Weather History for Washington, DC

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Sunday, May 12, 2013

  Actual Average Record
Temperature  
Mean Temperature 60 °F 65 °F  
Max Temperature 67 °F 74 °F 93 °F (1914)
Min Temperature 53 °F 55 °F 37 °F (1913)
Degree Days  
Heating Degree Days 5 3  
Month to date heating degree days 43 45  
Since 1 July heating degree days 3725 3991  
Cooling Degree Days 0 3  
Month to date cooling degree days 16 23  
Year to date cooling degree days 57 49  
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 37 °F    
Average Humidity 48    
Maximum Humidity 73    
Minimum Humidity 23    
Precipitation  
Precipitation T in 0.13 in 2.11 in (1932)
Month to date precipitation 1.20 1.47  
Year to date precipitation 10.96 13.44  
Snow  
Snow 0.00 in 0.00 in - ()
Month to date snowfall 0.0 0.0  
Since 1 July snowfall 3.1 15.4  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.87 in    
Wind  
Wind Speed 13 mph (NW)    
Max Wind Speed 26 mph    
Max Gust Speed 36 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 12, 2013 Rise Set
Actual Time 5:58 AM EDT 8:11 PM EDT
Civil Twilight 5:28 AM EDT 8:41 PM EDT
Nautical Twilight 4:52 AM EDT 9:17 PM EDT
Astronomical Twilight 4:12 AM EDT 9:57 PM EDT
Moon 7:52 AM EDT (5/12) 10:36 PM EDT (5/12)
Length of Visible Light 15h 12m
Length of Day
14h 12m
Waxing Crescent, 6% of the Moon is Illuminated
May 12
Waxing Crescent
May 18
First Quarter
May 25
Full
May 31
Last Quarter
Jun 8
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 66.2 °F 57.2 °F 73% 29.77 in 10.0 mi West 3.5 mph - N/A Rain Light Rain
1:52 AM 64.9 °F 55.9 °F 73% 29.77 in 10.0 mi NNW 5.8 mph - 0.00 in   Overcast
2:52 AM 63.0 °F 54.0 °F 72% 29.76 in 10.0 mi NNW 8.1 mph - 0.00 in Rain Light Rain
3:52 AM 63.0 °F 48.9 °F 60% 29.77 in 10.0 mi NW 12.7 mph - 0.00 in   Overcast
4:52 AM 62.1 °F 48.0 °F 60% 29.78 in 10.0 mi NW 10.4 mph - N/A   Overcast
5:52 AM 61.0 °F 46.0 °F 58% 29.80 in 10.0 mi NW 6.9 mph - N/A   Mostly Cloudy
6:52 AM 60.1 °F 46.0 °F 60% 29.81 in 10.0 mi NNW 3.5 mph - N/A   Scattered Clouds
7:52 AM 62.1 °F 46.0 °F 56% 29.81 in 10.0 mi NW 10.4 mph 21.9 mph N/A   Scattered Clouds
8:52 AM 62.1 °F 45.0 °F 53% 29.83 in 10.0 mi NW 17.3 mph 27.6 mph N/A   Scattered Clouds
9:52 AM 61.0 °F 39.0 °F 44% 29.86 in 10.0 mi NW 15.0 mph 24.2 mph N/A   Scattered Clouds
10:52 AM 61.0 °F 35.1 °F 38% 29.87 in 10.0 mi WNW 19.6 mph 25.3 mph N/A   Mostly Cloudy
10:59 AM 62.6 °F 35.6 °F 37% 29.87 in 10.0 mi NW 16.1 mph 28.8 mph N/A   Mostly Cloudy
11:52 AM 64.0 °F 36.0 °F 35% 29.87 in 10.0 mi WNW 13.8 mph 24.2 mph N/A   Scattered Clouds
12:52 PM 62.1 °F 34.0 °F 35% 29.88 in 10.0 mi WNW 18.4 mph 31.1 mph N/A   Scattered Clouds
1:52 PM 64.0 °F 30.0 °F 28% 29.89 in 10.0 mi NW 23.0 mph 29.9 mph N/A   Scattered Clouds
2:52 PM 64.9 °F 28.0 °F 25% 29.88 in 10.0 mi West 12.7 mph 23.0 mph N/A   Scattered Clouds
3:52 PM 64.9 °F 27.0 °F 24% 29.88 in 10.0 mi WNW 13.8 mph 27.6 mph N/A   Scattered Clouds
4:52 PM 64.9 °F 28.0 °F 25% 29.89 in 10.0 mi NW 16.1 mph 25.3 mph N/A   Scattered Clouds
5:52 PM 63.0 °F 27.0 °F 26% 29.91 in 10.0 mi NW 24.2 mph 32.2 mph N/A   Partly Cloudy
6:52 PM 62.1 °F 25.0 °F 24% 29.92 in 10.0 mi NW 19.6 mph 27.6 mph N/A   Partly Cloudy
7:52 PM 60.1 °F 25.0 °F 26% 29.94 in 10.0 mi NW 17.3 mph 25.3 mph N/A   Partly Cloudy
8:52 PM 57.9 °F 26.1 °F 30% 29.99 in 10.0 mi WNW 6.9 mph - N/A   Partly Cloudy
9:52 PM 57.0 °F 25.0 °F 29% 30.02 in 10.0 mi WNW 9.2 mph - N/A   Partly Cloudy
10:52 PM 55.9 °F 25.0 °F 30% 30.05 in 10.0 mi WNW 9.2 mph - N/A   Scattered Clouds
11:52 PM 54.0 °F 24.1 °F 31% 30.05 in 10.0 mi WNW 9.2 mph - N/A   Scattered Clouds