Arlington, DC

9:04 AM EDT on August 29, 2016 (GMT -0400)
Ronald Reagan Washington National

Weather History for KDCA - December, 2012

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Wednesday, December 5, 2012

  Actual Average Record
Temperature  
Mean Temperature 52 °F 43 °F  
Max Temperature 63 °F 50 °F 75 °F (2001)
Min Temperature 40 °F 35 °F 14 °F (1886)
Degree Days  
Heating Degree Days 13 22  
Month to date heating degree days 63 108  
Since 1 July heating degree days 774 803  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1975 1549  
Growing Degree Days 1 (Base 50)    
Moisture  
Dew Point 35 °F    
Average Humidity 53    
Maximum Humidity 72    
Minimum Humidity 33    
Precipitation  
Precipitation T in 0.11 in 1.72 in (1993)
Month to date precipitation 0.02 0.54  
Year to date precipitation 29.44 37.23  
Snow  
Snow 0.00 in 0.10 in 6.10 in (2002)
Month to date snowfall 0.0 0.3  
Since 1 July snowfall T 0.8  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.15 in    
Wind  
Wind Speed 13 mph (NW)    
Max Wind Speed 22 mph    
Max Gust Speed 28 mph    
Visibility 10 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

Dec. 05, 2012 Rise Set
Actual Time 7:11 AM EST 4:46 PM EST
Civil Twilight 6:42 AM EST 5:15 PM EST
Nautical Twilight 6:08 AM EST 5:48 PM EST
Astronomical Twilight 5:36 AM EST 6:21 PM EST
Moon 11:30 PM EST (12/5) 11:37 AM EST (12/5)
Length of Visible Light 10h 33m
Length of Day
9h 34m
Waning Gibbous, 60% of the Moon is Illuminated
Dec 5
Waning Gibbous
Dec 6
Last Quarter
Dec 13
New
Dec 20
First Quarter
Dec 28
Full

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 62.1 °F - 46.9 °F 58% 30.01 in 10.0 mi SSW 13.8 mph - N/A   Mostly Cloudy
1:52 AM 57.0 °F - 46.9 °F 69% 30.00 in 10.0 mi SSW 6.9 mph - N/A   Partly Cloudy
2:52 AM 59.0 °F - 48.0 °F 67% 30.00 in 10.0 mi SW 5.8 mph - N/A   Mostly Cloudy
3:52 AM 57.9 °F - 48.0 °F 70% 30.03 in 10.0 mi NNW 8.1 mph - N/A   Mostly Cloudy
4:33 AM 60.8 °F - 48.2 °F 63% 30.04 in 10.0 mi NNW 18.4 mph 24.2 mph N/A   Mostly Cloudy
4:52 AM 60.1 °F - 46.9 °F 62% 30.05 in 10.0 mi NNW 11.5 mph - N/A   Mostly Cloudy
5:52 AM 59.0 °F - 42.1 °F 53% 30.07 in 10.0 mi NNW 16.1 mph 24.2 mph 0.00 in Rain Light Rain
6:52 AM 57.0 °F - 42.1 °F 57% 30.12 in 10.0 mi NNW 12.7 mph - 0.00 in Rain Light Rain
7:52 AM 55.9 °F - 41.0 °F 57% 30.13 in 10.0 mi North 11.5 mph - 0.00 in   Overcast
9:52 AM 55.9 °F - 35.1 °F 45% 30.17 in 10.0 mi NNW 15.0 mph - N/A   Overcast
10:52 AM 55.9 °F - 33.1 °F 42% 30.17 in 10.0 mi NNW 11.5 mph 18.4 mph N/A   Mostly Cloudy
11:52 AM 55.9 °F - 32.0 °F 40% 30.16 in 10.0 mi NW 11.5 mph - N/A   Mostly Cloudy
12:52 PM 57.9 °F - 33.1 °F 39% 30.14 in 10.0 mi NNW 11.5 mph - N/A   Mostly Cloudy
1:52 PM 59.0 °F - 30.9 °F 35% 30.13 in 10.0 mi NW 20.7 mph 26.5 mph N/A   Scattered Clouds
2:52 PM 59.0 °F - 30.0 °F 33% 30.13 in 10.0 mi WNW 11.5 mph 20.7 mph N/A   Scattered Clouds
3:52 PM 57.9 °F - 28.9 °F 33% 30.15 in 10.0 mi NNW 11.5 mph - N/A   Scattered Clouds
4:52 PM 55.0 °F - 28.0 °F 35% 30.17 in 10.0 mi NW 11.5 mph - N/A   Partly Cloudy
5:52 PM 53.1 °F - 27.0 °F 37% 30.21 in 10.0 mi NNW 18.4 mph 27.6 mph N/A   Clear
6:52 PM 50.0 °F - 28.0 °F 43% 30.25 in 10.0 mi NNW 15.0 mph 21.9 mph N/A   Partly Cloudy
7:52 PM 46.9 °F - 26.1 °F 44% 30.27 in 10.0 mi North 16.1 mph 20.7 mph N/A   Scattered Clouds
8:52 PM 46.0 °F 39.0 °F 26.1 °F 46% 30.29 in 10.0 mi NNW 17.3 mph - N/A   Scattered Clouds
9:52 PM 44.1 °F 36.8 °F 24.1 °F 45% 30.31 in 10.0 mi NNW 16.1 mph 25.3 mph N/A   Scattered Clouds
10:52 PM 42.1 °F 34.2 °F 24.1 °F 49% 30.31 in 10.0 mi North 16.1 mph - N/A   Scattered Clouds
11:52 PM 39.9 °F 32.9 °F 21.9 °F 49% 30.32 in 10.0 mi North 11.5 mph - N/A   Mostly Cloudy