Weather History for Dulles Airport, VA

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Monday, March 17, 2014

  Actual Average Record
Temperature  
Mean Temperature 27 °F 44 °F  
Max Temperature 30 °F 56 °F 77 °F (1963)
Min Temperature 23 °F 33 °F 16 °F (1970)
Degree Days  
Heating Degree Days 38 21  
Month to date heating degree days 506 395  
Since 1 July heating degree days 4337 3985  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 21 °F    
Average Humidity 83    
Maximum Humidity 96    
Minimum Humidity 69    
Precipitation  
Precipitation 0.32 in 0.11 in 1.14 in (1993)
Month to date precipitation 1.63 1.70  
Year to date precipitation 8.13 7.12  
Snow  
Snow 4.50 in 0.10 in 1.90 in (1965)
Month to date snowfall 16.0 2.0  
Since 1 July snowfall 49.0 20.9  
Snow Depth 8.00 in    
Sea Level Pressure  
Sea Level Pressure 30.05 in    
Wind  
Wind Speed 8 mph (NNE)    
Max Wind Speed 15 mph    
Max Gust Speed 20 mph    
Visibility 5 miles    
Events Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Mar. 17, 2014 Rise Set
Actual Time 7:17 AM EDT 7:18 PM EDT
Civil Twilight 6:51 AM EDT 7:45 PM EDT
Nautical Twilight 6:20 AM EDT 8:16 PM EDT
Astronomical Twilight 5:49 AM EDT 8:47 PM EDT
Moon 8:32 PM EDT (3/17) 7:33 AM EDT (3/17)
Length of Visible Light 12h 53m
Length of Day
12h 00m
Full, 99% of the Moon is Illuminated
Mar 17
Full
Mar 23
Last Quarter
Mar 30
New
Apr 7
First Quarter
Apr 15
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 26.1 °F 15.6 °F 25.0 °F 96% 30.06 in 0.5 mi North 11.5 mph - 0.08 in Snow Light Snow
1:28 AM 26.6 °F 17.5 °F 24.8 °F 93% 30.04 in 0.5 mi North 9.2 mph - 0.03 in Snow Light Snow
1:52 AM 26.1 °F 16.8 °F 24.1 °F 92% 30.05 in 0.5 mi North 9.2 mph - 0.06 in Snow Light Snow
2:52 AM 25.0 °F 14.2 °F 23.0 °F 92% 30.05 in 0.5 mi NNE 11.5 mph 17.3 mph 0.08 in Snow Light Snow
3:52 AM 24.1 °F 13.7 °F 21.9 °F 91% 30.05 in 0.5 mi NNE 10.4 mph - 0.15 in Snow Light Snow
4:52 AM 23.0 °F 13.9 °F 21.0 °F 92% 30.04 in 0.5 mi North 8.1 mph - 0.03 in Snow Light Snow
5:24 AM 23.0 °F 12.4 °F 21.2 °F 93% 30.03 in 3.0 mi NNE 10.4 mph - 0.01 in Snow Light Snow
5:52 AM 23.0 °F 12.4 °F 21.0 °F 92% 30.01 in 3.0 mi NNE 10.4 mph - 0.01 in Snow Light Snow
6:37 AM 23.0 °F 13.1 °F 19.4 °F 86% 30.02 in 3.0 mi North 9.2 mph - 0.00 in Snow Light Snow
6:52 AM 23.0 °F 13.1 °F 19.9 °F 88% 30.02 in 3.0 mi North 9.2 mph - 0.00 in   Overcast
7:52 AM 23.0 °F 11.7 °F 19.0 °F 85% 30.04 in 3.0 mi North 11.5 mph - N/A   Overcast
8:52 AM 23.0 °F 10.6 °F 18.0 °F 81% 30.05 in 6.0 mi North 13.8 mph - N/A   Overcast
9:12 AM 23.0 °F 11.1 °F 17.6 °F 80% 30.03 in 2.0 mi NNE 12.7 mph - 0.00 in Snow Light Snow
9:20 AM 23.0 °F 11.1 °F 17.6 °F 80% 30.05 in 1.5 mi North 12.7 mph - 0.00 in Snow Light Snow
9:29 AM 23.0 °F 13.1 °F 19.4 °F 86% 30.05 in 1.5 mi North 9.2 mph - 0.00 in Snow Light Snow
9:43 AM 23.0 °F 11.7 °F 19.4 °F 86% 30.05 in 1.2 mi North 11.5 mph - 0.00 in Snow Light Snow
