Dulles Airport, VA

5:44 AM EDT on June 24, 2017 (GMT -0400)
Washington Dulles International

Weather History for KIAD - May, 2014

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Friday, May 16, 2014

  Actual Average Record
Temperature  
Mean Temperature 61 °F 63 °F  
Max Temperature 69 °F 75 °F 90 °F (1998)
Min Temperature 53 °F 51 °F 35 °F (2000)
Degree Days  
Heating Degree Days 4 4  
Month to date heating degree days 49 88  
Since 1 July heating degree days 5119 4660  
Cooling Degree Days 0 2  
Month to date cooling degree days 44 23  
Year to date cooling degree days 55 43  
Growing Degree Days 11 (Base 50)    
Moisture  
Dew Point 53 °F    
Average Humidity 71    
Maximum Humidity 93    
Minimum Humidity 48    
Precipitation  
Precipitation 1.97 in 0.15 in 1.97 in (2014)
Month to date precipitation 4.64 2.26  
Year to date precipitation 22.65 14.53  
Snow  
Snow 0.00 in 0.00 in - ()
Month to date snowfall 0.0 0.0  
Since 1 July snowfall 52.8 22.0  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.85 in    
Wind  
Wind Speed 11 mph (NW)    
Max Wind Speed 25 mph    
Max Gust Speed 37 mph    
Visibility 7 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Date:

Astronomy

May. 16, 2014 Rise Set
Actual Time 5:56 AM EDT 8:16 PM EDT
Civil Twilight 5:26 AM EDT 8:46 PM EDT
Nautical Twilight 4:49 AM EDT 9:24 PM EDT
Astronomical Twilight 4:08 AM EDT 10:05 PM EDT
Moon 10:21 PM EDT (5/16) 7:36 AM EDT (5/16)
Length of Visible Light 15h 20m
Length of Day
14h 20m
Waning Gibbous, 95% of the Moon is Illuminated
May 16
Waning Gibbous
May 21
Last Quarter
May 28
New
Jun 5
First Quarter
Jun 13
Full

