Washington, VA

4:57 PM EDT on June 22, 2017 (GMT -0400)
Ronald Reagan Washington National

Weather History for KDCA - January, 2012

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Saturday, January 21, 2012

  Actual Average Record
Temperature  
Mean Temperature 31 °F 36 °F  
Max Temperature 34 °F 43 °F 70 °F (1959)
Min Temperature 28 °F 28 °F -4 °F (1985)
Degree Days  
Heating Degree Days 34 29  
Month to date heating degree days 534 609  
Since 1 July heating degree days 1742 2090  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 27 °F    
Average Humidity 82    
Maximum Humidity 92    
Minimum Humidity 72    
Precipitation  
Precipitation 0.23 in 0.10 in 1.41 in (1902)
Month to date precipitation 1.53 1.90  
Year to date precipitation 1.53 1.90  
Snow  
Snow 0.70 in 0.20 in 3.80 in (2014)
Month to date snowfall 1.8 3.4  
Since 1 July snowfall 1.8 6.2  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 30.08 in    
Wind  
Wind Speed 9 mph (NNE)    
Max Wind Speed 21 mph    
Max Gust Speed 23 mph    
Visibility 7 miles    
Events Rain , Snow    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Date:

Astronomy

Jan. 21, 2012 Rise Set
Actual Time 7:22 AM EST 5:16 PM EST
Civil Twilight 6:53 AM EST 5:45 PM EST
Nautical Twilight 6:21 AM EST 6:17 PM EST
Astronomical Twilight 5:49 AM EST 6:49 PM EST
Moon 5:51 AM EST (1/21) 3:50 PM EST (1/21)
Length of Visible Light 10h 51m
Length of Day
9h 53m
Waning Crescent, 3% of the Moon is Illuminated
Jan 21
Waning Crescent
Jan 23
New
Jan 30
First Quarter
Feb 7
Full
Feb 14
Last Quarter