9:52 AM 23.0 °F 12.4 °F 19.0 °F 85% 30.07 in 1.2 mi North 10.4 mph - 0.00 in Snow Light Snow
9:59 AM 23.0 °F 11.1 °F 19.4 °F 86% 30.05 in 1.8 mi North 12.7 mph - 0.00 in Snow Light Snow
10:07 AM 23.0 °F 12.4 °F 19.4 °F 86% 30.06 in 2.0 mi North 10.4 mph - 0.00 in Snow Light Snow
10:28 AM 23.0 °F 12.4 °F 19.4 °F 86% 30.05 in 1.8 mi NNE 10.4 mph - 0.00 in Snow Light Snow
10:38 AM 24.8 °F 15.3 °F 19.4 °F 80% 30.04 in 2.5 mi North 9.2 mph - 0.00 in Snow Light Snow
10:52 AM 24.1 °F 17.0 °F 19.9 °F 84% 30.06 in 2.5 mi NNE 5.8 mph - 0.00 in Snow Light Snow
11:03 AM 24.8 °F 14.6 °F 19.4 °F 80% 30.06 in 2.5 mi North 10.4 mph - 0.00 in Snow Light Snow
11:23 AM 24.8 °F 16.1 °F 19.4 °F 80% 30.06 in 3.0 mi North 8.1 mph - 0.00 in Snow Light Snow
11:30 AM 24.8 °F 14.0 °F 19.4 °F 80% 30.06 in 3.0 mi North 11.5 mph - 0.00 in Snow Light Snow
11:52 AM 25.0 °F 14.8 °F 21.0 °F 85% 30.08 in 1.2 mi North 10.4 mph - 0.00 in Snow Light Snow
12:02 PM 24.8 °F 13.4 °F 19.4 °F 80% 30.05 in 1.2 mi North 12.7 mph - 0.00 in Snow Light Snow
12:26 PM 24.8 °F 13.4 °F 19.4 °F 80% 30.05 in 1.8 mi North 12.7 mph - 0.00 in Snow Light Snow
12:38 PM 26.6 °F 15.2 °F 19.4 °F 74% 30.06 in 3.0 mi North 13.8 mph - 0.00 in   Haze
12:52 PM 26.1 °F 15.0 °F 19.9 °F 78% 30.07 in 6.0 mi North 12.7 mph - 0.00 in   Haze
1:01 PM 26.6 °F 16.2 °F 19.4 °F 74% 30.05 in 4.0 mi North 11.5 mph - N/A   Haze
1:21 PM 26.6 °F 15.7 °F 19.4 °F 74% 30.04 in 6.0 mi NNE 12.7 mph - N/A   Haze
1:52 PM 27.0 °F 18.0 °F 19.0 °F 72% 30.04 in 7.0 mi North 9.2 mph - N/A   Overcast
2:52 PM 28.0 °F 20.0 °F 19.0 °F 69% 30.04 in 7.0 mi North 8.1 mph - N/A   Overcast
3:20 PM 28.4 °F 20.4 °F 19.4 °F 69% 30.03 in 7.0 mi NE 8.1 mph - N/A   Overcast
3:46 PM 28.4 °F 23.3 °F 19.4 °F 69% 30.03 in 10.0 mi North 4.6 mph - N/A   Overcast
3:52 PM 28.9 °F 21.1 °F 19.0 °F 67% 30.04 in 10.0 mi NNE 8.1 mph - N/A   Overcast
4:41 PM 28.4 °F 21.2 °F 19.4 °F 69% 30.02 in 10.0 mi North 6.9 mph - N/A   Overcast
4:52 PM 28.9 °F 23.9 °F 19.9 °F 69% 30.04 in 10.0 mi North 4.6 mph - N/A   Overcast
5:52 PM 30.0 °F 25.2 °F 21.0 °F 69% 30.04 in 10.0 mi NNE 4.6 mph - N/A   Overcast
6:52 PM 28.9 °F 22.8 °F 23.0 °F 78% 30.05 in 10.0 mi East 5.8 mph - N/A   Overcast
7:39 PM 28.4 °F 24.6 °F 23.0 °F 80% 30.04 in 10.0 mi East 3.5 mph - N/A   Overcast
7:52 PM 28.9 °F 25.2 °F 23.0 °F 78% 30.05 in 10.0 mi East 3.5 mph - N/A   Overcast
8:34 PM 28.4 °F 23.3 °F 23.0 °F 80% 30.07 in 10.0 mi East 4.6 mph - N/A   Overcast
8:52 PM 28.9 °F 22.8 °F 21.9 °F 75% 30.09 in 10.0 mi ENE 5.8 mph - N/A   Overcast
9:46 PM 28.4 °F 24.6 °F 21.2 °F 74% 30.09 in 9.0 mi East 3.5 mph - 0.00 in Snow Light Snow
9:52 PM 28.0 °F 24.2 °F 23.0 °F 81% 30.10 in 8.0 mi East 3.5 mph - 0.00 in Snow Light Snow
10:52 PM 28.0 °F 24.2 °F 23.0 °F 81% 30.10 in 10.0 mi Variable 3.5 mph - 0.00 in   Mostly Cloudy
11:52 PM 28.0 °F - 23.0 °F 81% 30.11 in 10.0 mi Calm Calm - N/A   Overcast