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:03 AM 66.2 °F 64.4 °F 94% 29.89 in 3.0 mi SE 8.1 mph - 0.06 in Rain Rain
12:32 AM 66.2 °F 66.2 °F 100% 29.87 in 4.0 mi SE 10.4 mph 21.9 mph 0.11 in Rain Light Rain
12:52 AM 68.0 °F 66.0 °F 93% 29.86 in 4.0 mi SE 12.7 mph 20.7 mph 0.13 in Rain Rain
1:22 AM 69.8 °F 66.2 °F 88% 29.84 in 5.0 mi SSE 20.7 mph 29.9 mph 0.05 in Rain Light Rain
1:52 AM 68.0 °F 66.2 °F 94% 29.83 in 5.0 mi SSE 16.1 mph 26.5 mph N/A Rain Light Rain
2:52 AM 68.0 °F 66.0 °F 93% 29.77 in 5.0 mi SE 15.0 mph 25.3 mph 0.07 in Rain Light Rain
3:20 AM 68.0 °F 66.2 °F 94% 29.76 in 7.0 mi SE 18.4 mph 31.1 mph 0.01 in Rain Light Rain
3:52 AM 68.0 °F 66.2 °F 94% 29.75 in 3.0 mi SSE 13.8 mph 25.3 mph N/A Rain Heavy Rain
4:18 AM 57.2 °F 55.4 °F 94% 29.80 in 2.0 mi WNW 11.5 mph 20.7 mph 0.09 in Rain Heavy Rain
4:27 AM 55.4 °F 53.6 °F 94% 29.79 in 1.0 mi NW 17.3 mph 25.3 mph 0.19 in Rain Heavy Rain
4:38 AM 53.6 °F 53.6 °F 100% 29.79 in 1.0 mi NW 25.3 mph 34.5 mph 0.43 in Rain Heavy Rain
4:52 AM 54.0 °F 52.0 °F 93% 29.81 in 1.5 mi NW 17.3 mph 29.9 mph 0.82 in Rain Heavy Rain
5:07 AM 53.6 °F 51.8 °F 94% 29.80 in 1.8 mi NW 16.1 mph 26.5 mph 0.16 in Rain Heavy Rain
5:31 AM 53.6 °F 51.8 °F 94% 29.82 in 1.0 mi NNW 10.4 mph 23.0 mph 0.68 in Rain Heavy Rain
5:49 AM 53.6 °F 51.8 °F 94% 29.82 in 3.0 mi NNW 9.2 mph - 0.90 in Rain Rain
5:52 AM 53.1 °F 52.0 °F 96% 29.83 in 3.0 mi NW 12.7 mph - 0.91 in Rain Rain
6:02 AM 53.6 °F 51.8 °F 94% 29.84 in 2.0 mi NNW 9.2 mph - 0.01 in Rain Light Rain
6:24 AM 53.6 °F 51.8 °F 94% 29.85 in 5.0 mi NNW 10.4 mph - 0.04 in Rain Light Rain
6:52 AM 54.0 °F 52.0 °F 93% 29.86 in 5.0 mi NNW 10.4 mph 19.6 mph 0.04 in   Overcast
7:52 AM 55.0 °F 51.1 °F 86% 29.87 in 10.0 mi NNW 10.4 mph - 0.00 in   Overcast
8:52 AM 55.0 °F 50.0 °F 83% 29.88 in 10.0 mi NNW 12.7 mph - N/A   Mostly Cloudy
9:52 AM 55.9 °F 48.0 °F 75% 29.89 in 10.0 mi NNW 15.0 mph 23.0 mph N/A   Mostly Cloudy
10:13 AM 57.2 °F 48.2 °F 72% 29.89 in 10.0 mi NNW 13.8 mph 21.9 mph N/A   Scattered Clouds
10:52 AM 61.0 °F 50.0 °F 67% 29.88 in 10.0 mi NNW 15.0 mph 21.9 mph N/A   Scattered Clouds
11:52 AM 63.0 °F 50.0 °F 63% 29.88 in 10.0 mi NW 12.7 mph 20.7 mph N/A   Mostly Cloudy
12:52 PM 63.0 °F 50.0 °F 63% 29.88 in 10.0 mi WNW 12.7 mph 18.4 mph N/A   Mostly Cloudy
1:52 PM 64.9 °F 48.9 °F 56% 29.87 in 10.0 mi Variable 4.6 mph - N/A   Mostly Cloudy
2:52 PM 66.9 °F 50.0 °F 54% 29.86 in 10.0 mi WNW 12.7 mph - N/A   Mostly Cloudy
3:52 PM 66.2 °F 48.2 °F 52% 29.85 in 10.0 mi WNW 6.9 mph - N/A   Mostly Cloudy
4:52 PM 64.9 °F 48.0 °F 54% 29.85 in 10.0 mi NW 6.9 mph - N/A   Mostly Cloudy
5:52 PM 66.9 °F 48.0 °F 51% 29.85 in 10.0 mi NNW 9.2 mph - N/A   Mostly Cloudy
6:52 PM 66.0 °F 46.9 °F 50% 29.86 in 10.0 mi NW 5.8 mph - N/A   Scattered Clouds
7:52 PM 64.0 °F 45.0 °F 50% 29.88 in 10.0 mi NW 6.9 mph - N/A   Scattered Clouds
8:52 PM 61.0 °F 46.0 °F 58% 29.89 in 10.0 mi NNW 4.6 mph - N/A   Scattered Clouds
9:52 PM 62.1 °F 45.0 °F 53% 29.93 in 10.0 mi North 12.7 mph - N/A   Mostly Cloudy
10:52 PM 60.8 °F 44.6 °F 55% 29.95 in 10.0 mi North 8.1 mph - N/A   Overcast
11:52 PM 57.9 °F 42.1 °F 56% 29.97 in 10.0 mi North 9.2 mph - N/A   Overcast