Weather History for Dulles Airport, VA

Change the Weather History Date:

Thursday, February 16, 2012

  Actual Average Record
Temperature  
Mean Temperature 40 °F 36 °F  
Max Temperature 45 °F 47 °F 70 °F (1976)
Min Temperature 34 °F 26 °F 11 °F (1963)
Degree Days  
Heating Degree Days 25 29  
Month to date heating degree days 412 480  
Since 1 July heating degree days 2775 3264  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 38 °F    
Average Humidity 82    
Maximum Humidity 96    
Minimum Humidity 67    
Precipitation  
Precipitation 0.20 in 0.10 in 2.33 in (2003)
Month to date precipitation 0.69 1.58  
Year to date precipitation 2.54 4.26  
Snow  
Snow 0.00 in 0.30 in 15.90 in (2003)
Month to date snowfall 1.4 4.8  
Since 1 July snowfall 3.7 16.1  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.14 in    
Wind  
Wind Speed 4 mph (SSE)    
Max Wind Speed 12 mph    
Max Gust Speed 15 mph    
Visibility 8 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

Search for Another Location

Airport:

Trip Planner

Search our weather history database for the weather conditions in past years. The results will help you decide how hot, cold, wet, or windy it might be!

Date:

Astronomy

Feb. 16, 2012 Rise Set
Actual Time 7:00 AM EST 5:47 PM EST
Civil Twilight 6:33 AM EST 6:15 PM EST
Nautical Twilight 6:02 AM EST 6:46 PM EST
Astronomical Twilight 5:31 AM EST 7:17 PM EST
Moon 2:52 AM EST (2/16) 12:39 PM EST (2/16)
Length of Visible Light 11h 41m
Length of Day
10h 47m
Waning Crescent, 28% of the Moon is Illuminated
Feb 16
Waning Crescent
Feb 21
New
Feb 29
First Quarter
Mar 8
Full
Mar 14
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 36.0 °F - 30.0 °F 79% 30.29 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:52 AM 36.0 °F - 30.0 °F 79% 30.28 in 10.0 mi Calm Calm - N/A   Overcast
2:52 AM 36.0 °F - 30.9 °F 82% 30.27 in 10.0 mi Calm Calm - N/A   Overcast
3:52 AM 37.0 °F 34.5 °F 33.1 °F 86% 30.26 in 10.0 mi SSE 3.5 mph - 0.00 in   Overcast
4:52 AM 39.9 °F 35.8 °F 33.1 °F 77% 30.25 in 10.0 mi SSE 5.8 mph - N/A   Overcast
5:52 AM 43.0 °F 38.8 °F 32.0 °F 65% 30.25 in 10.0 mi SSW 6.9 mph - N/A   Overcast
6:52 AM 43.0 °F 38.8 °F 32.0 °F 65% 30.22 in 10.0 mi SE 6.9 mph - N/A   Overcast
7:52 AM 43.0 °F 38.8 °F 32.0 °F 65% 30.24 in 10.0 mi South 6.9 mph - N/A   Overcast
8:52 AM 44.1 °F 39.5 °F 34.0 °F 68% 30.23 in 10.0 mi SSE 8.1 mph - 0.00 in Rain Light Rain
9:52 AM 43.0 °F 41.3 °F 37.9 °F 82% 30.21 in 6.0 mi ESE 3.5 mph - 0.02 in Rain Light Rain
10:52 AM 43.0 °F 40.3 °F 37.9 °F 82% 30.20 in 9.0 mi SSE 4.6 mph - 0.02 in Rain Light Rain
11:52 AM 44.1 °F 39.0 °F 39.0 °F 82% 30.18 in 6.0 mi South 9.2 mph - 0.01 in Rain Light Rain
12:52 PM 44.1 °F 40.1 °F 41.0 °F 89% 30.14 in 8.0 mi South 6.9 mph - 0.05 in Rain Light Rain
1:52 PM 45.0 °F 41.8 °F 41.0 °F 86% 30.10 in 8.0 mi South 5.8 mph - 0.01 in Rain Light Rain
2:52 PM 45.0 °F 41.8 °F 42.1 °F 90% 30.09 in 8.0 mi South 5.8 mph - 0.06 in Rain Light Rain
3:52 PM 45.0 °F 39.7 °F 42.1 °F 90% 30.04 in 7.0 mi SE 10.4 mph - 0.03 in   Overcast
4:52 PM 45.0 °F 41.2 °F 42.1 °F 90% 30.06 in 10.0 mi South 6.9 mph - N/A   Overcast
5:52 PM 44.1 °F 40.8 °F 41.0 °F 89% 30.05 in 9.0 mi South 5.8 mph - N/A   Mostly Cloudy
6:52 PM 44.1 °F 42.5 °F 41.0 °F 89% 30.06 in 9.0 mi Variable 3.5 mph - N/A   Overcast
7:52 PM 43.0 °F 40.3 °F 39.9 °F 89% 30.05 in 7.0 mi SSE 4.6 mph - N/A   Overcast
8:52 PM 42.1 °F - 39.9 °F 92% 30.04 in 6.0 mi Calm Calm - N/A   Overcast
8:59 PM 42.8 °F - 39.2 °F 87% 30.04 in 5.0 mi Calm Calm - N/A   Overcast
9:52 PM 43.0 °F - 41.0 °F 93% 30.04 in 7.0 mi Calm Calm - N/A   Overcast
10:52 PM 42.1 °F - 41.0 °F 96% 30.03 in 5.0 mi Calm Calm - N/A   Overcast
11:05 PM 42.8 °F - 41.0 °F 93% 30.03 in 3.0 mi Calm Calm - N/A   Mostly Cloudy
11:52 PM 42.1 °F - 41.0 °F 96% 30.02 in 3.0 mi Calm Calm - N/A   Overcast