Weather History for Dulles Airport, VA

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Wednesday, October 9, 2013

  Actual Average Record
Temperature  
Mean Temperature 56 °F 58 °F  
Max Temperature 61 °F 70 °F 94 °F (2007)
Min Temperature 51 °F 46 °F 26 °F (2001)
Degree Days  
Heating Degree Days 9 8  
Month to date heating degree days 17 58  
Since 1 July heating degree days 84 116  
Cooling Degree Days 0 1  
Month to date cooling degree days 43 11  
Year to date cooling degree days 1267 1168  
Growing Degree Days 6 (Base 50)    
Moisture  
Dew Point 48 °F    
Average Humidity 75    
Maximum Humidity 89    
Minimum Humidity 60    
Precipitation  
Precipitation 0.21 in 0.11 in 2.53 in (1976)
Month to date precipitation 1.34 0.95  
Year to date precipitation 30.80 32.87  
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 30.29 in    
Wind  
Wind Speed 9 mph (NNE)    
Max Wind Speed 15 mph    
Max Gust Speed 18 mph    
Visibility 10 miles    
Events Rain    
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

Oct. 09, 2013 Rise Set
Actual Time 7:13 AM EDT 6:39 PM EDT
Civil Twilight 6:46 AM EDT 7:06 PM EDT
Nautical Twilight 6:15 AM EDT 7:37 PM EDT
Astronomical Twilight 5:44 AM EDT 8:08 PM EDT
Moon 12:04 PM EDT (10/9) 10:14 PM EDT (10/9)
Length of Visible Light 12h 19m
Length of Day
11h 26m
Waxing Crescent, 25% of the Moon is Illuminated
Oct 9
Waxing Crescent
Oct 11
First Quarter
Oct 18
Full
Oct 26
Last Quarter
Nov 3
New

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 52.0 °F 48.0 °F 86% 30.30 in 10.0 mi Calm Calm - N/A   Scattered Clouds
1:52 AM 54.0 °F 46.9 °F 77% 30.29 in 10.0 mi North 3.5 mph - N/A   Mostly Cloudy
2:52 AM 54.0 °F 46.9 °F 77% 30.28 in 10.0 mi North 4.6 mph - N/A   Overcast
3:52 AM 53.1 °F 46.0 °F 77% 30.29 in 10.0 mi North 4.6 mph - N/A   Overcast
4:52 AM 54.0 °F 45.0 °F 72% 30.30 in 10.0 mi North 4.6 mph - N/A   Overcast
5:52 AM 53.1 °F 46.0 °F 77% 30.28 in 10.0 mi North 6.9 mph - N/A   Mostly Cloudy
6:52 AM 52.0 °F 45.0 °F 77% 30.30 in 10.0 mi North 5.8 mph - N/A   Mostly Cloudy
7:52 AM 52.0 °F 45.0 °F 77% 30.31 in 10.0 mi North 9.2 mph - N/A   Mostly Cloudy
8:52 AM 53.1 °F 45.0 °F 74% 30.32 in 10.0 mi North 10.4 mph - N/A   Mostly Cloudy
9:52 AM 55.0 °F 46.0 °F 72% 30.32 in 10.0 mi North 9.2 mph - N/A   Mostly Cloudy
10:52 AM 57.9 °F 48.0 °F 70% 30.34 in 10.0 mi North 8.1 mph - N/A   Mostly Cloudy
11:52 AM 60.1 °F 46.9 °F 62% 30.33 in 10.0 mi NE 8.1 mph - N/A   Mostly Cloudy
12:52 PM 61.0 °F 46.0 °F 58% 30.31 in 10.0 mi NNE 12.7 mph - N/A   Overcast
1:52 PM 61.0 °F 46.9 °F 60% 30.30 in 10.0 mi North 11.5 mph - N/A   Overcast
2:52 PM 61.0 °F 48.0 °F 62% 30.30 in 10.0 mi NE 9.2 mph - N/A   Overcast
3:52 PM 61.0 °F 48.0 °F 62% 30.28 in 10.0 mi NE 12.7 mph - N/A   Overcast
4:52 PM 60.1 °F 48.0 °F 64% 30.27 in 10.0 mi NNE 9.2 mph - 0.00 in Rain Light Rain
5:52 PM 57.9 °F 50.0 °F 75% 30.26 in 10.0 mi NNE 11.5 mph - 0.00 in Rain Light Rain
6:52 PM 55.9 °F 50.0 °F 80% 30.27 in 10.0 mi NNE 9.2 mph - 0.04 in Rain Light Rain
7:52 PM 55.9 °F 51.1 °F 84% 30.27 in 10.0 mi North 8.1 mph - 0.03 in Rain Light Rain
8:52 PM 55.9 °F 51.1 °F 84% 30.26 in 10.0 mi North 9.2 mph - 0.04 in Rain Light Rain
9:52 PM 55.0 °F 50.0 °F 83% 30.26 in 10.0 mi North 8.1 mph - 0.02 in Rain Light Rain
10:52 PM 54.0 °F 50.0 °F 86% 30.25 in 10.0 mi North 11.5 mph - 0.00 in Rain Light Rain
11:52 PM 54.0 °F 48.9 °F 83% 30.23 in 7.0 mi North 11.5 mph - 0.01 in Rain Light Rain