 28.0 °F 38% 30.09 in 10.0 mi North 5.8 mph - N/A   Clear
11:52 PM 44.1 °F - 30.0 °F 58% 30.10 in 10.0 mi Calm Calm - N/A   Partly Cloudy