Weather History for KDCA - January, 2012

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Wednesday, January 11, 2012

  Actual Average Record
Temperature  
Mean Temperature 41 °F 36 °F  
Max Temperature 49 °F 43 °F 75 °F (1975)
Min Temperature 33 °F 29 °F 2 °F (1982)
Degree Days  
Heating Degree Days 24 29  
Month to date heating degree days 265 319  
Since 1 July heating degree days 1473 1800  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 38 °F    
Average Humidity 85    
Maximum Humidity 93    
Minimum Humidity 76    
Precipitation  
Precipitation 0.51 in 0.10 in 1.72 in (1922)
Month to date precipitation 0.67 0.98  
Year to date precipitation 0.67 0.98  
Snow  
Snow 0.00 in 0.10 in 4.30 in (1904)
Month to date snowfall 0.6 1.4  
Since 1 July snowfall 0.6 4.2  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.91 in    
Wind  
Wind Speed 6 mph (NE)    
Max Wind Speed 14 mph    
Max Gust Speed 18 mph    
Visibility 6 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Jan. 11, 2012 Rise Set
Actual Time 7:26 AM EST 5:05 PM EST
Civil Twilight 6:56 AM EST 5:35 PM EST
Nautical Twilight 6:23 AM EST 6:08 PM EST
Astronomical Twilight 5:51 AM EST 6:40 PM EST
Moon 7:59 PM EST (1/11) 8:39 AM EST (1/11)
Length of Visible Light 10h 38m
Length of Day
9h 39m
Waning Gibbous, 93% of the Moon is Illuminated
Jan 11
Waning Gibbous
Jan 16
Last Quarter
Jan 23
New
Jan 30
First Quarter
Feb 7
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 34.0 °F 28.0 °F 30.0 °F 85% 30.05 in 10.0 mi North 6.9 mph - N/A   Clear
1:52 AM 36.0 °F - 30.9 °F 82% 30.05 in 10.0 mi Calm Calm - N/A   Partly Cloudy
2:52 AM 35.1 °F 31.0 °F 30.0 °F 82% 30.05 in 10.0 mi NE 4.6 mph - N/A   Clear
3:52 AM 34.0 °F 28.8 °F 28.9 °F 82% 30.03 in 10.0 mi ENE 5.8 mph - N/A   Clear
4:52 AM 33.8 °F 28.6 °F 30.2 °F 87% 30.03 in 10.0 mi ENE 5.8 mph - N/A   Clear
5:52 AM 33.1 °F 27.7 °F 28.9 °F 85% 30.01 in 10.0 mi NE 5.8 mph - N/A   Mostly Cloudy
6:52 AM 34.0 °F 29.8 °F 28.9 °F 82% 30.01 in 10.0 mi ENE 4.6 mph - N/A   Mostly Cloudy
7:52 AM 34.0 °F 28.8 °F 30.0 °F 85% 30.04 in 10.0 mi NE 5.8 mph - N/A   Overcast
8:52 AM 36.0 °F 30.3 °F 33.1 °F 89% 30.05 in 5.0 mi ENE 6.9 mph - N/A   Overcast
9:00 AM 35.6 °F 30.7 °F 33.8 °F 93% 30.05 in 4.0 mi ENE 5.8 mph - N/A   Overcast
9:18 AM 37.4 °F 32.8 °F 33.8 °F 87% 30.05 in 4.0 mi NE 5.8 mph - N/A   Overcast
9:52 AM 39.0 °F 36.8 °F 35.1 °F 86% 30.04 in 5.0 mi NE 3.5 mph - N/A   Overcast
10:21 AM 39.2 °F 37.0 °F 35.6 °F 87% 30.04 in 5.0 mi North 3.5 mph - N/A   Overcast
10:52 AM 41.0 °F 39.0 °F 37.0 °F 86% 30.03 in 5.0 mi North 3.5 mph - N/A   Overcast
11:18 AM 42.8 °F - 37.4 °F 81% 30.02 in 6.0 mi Calm Calm - 0.00 in Rain Light Rain
11:52 AM 44.1 °F 42.5 °F 37.9 °F 79% 30.00 in 7.0 mi North 3.5 mph - 0.00 in   Overcast
11:58 AM 44.6 °F - 37.4 °F 76% 30.00 in 6.0 mi Calm Calm - 0.00 in Rain Light Rain
12:52 PM 44.1 °F 41.5 °F 39.0 °F 82% 29.95 in 5.0 mi ENE 4.6 mph - 0.03 in Rain Light Rain
1:52 PM 46.0 °F 44.8 °F 42.1 °F 86% 29.92 in 9.0 mi East 3.5 mph - 0.01 in   Overcast
2:52 PM 46.0 °F 41.0 °F 43.0 °F 89% 29.89 in 9.0 mi East 10.4 mph - N/A   Overcast
3:52 PM 46.0 °F 41.4 °F 42.1 °F 86% 29.88 in 7.0 mi East 9.2 mph - 0.00 in Rain Light Rain
4:52 PM 46.0 °F 41.9 °F 42.1 °F 86% 29.86 in 5.0 mi East 8.1 mph - 0.00 in Rain Light Rain
5:52 PM 45.0 °F 40.6 °F 42.1 °F 90% 29.83 in 4.0 mi ENE 8.1 mph - 0.06 in Rain Light Rain
5:57 PM 44.6 °F 40.7 °F 42.8 °F 93% 29.82 in 4.0 mi ENE 6.9 mph - 0.01 in Rain Light Rain
6:04 PM 44.6 °F 40.2 °F 42.8 °F 93% 29.82 in 4.0 mi NE 8.1 mph - 0.03 in Rain Light Rain
6:13 PM 44.6 °F 39.7 °F 42.8 °F 93% 29.81 in 4.0 mi ENE 9.2 mph - 0.04 in Rain Rain
6:52 PM 45.0 °F 41.2 °F 42.1 °F 90% 29.79 in 4.0 mi ENE 6.9 mph - 0.10 in Rain Light Rain
7:52 PM 46.0 °F 41.4 °F 42.1 °F 86% 29.75 in 4.0 mi ENE 9.2 mph - 0.01 in Rain Light Rain
8:52 PM 46.0 °F 41.9 °F 43.0 °F 89% 29.70 in 5.0 mi ENE 8.1 mph - 0.07 in Rain Light Rain
9:13 PM 46.4 °F 42.4 °F 42.8 °F 87% 29.68 in 4.0 mi NE 8.1 mph - 0.04 in Rain Rain
9:52 PM 46.0 °F 41.4 °F 43.0 °F 89% 29.63 in 6.0 mi NE 9.2 mph - 0.07 in Rain Light Rain
10:52 PM 46.9 °F - 45.0 °F 93% 29.59 in 5.0 mi East 8.1 mph - 0.01 in Rain Light Rain
11:52 PM 48.9 °F - 46.9 °F 93% 29.54 in 4.0 mi North 8.1 mph - 0.15 in Rain Light Rain