Dulles Airport, VA

12:36 PM EST on January 19, 2018 (GMT -0500)
Washington Dulles International

Weather History for KIAD - October, 2011

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Saturday, October 29, 2011

  Actual Average Record
Temperature  
Mean Temperature 36 °F 52 °F  
Max Temperature 39 °F 64 °F 82 °F (1984)
Min Temperature 33 °F 40 °F 19 °F (1976)
Degree Days  
Heating Degree Days 29 13  
Month to date heating degree days 256 270  
Since 1 July heating degree days 289 328  
Cooling Degree Days 0 0  
Month to date cooling degree days 2 16  
Year to date cooling degree days 1497 1173  
Moisture  
Dew Point 34 °F    
Average Humidity 89    
Maximum Humidity 96    
Minimum Humidity 82    
Precipitation  
Precipitation 1.03 in 0.11 in 4.26 in (2012)
Month to date precipitation 6.27 3.03  
Year to date precipitation 39.56 34.95  
Snow  
Snow 0.60 in 0.00 in 0.60 in (2011)
Month to date snowfall 0.6 0.0  
Since 1 July snowfall 0.6 0.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.02 in    
Wind  
Wind Speed 11 mph (NNW)    
Max Wind Speed 18 mph    
Max Gust Speed 25 mph    
Visibility 4 miles    
Events Rain , Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Oct. 29, 2011 Rise Set
Actual Time 7:33 AM EDT 6:13 PM EDT
Civil Twilight 7:06 AM EDT 6:40 PM EDT
Nautical Twilight 6:34 AM EDT 7:11 PM EDT
Astronomical Twilight 6:03 AM EDT 7:42 PM EDT
Moon 10:51 AM EDT (10/29) 8:36 PM EDT (10/29)
Length of Visible Light 11h 34m
Length of Day
10h 39m
Waxing Crescent, 11% of the Moon is Illuminated
Oct 29
Waxing Crescent
Nov 2
First Quarter
Nov 10
Full
Nov 18
Last Quarter
Nov 25
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 39.0 °F 33.4 °F 36.0 °F 89% 30.16 in 10.0 mi NE 8.1 mph - 0.02 in Rain Light Rain
1:52 AM 39.2 °F 33.6 °F 37.4 °F 93% 30.15 in 7.0 mi NE 8.1 mph - N/A Rain Light Rain
1:58 AM 39.2 °F 34.2 °F 37.4 °F 93% 30.15 in 6.0 mi NNE 6.9 mph - 0.01 in Rain Light Rain
2:15 AM 39.2 °F 31.6 °F 35.6 °F 87% 30.14 in 7.0 mi NE 12.7 mph - N/A Rain Light Rain
2:52 AM 39.0 °F 32.8 °F 36.0 °F 89% 30.12 in 8.0 mi NNE 9.2 mph - 0.03 in Rain Light Rain
3:52 AM 37.9 °F 30.5 °F 36.0 °F 93% 30.09 in 5.0 mi NNE 11.5 mph - 0.03 in Snow Light Snow
3:59 AM 37.4 °F 29.8 °F 35.6 °F 93% 30.08 in 6.0 mi NNE 11.5 mph - 0.01 in Rain Light Rain
4:52 AM 37.0 °F 29.3 °F 35.1 °F 93% 30.08 in 7.0 mi NNE 11.5 mph - 0.07 in Rain Rain
5:52 AM 35.6 °F 27.1 °F 33.8 °F 93% 30.04 in 7.0 mi NNE 12.7 mph - N/A Rain Light Rain
6:52 AM 35.1 °F 28.6 °F 33.1 °F 92% 30.03 in 5.0 mi North 8.1 mph - 0.09 in Rain Light Rain
7:01 AM 35.6 °F 28.6 °F 33.8 °F 93% 30.02 in 4.0 mi North 9.2 mph - 0.01 in Rain Light Rain
7:18 AM 33.8 °F 27.0 °F 33.8 °F 100% 30.01 in 3.0 mi North 8.1 mph - 0.03 in Rain Light Rain
7:38 AM 33.8 °F 27.0 °F 32.0 °F 93% 30.00 in 3.0 mi North 8.1 mph - 0.06 in Rain Light Rain
7:52 AM 34.0 °F 28.0 °F 33.1 °F 96% 29.99 in 3.0 mi North 6.9 mph - 0.07 in Rain Light Rain
