Weather History for Washington, DC

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Sunday, November 18, 2012

  Actual Average Record
Temperature  
Mean Temperature 47 °F 49 °F  
Max Temperature 53 °F 57 °F 80 °F (1921)
Min Temperature 40 °F 41 °F 21 °F (1959)
Degree Days  
Heating Degree Days 18 16  
Month to date heating degree days 306 243  
Since 1 July heating degree days 474 472  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1975 1547  
Moisture  
Dew Point 37 °F    
Average Humidity 68    
Maximum Humidity 82    
Minimum Humidity 54    
Precipitation  
Precipitation 0.00 in 0.10 in 0.90 in (1926)
Month to date precipitation 0.54 1.88  
Year to date precipitation 29.36 35.40  
Snow  
Snow 0.00 in 0.00 in T in (2008)
Month to date snowfall T 0.2  
Since 1 July snowfall T 0.2  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.57 in    
Wind  
Wind Speed 10 mph (NE)    
Max Wind Speed 15 mph    
Max Gust Speed 21 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Nov. 18, 2012 Rise Set
Actual Time 6:54 AM EST 4:51 PM EST
Civil Twilight 6:25 AM EST 5:20 PM EST
Nautical Twilight 5:53 AM EST 5:53 PM EST
Astronomical Twilight 5:21 AM EST 6:24 PM EST
Moon 11:20 AM EST (11/18) 10:08 PM EST (11/18)
Length of Visible Light 10h 54m
Length of Day
9h 57m
Waxing Crescent, 30% of the Moon is Illuminated
Nov 18
Waxing Crescent
Nov 20
First Quarter
Nov 28
Full
Dec 6
Last Quarter
Dec 13
New

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 42.1 °F 37.1 °F 34.0 °F 73% 30.59 in 10.0 mi NE 8.1 mph - N/A   Mostly Cloudy
1:52 AM 41.0 °F 38.0 °F 35.1 °F 79% 30.60 in 10.0 mi NE 4.6 mph - N/A   Mostly Cloudy
2:52 AM 42.1 °F 37.7 °F 37.0 °F 82% 30.59 in 10.0 mi NE 6.9 mph - N/A   Overcast
3:52 AM 42.1 °F 37.1 °F 37.0 °F 82% 30.59 in 10.0 mi NNE 8.1 mph - N/A   Overcast
4:52 AM 41.0 °F 37.1 °F 36.0 °F 82% 30.61 in 10.0 mi NE 5.8 mph - N/A   Partly Cloudy
5:52 AM 41.0 °F 36.4 °F 36.0 °F 82% 30.61 in 10.0 mi NE 6.9 mph - N/A   Partly Cloudy
6:52 AM 41.0 °F 35.8 °F 36.0 °F 82% 30.61 in 10.0 mi NE 8.1 mph - N/A   Scattered Clouds
7:52 AM 42.1 °F 36.1 °F 35.1 °F 76% 30.62 in 10.0 mi NE 10.4 mph - N/A   Mostly Cloudy
8:52 AM 45.0 °F 39.7 °F 36.0 °F 71% 30.62 in 10.0 mi NE 10.4 mph - N/A   Mostly Cloudy
9:52 AM 46.9 °F - 36.0 °F 66% 30.61 in 10.0 mi ENE 12.7 mph - N/A   Mostly Cloudy
10:52 AM 50.0 °F - 37.0 °F 61% 30.61 in 10.0 mi NE 11.5 mph - N/A   Mostly Cloudy
11:52 AM 52.0 °F - 39.0 °F 61% 30.59 in 10.0 mi NE 11.5 mph - N/A   Mostly Cloudy
12:52 PM 52.0 °F - 39.0 °F 61% 30.57 in 10.0 mi NE 13.8 mph - N/A   Mostly Cloudy
1:52 PM 52.0 °F - 39.0 °F 61% 30.54 in 10.0 mi ENE 12.7 mph - N/A   Mostly Cloudy
2:52 PM 53.1 °F - 37.9 °F 57% 30.54 in 10.0 mi NE 11.5 mph 20.7 mph N/A   Mostly Cloudy
3:52 PM 51.1 °F - 39.0 °F 63% 30.54 in 10.0 mi ENE 13.8 mph - N/A   Overcast
4:52 PM 50.0 °F - 39.0 °F 66% 30.54 in 10.0 mi NE 10.4 mph - N/A   Overcast
5:52 PM 48.9 °F - 37.9 °F 66% 30.54 in 10.0 mi NNE 9.2 mph - N/A   Mostly Cloudy
6:52 PM 48.0 °F - 37.9 °F 68% 30.55 in 10.0 mi NNE 6.9 mph - N/A   Mostly Cloudy
7:52 PM 48.0 °F - 37.9 °F 68% 30.56 in 10.0 mi NNE 6.9 mph - N/A   Mostly Cloudy
8:52 PM 48.0 °F - 37.9 °F 68% 30.54 in 10.0 mi NNE 10.4 mph - N/A   Mostly Cloudy
9:52 PM 48.9 °F - 37.9 °F 66% 30.54 in 10.0 mi NE 10.4 mph - N/A   Overcast
10:52 PM 48.9 °F - 37.9 °F 66% 30.53 in 10.0 mi NE 9.2 mph - N/A   Mostly Cloudy
11:52 PM 48.9 °F - 37.9 °F 66% 30.52 in 10.0 mi NE 9.2 mph - N/A   Mostly Cloudy