Weather History for Washington, DC

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Monday, April 15, 2013

  Actual Average Record
Temperature  
Mean Temperature 60 °F 57 °F  
Max Temperature 63 °F 67 °F 89 °F (1941)
Min Temperature 57 °F 47 °F 28 °F (1904)
Degree Days  
Heating Degree Days 5 9  
Month to date heating degree days 127 166  
Since 1 July heating degree days 3592 3842  
Cooling Degree Days 0 1  
Month to date cooling degree days 29 6  
Year to date cooling degree days 29 8  
Growing Degree Days 10 (Base 50)    
Moisture  
Dew Point 46 °F    
Average Humidity 63    
Maximum Humidity 72    
Minimum Humidity 53    
Precipitation  
Precipitation T in 0.09 in 2.41 in (2007)
Month to date precipitation 1.08 1.57  
Year to date precipitation 8.08 10.48  
Snow  
Snow 0.00 in 0.00 in 0.20 in (1923)
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 30.24 in    
Wind  
Wind Speed 7 mph (ESE)    
Max Wind Speed 15 mph    
Max Gust Speed 18 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Apr. 15, 2013 Rise Set
Actual Time 6:31 AM EDT 7:45 PM EDT
Civil Twilight 6:03 AM EDT 8:13 PM EDT
Nautical Twilight 5:30 AM EDT 8:46 PM EDT
Astronomical Twilight 4:56 AM EDT 9:20 PM EDT
Moon 9:57 AM EDT (4/15) No Moon Set
Length of Visible Light 14h 09m
Length of Day
13h 14m
Waxing Crescent, 24% of the Moon is Illuminated
Apr 15
Waxing Crescent
Apr 18
First Quarter
Apr 25
Full
May 2
Last Quarter
May 9
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 59.0 °F 43.0 °F 55% 30.14 in 10.0 mi SSE 5.8 mph - N/A   Mostly Cloudy
1:52 AM 59.0 °F 43.0 °F 55% 30.14 in 10.0 mi SSE 3.5 mph - N/A   Mostly Cloudy
2:52 AM 59.0 °F 43.0 °F 55% 30.16 in 10.0 mi Calm Calm - N/A   Overcast
3:52 AM 59.0 °F 43.0 °F 55% 30.18 in 10.0 mi ESE 5.8 mph - N/A   Overcast
4:52 AM 57.9 °F 43.0 °F 58% 30.19 in 10.0 mi SE 4.6 mph - 0.00 in Rain Light Rain
5:52 AM 57.9 °F 44.1 °F 60% 30.20 in 10.0 mi South 5.8 mph - 0.00 in   Overcast
6:52 AM 57.0 °F 46.0 °F 67% 30.22 in 10.0 mi SE 3.5 mph - 0.00 in Rain Light Rain
7:52 AM 57.0 °F 48.0 °F 72% 30.24 in 10.0 mi East 5.8 mph - 0.00 in Rain Light Rain
8:52 AM 57.9 °F 50.0 °F 75% 30.24 in 10.0 mi ESE 4.6 mph - 0.00 in   Overcast
9:52 AM 59.0 °F 50.0 °F 72% 30.24 in 10.0 mi East 4.6 mph - 0.00 in   Overcast
10:52 AM 61.0 °F 50.0 °F 67% 30.24 in 10.0 mi East 10.4 mph - N/A   Overcast
11:52 AM 61.0 °F 46.9 °F 60% 30.24 in 10.0 mi ESE 11.5 mph - N/A   Overcast
12:05 PM 60.8 °F 46.4 °F 59% 30.25 in 10.0 mi SE 5.8 mph - 0.00 in Rain Light Rain
12:24 PM 60.8 °F 46.4 °F 59% 30.25 in 10.0 mi SE 8.1 mph - 0.00 in   Overcast
12:52 PM 61.0 °F 46.9 °F 60% 30.25 in 10.0 mi SE 9.2 mph - 0.00 in   Overcast
1:52 PM 62.1 °F 48.0 °F 60% 30.25 in 10.0 mi East 8.1 mph - N/A   Overcast
2:52 PM 63.0 °F 48.0 °F 58% 30.25 in 10.0 mi ESE 9.2 mph - N/A   Overcast
3:37 PM 62.6 °F 46.4 °F 55% 30.24 in 10.0 mi ESE 11.5 mph - N/A   Overcast
3:52 PM 61.0 °F 46.9 °F 60% 30.25 in 10.0 mi East 10.4 mph - N/A   Overcast
4:52 PM 62.1 °F 46.9 °F 58% 30.24 in 10.0 mi ESE 10.4 mph - N/A   Overcast
5:52 PM 62.1 °F 46.0 °F 56% 30.25 in 10.0 mi ESE 11.5 mph - N/A   Overcast
6:52 PM 61.0 °F 45.0 °F 56% 30.26 in 10.0 mi East 8.1 mph - N/A   Overcast
7:52 PM 60.1 °F 44.1 °F 55% 30.27 in 10.0 mi ESE 8.1 mph - N/A   Overcast
8:52 PM 60.1 °F 45.0 °F 57% 30.29 in 10.0 mi ESE 8.1 mph - N/A   Overcast
9:52 PM 59.0 °F 45.0 °F 60% 30.30 in 10.0 mi East 6.9 mph - N/A   Overcast
10:52 PM 59.0 °F 46.0 °F 62% 30.30 in 10.0 mi ESE 3.5 mph - N/A   Overcast
11:52 PM 59.0 °F 46.0 °F 62% 30.30 in 10.0 mi ESE 4.6 mph - N/A   Overcast