8:32 AM 33.8 °F 25.8 °F 33.8 °F 100% 30.00 in 3.0 mi North 10.4 mph - 0.05 in Rain Light Rain
8:52 AM 35.1 °F 26.4 °F 33.1 °F 92% 29.99 in 3.0 mi North 12.7 mph - 0.06 in Rain Light Rain
9:08 AM 35.6 °F 28.0 °F 33.8 °F 93% 29.98 in 3.0 mi North 10.4 mph - 0.02 in Rain , Snow Light Rain
9:21 AM 35.6 °F 27.5 °F 33.8 °F 93% 29.99 in 3.0 mi North 11.5 mph - 0.04 in Rain , Snow Light Rain
9:47 AM 33.8 °F 25.3 °F 33.8 °F 100% 29.98 in 2.0 mi North 11.5 mph - 0.06 in Rain , Snow Light Rain
9:52 AM 35.1 °F 27.4 °F 33.1 °F 92% 29.99 in 2.0 mi North 10.4 mph - 0.07 in Rain , Snow Light Rain
10:07 AM 33.8 °F 25.8 °F 33.8 °F 100% 29.98 in 2.0 mi North 10.4 mph - 0.05 in Rain Rain
10:52 AM 35.1 °F 27.4 °F 33.1 °F 92% 29.96 in 2.0 mi NNW 10.4 mph - 0.15 in Rain Light Rain
11:17 AM 35.6 °F 27.1 °F 33.8 °F 93% 29.96 in 4.0 mi NNW 12.7 mph - 0.01 in Rain Light Rain
11:31 AM 35.6 °F 26.2 °F 33.8 °F 93% 29.94 in 4.0 mi North 15.0 mph - 0.01 in Rain Light Rain
11:52 AM 35.1 °F 25.5 °F 33.1 °F 92% 29.96 in 4.0 mi NW 15.0 mph - 0.02 in Rain Light Rain
12:06 PM 35.6 °F 25.5 °F 33.8 °F 93% 29.96 in 3.0 mi NW 17.3 mph - 0.01 in Rain , Snow Light Rain
12:16 PM 33.8 °F 23.9 °F 32.0 °F 93% 29.95 in 1.2 mi NNW 15.0 mph - 0.04 in Rain , Snow Light Rain
12:52 PM 34.0 °F 23.8 °F 32.0 °F 92% 29.96 in 1.2 mi NNW 16.1 mph - 0.12 in Snow Light Snow
1:34 PM 33.8 °F 23.9 °F 32.0 °F 93% 29.93 in 1.5 mi NNW 15.0 mph - 0.05 in Rain , Snow Light Rain
1:52 PM 34.0 °F 24.2 °F 33.1 °F 96% 29.95 in 1.5 mi NNW 15.0 mph - 0.06 in Rain , Snow Light Rain
2:16 PM 35.6 °F 26.2 °F 33.8 °F 93% 29.95 in 2.5 mi NNW 15.0 mph - 0.01 in Snow Light Snow
2:52 PM 35.1 °F 25.5 °F 33.1 °F 92% 29.96 in 2.5 mi NNW 15.0 mph - 0.03 in Snow Light Snow
3:52 PM 35.1 °F 25.9 °F 33.1 °F 92% 29.97 in 2.0 mi NNW 13.8 mph - 0.05 in Snow Light Snow
4:09 PM 33.8 °F 24.8 °F 33.8 °F 100% 29.97 in 1.5 mi NW 12.7 mph - 0.02 in Snow Light Snow
4:44 PM 33.8 °F 23.9 °F 32.0 °F 93% 29.99 in 1.2 mi NW 15.0 mph - 0.05 in Snow Light Snow
4:52 PM 35.1 °F 25.9 °F 33.1 °F 92% 30.00 in 1.2 mi NW 13.8 mph - 0.05 in Snow Light Snow
5:24 PM 35.6 °F 25.9 °F 33.8 °F 93% 30.01 in 2.5 mi NW 16.1 mph 23.0 mph 0.02 in Snow Light Snow
5:52 PM 35.1 °F 25.9 °F 33.1 °F 92% 30.03 in 2.5 mi NW 13.8 mph 23.0 mph 0.02 in Snow Light Snow
5:57 PM 35.6 °F 25.5 °F 33.8 °F 93% 30.02 in 6.0 mi NW 17.3 mph 21.9 mph 0.00 in Rain Light Rain
6:17 PM 35.6 °F 26.6 °F 33.8 °F 93% 30.02 in 7.0 mi NNW 13.8 mph 20.7 mph 0.01 in Rain Light Rain
6:52 PM 36.0 °F 26.7 °F 33.1 °F 89% 30.05 in 7.0 mi NW 15.0 mph - 0.01 in Rain Light Rain
7:52 PM 35.6 °F 27.5 °F 33.8 °F 93% 30.06 in 10.0 mi NNW 11.5 mph - N/A   Overcast
8:52 PM 34.0 °F 28.8 °F 32.0 °F 92% 30.08 in 10.0 mi NNW 5.8 mph - N/A   Mostly Cloudy
9:52 PM 34.0 °F 28.8 °F 32.0 °F 92% 30.08 in 10.0 mi NNW 5.8 mph - N/A   Partly Cloudy
10:52 PM 35.1 °F 30.1 °F 32.0 °F 89% 30.09 in 10.0 mi NNW 5.8 mph - N/A   Partly Cloudy
11:52 PM 35.1 °F 26.9 °F 30.9 °F 85% 30.09 in 10.0 mi NW 11.5 mph - N/A   Clear