Dulles, VA

9:31 PM EDT on September 29, 2016 (GMT -0400)
Washington Dulles International

Weather History for KIAD - November, 2012

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Tuesday, November 20, 2012

  Actual Average Record
Temperature  
Mean Temperature 45 °F 45 °F  
Max Temperature 54 °F 56 °F 79 °F (1985)
Min Temperature 35 °F 34 °F 18 °F (1980)
Degree Days  
Heating Degree Days 20 20  
Month to date heating degree days 415 338  
Since 1 July heating degree days 728 694  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1436 1176  
Moisture  
Dew Point 37 °F    
Average Humidity 80    
Maximum Humidity 93    
Minimum Humidity 66    
Precipitation  
Precipitation 0.00 in 0.11 in 0.75 in (1983)
Month to date precipitation 1.06 2.26  
Year to date precipitation 32.69 37.43  
Snow  
Snow 0.00 in 0.00 in T in (2000)
Month to date snowfall T 0.1  
Since 1 July snowfall T 0.1  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.17 in    
Wind  
Wind Speed 3 mph (NNW)    
Max Wind Speed 12 mph    
Max Gust Speed 26 mph    
Visibility 9 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

Nov. 20, 2012 Rise Set
Actual Time 6:58 AM EST 4:52 PM EST
Civil Twilight 6:29 AM EST 5:21 PM EST
Nautical Twilight 5:57 AM EST 5:53 PM EST
Astronomical Twilight 5:25 AM EST 6:25 PM EST
Moon 12:33 PM EST (11/20) No Moon Set
Length of Visible Light 10h 51m
Length of Day
9h 53m
Waxing Crescent, 51% of the Moon is Illuminated
Nov 20
Waxing Crescent
Nov 28
Full
Dec 6
Last Quarter
Dec 13
New
Dec 20
First 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 - 33.1 °F 89% 30.22 in 10.0 mi Calm Calm - N/A   Scattered Clouds
1:52 AM 36.0 °F 31.1 °F 33.1 °F 89% 30.22 in 10.0 mi NNW 5.8 mph - N/A   Partly Cloudy
2:52 AM 37.4 °F 33.8 °F 33.8 °F 87% 30.21 in 10.0 mi NNW 4.6 mph - N/A   Partly Cloudy
3:52 AM 35.1 °F 31.0 °F 32.0 °F 89% 30.21 in 10.0 mi NW 4.6 mph - N/A   Scattered Clouds
4:52 AM 36.0 °F - 32.0 °F 86% 30.21 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
5:00 AM 37.4 °F - 33.8 °F 87% 30.20 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
5:52 AM 36.0 °F 32.1 °F 33.1 °F 89% 30.21 in 9.0 mi WNW 4.6 mph - N/A   Mostly Cloudy
6:52 AM 36.0 °F 32.1 °F 33.1 °F 89% 30.20 in 8.0 mi NW 4.6 mph - N/A   Mostly Cloudy
7:32 AM 37.4 °F 34.9 °F 33.8 °F 87% 30.20 in 7.0 mi NNW 3.5 mph - N/A   Mostly Cloudy
7:52 AM 37.9 °F 35.5 °F 35.1 °F 89% 30.21 in 6.0 mi NW 3.5 mph - N/A   Mostly Cloudy
8:52 AM 44.1 °F 41.5 °F 36.0 °F 73% 30.20 in 8.0 mi NNW 4.6 mph - N/A   Mostly Cloudy
8:59 AM 42.8 °F 40.1 °F 35.6 °F 76% 30.20 in 8.0 mi NW 4.6 mph - N/A   Mostly Cloudy
9:18 AM 44.6 °F 42.2 °F 37.4 °F 76% 30.19 in 8.0 mi North 4.6 mph - N/A   Mostly Cloudy
9:52 AM 48.0 °F - 39.0 °F 71% 30.20 in 8.0 mi NW 5.8 mph - N/A   Mostly Cloudy
10:18 AM 46.4 °F 43.5 °F 37.4 °F 71% 30.19 in 8.0 mi NNW 5.8 mph - N/A   Mostly Cloudy
10:27 AM 48.2 °F - 37.4 °F 66% 30.19 in 9.0 mi NW 6.9 mph - N/A   Mostly Cloudy
10:52 AM 48.0 °F - 39.0 °F 71% 30.19 in 8.0 mi NNW 5.8 mph - N/A   Mostly Cloudy
11:52 AM 50.0 °F - 39.9 °F 68% 30.16 in 9.0 mi Calm Calm - N/A   Mostly Cloudy
12:52 PM 51.1 °F - 42.1 °F 71% 30.14 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:52 PM 53.1 °F - 42.1 °F 66% 30.12 in 10.0 mi North 4.6 mph - N/A   Mostly Cloudy
2:52 PM 52.0 °F - 42.1 °F 69% 30.11 in 10.0 mi North 3.5 mph - N/A   Overcast
3:52 PM 51.1 °F - 41.0 °F 68% 30.10 in 10.0 mi NNE 6.9 mph - N/A   Overcast
4:52 PM 50.0 °F - 41.0 °F 71% 30.11 in 10.0 mi North 5.8 mph 26.5 mph N/A   Overcast
5:52 PM 48.2 °F - 39.2 °F 71% 30.11 in 10.0 mi North 5.8 mph - N/A   Overcast
6:52 PM 46.9 °F - 39.9 °F 77% 30.14 in 10.0 mi NW 4.6 mph - N/A   Overcast
7:52 PM 43.0 °F - 39.0 °F 86% 30.14 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
8:52 PM 41.0 °F - 39.0 °F 93% 30.14 in 10.0 mi Calm Calm - N/A   Overcast
9:52 PM 41.0 °F - 37.0 °F 86% 30.15 in 10.0 mi Calm Calm - N/A   Scattered Clouds
10:52 PM 39.0 °F - 36.0 °F 89% 30.15 in 9.0 mi Calm Calm - N/A   Scattered Clouds
11:52 PM 37.0 °F - 35.1 °F 93% 30.15 in 10.0 mi Calm Calm - N/A   Partly Cloudy