Dulles Airport, VA

9:01 AM EST on November 18, 2019 (GMT -0500)
Washington Dulles International

Weather History for KIAD - October, 2019

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Monday, October 21, 2019

  Actual Average Record
Temperature  
Mean Temperature 62 °F 54 °F  
Max Temperature 69 °F 67 °F 86 °F (1979)
Min Temperature 54 °F 42 °F 22 °F (1972)
Degree Days  
Heating Degree Days 3 11  
Month to date heating degree days 113 172  
Since 1 July heating degree days 118 230  
Cooling Degree Days 0 0  
Month to date cooling degree days 48 16  
Year to date cooling degree days 1521 1173  
Growing Degree Days 12 (Base 50)    
Moisture  
Dew Point 50 °F    
Average Humidity 71    
Maximum Humidity 93    
Minimum Humidity 49    
Precipitation  
Precipitation 0.00 in 0.11 in 2.45 in (1995)
Month to date precipitation 2.58 2.19  
Year to date precipitation 32.83 34.11  
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 30.06 in    
Wind  
Wind Speed 6 mph (NNE)    
Max Wind Speed 16 mph    
Max Gust Speed 20 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Astronomy

Oct. 21, 2019 Rise Set
Actual Time 7:25 AM EDT 6:23 PM EDT
Civil Twilight 6:58 AM EDT 6:50 PM EDT
Nautical Twilight 6:26 AM EDT 7:21 PM EDT
Astronomical Twilight 5:56 AM EDT 7:52 PM EDT
Moon No Moon Rise 2:39 PM EDT (10/21)
Length of Visible Light 11h 52m
Length of Day
10h 58m
Waning Gibbous, 48% of the Moon is Illuminated
Oct 21
Waning Gibbous
Oct 27
New
Nov 4
First Quarter
Nov 12
Full
Nov 19
Last Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 54.0 °F 50.0 °F 86% 30.00 in 10.0 mi North 11.5 mph - N/A   Overcast
1:52 AM 54.0 °F 51.1 °F 90% 30.01 in 10.0 mi NNW 8.1 mph - N/A   Overcast
2:52 AM 54.0 °F 50.0 °F 86% 30.01 in 10.0 mi North 9.2 mph - N/A   Overcast
3:52 AM 54.0 °F 48.9 °F 83% 30.02 in 10.0 mi NNW 9.2 mph - N/A   Overcast
4:52 AM 54.0 °F 48.9 °F 83% 30.04 in 10.0 mi North 13.8 mph - N/A   Overcast
5:52 AM 54.0 °F 48.0 °F 80% 30.04 in 10.0 mi North 9.2 mph - N/A   Overcast
7:52 AM 54.0 °F 48.0 °F 80% 30.07 in 10.0 mi North 6.9 mph - N/A   Overcast
8:52 AM 55.0 °F 48.0 °F 77% 30.10 in 10.0 mi NNE 8.1 mph - N/A   Overcast
9:52 AM 55.9 °F 48.0 °F 75% 30.12 in 10.0 mi North 8.1 mph - N/A   Overcast
10:52 AM 57.0 °F 48.0 °F 72% 30.11 in 10.0 mi NE 5.8 mph - N/A   Mostly Cloudy
11:30 AM 60.1 °F 48.9 °F 67% 30.10 in 10.0 mi NNE 5.8 mph - N/A   Scattered Clouds
11:52 AM 62.1 °F 48.9 °F 62% 30.11 in 10.0 mi WNW 4.6 mph - N/A   Scattered Clouds
12:52 PM 62.1 °F 48.9 °F 62% 30.11 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:52 PM 64.9 °F 48.9 °F 56% 30.07 in 10.0 mi NW 4.6 mph - N/A   Partly Cloudy
2:52 PM 66.9 °F 48.9 °F 52% 30.06 in 10.0 mi WNW 3.5 mph - N/A   Partly Cloudy
3:52 PM 68.0 °F 48.9 °F 50% 30.05 in 10.0 mi Calm Calm - N/A   Partly Cloudy
4:52 PM 68.0 °F 50.0 °F 52% 30.03 in 10.0 mi East 3.5 mph - N/A   Partly Cloudy
5:52 PM 64.9 °F 50.0 °F 58% 30.03 in 10.0 mi SSE 5.8 mph - N/A   Partly Cloudy
6:52 PM 62.1 °F 51.1 °F 67% 30.05 in 10.0 mi SSE 4.6 mph - N/A   Mostly Cloudy
7:52 PM 59.0 °F 51.1 °F 75% 30.05 in 10.0 mi SSE 5.8 mph - N/A   Overcast
8:52 PM 59.0 °F 51.1 °F 75% 30.08 in 10.0 mi South 3.5 mph - N/A   Overcast
9:52 PM 57.9 °F 51.1 °F 78% 30.08 in 10.0 mi SSE 4.6 mph - N/A   Overcast
10:52 PM 57.9 °F 52.0 °F 81% 30.06 in 10.0 mi SSE 5.8 mph - N/A   Overcast
11:52 PM 57.0 °F 52.0 °F 83% 30.06 in 10.0 mi SSE 4.6 mph - N/A   Overcast