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:18 AM 28.4 °F 22.2 °F 24.8 °F 86% 30.18 in 1.0 mi East 5.8 mph - 0.04 in Snow Light Snow
12:42 AM 28.4 °F - 24.8 °F 86% 30.18 in 2.0 mi Calm Calm - 0.06 in Snow Light Snow
12:52 AM 28.0 °F - 25.0 °F 88% 30.18 in 4.0 mi Calm Calm - 0.06 in Snow Light Snow
1:07 AM 28.4 °F - 24.8 °F 86% 30.18 in 2.5 mi Calm Calm - 0.02 in Snow Light Snow
1:32 AM 28.4 °F - 24.8 °F 86% 30.17 in 4.0 mi Calm Calm - 0.05 in Snow Light Snow
1:42 AM 28.4 °F - 26.6 °F 93% 30.16 in 4.0 mi Calm Calm - 0.06 in Rain , Snow Light Freezing Rain
1:52 AM 28.9 °F 25.2 °F 26.1 °F 89% 30.15 in 4.0 mi SSE 3.5 mph - 0.07 in Rain , Snow Light Freezing Rain
2:52 AM 30.0 °F 26.5 °F 27.0 °F 88% 30.12 in 4.0 mi East 3.5 mph - 0.03 in Rain Light Freezing Rain
3:26 AM 30.2 °F - 26.6 °F 86% 30.08 in 3.0 mi Calm Calm - 0.02 in Rain Light Freezing Rain
3:35 AM 30.2 °F 26.7 °F 26.6 °F 86% 30.07 in 3.0 mi NE 3.5 mph - 0.03 in Rain Light Freezing Rain
3:52 AM 30.0 °F 25.2 °F 27.0 °F 88% 30.06 in 3.0 mi NE 4.6 mph - 0.03 in Rain Light Freezing Rain
4:52 AM 30.9 °F 26.2 °F 28.9 °F 92% 30.06 in 2.0 mi NNE 4.6 mph - 0.01 in Rain Light Freezing Rain
5:18 AM 30.2 °F 22.6 °F 28.4 °F 93% 30.02 in 1.8 mi NNE 8.1 mph - 0.02 in Rain Light Freezing Rain
5:29 AM 30.2 °F 22.6 °F 28.4 °F 93% 30.01 in 2.0 mi NE 8.1 mph - 0.02 in Rain Light Freezing Rain
5:52 AM 30.9 °F 24.3 °F 28.0 °F 89% 30.00 in 2.5 mi NE 6.9 mph - 0.02 in Rain Light Freezing Rain
6:45 AM 30.2 °F 23.4 °F 28.4 °F 93% 29.97 in 3.0 mi NE 6.9 mph - 0.01 in Rain Light Freezing Rain
6:52 AM 30.9 °F 25.2 °F 28.0 °F 89% 29.97 in 4.0 mi NE 5.8 mph - 0.01 in Rain Light Freezing Rain
7:42 AM 30.2 °F 21.3 °F 28.4 °F 93% 29.98 in 10.0 mi NNE 10.4 mph - 0.01 in   Overcast
7:52 AM 30.9 °F 21.7 °F 28.0 °F 89% 29.99 in 10.0 mi NNE 11.5 mph - 0.01 in   Overcast
8:08 AM 30.2 °F 21.3 °F 28.4 °F 93% 29.99 in 10.0 mi NNE 10.4 mph - N/A   Overcast
8:52 AM 30.9 °F 22.8 °F 28.0 °F 89% 29.98 in 10.0 mi NNE 9.2 mph - N/A   Overcast
9:21 AM 30.2 °F 21.3 °F 28.4 °F 93% 29.98 in 10.0 mi NNE 10.4 mph - 0.00 in   Light Freezing Drizzle
9:52 AM 32.0 °F 23.6 °F 28.0 °F 85% 29.97 in 10.0 mi NNE 10.4 mph - 0.00 in   Light Freezing Drizzle
10:25 AM 32.0 °F 24.8 °F 28.4 °F 87% 29.98 in 10.0 mi NNE 8.1 mph - 0.00 in   Overcast
10:37 AM 32.0 °F 27.5 °F 28.4 °F 87% 29.97 in 10.0 mi NNE 4.6 mph - 0.00 in   Overcast
10:52 AM 32.0 °F 25.6 °F 28.9 °F 88% 29.97 in 10.0 mi NNE 6.9 mph - 0.00 in   Overcast
11:18 AM 33.8 °F 27.7 °F 28.4 °F 81% 29.98 in 10.0 mi NNW 6.9 mph - N/A   Overcast
11:52 AM 33.1 °F 24.9 °F 28.9 °F 85% 29.99 in 10.0 mi NNW 10.4 mph - N/A   Overcast
12:52 PM 33.1 °F 26.1 °F 28.9 °F 85% 29.98 in 10.0 mi North 8.1 mph - 0.00 in Rain Light Rain
1:52 PM 33.1 °F 26.1 °F 28.9 °F 85% 29.98 in 6.0 mi NNW 8.1 mph - 0.00 in   Light Drizzle
1:55 PM 33.8 °F 27.7 °F 28.4 °F 81% 29.98 in 6.0 mi NW 6.9 mph - 0.00 in   Light Drizzle
2:52 PM 33.1 °F 23.9 °F 28.9 °F 85% 30.01 in 6.0 mi NNW 12.7 mph - 0.00 in   Overcast
3:52 PM 34.0 °F 24.6 °F 28.0 °F 79% 30.03 in 10.0 mi North 13.8 mph - N/A   Overcast
4:02 PM 33.8 °F 23.9 °F 28.4 °F 81% 30.05 in 9.0 mi North 15.0 mph - N/A   Overcast
4:28 PM 33.8 °F 23.5 °F 28.4 °F 81% 30.08 in 10.0 mi North 16.1 mph - N/A   Overcast
4:52 PM 33.1 °F 22.6 °F 27.0 °F 78% 30.11 in 10.0 mi North 16.1 mph - N/A   Overcast
5:52 PM 32.0 °F 21.2 °F 27.0 °F 82% 30.14 in 10.0 mi North 16.1 mph - N/A   Overcast
6:52 PM 32.0 °F 23.6 °F 26.1 °F 79% 30.16 in 10.0 mi North 10.4 mph - N/A   Overcast
7:06 PM 32.0 °F 22.5 °F 26.6 °F 80% 30.18 in 10.0 mi North 12.7 mph - N/A   Overcast
7:52 PM 32.0 °F 22.1 °F 25.0 °F 75% 30.19 in 10.0 mi North 13.8 mph - N/A   Mostly Cloudy
8:52 PM 32.0 °F 22.5 °F 25.0 °F 75% 30.25 in 10.0 mi North 12.7 mph - N/A   Overcast
9:52 PM 32.0 °F 23.0 °F 25.0 °F 75% 30.27 in 10.0 mi North 11.5 mph - N/A   Overcast
10:24 PM 30.2 °F 21.3 °F 24.8 °F 80% 30.28 in 10.0 mi North 10.4 mph - N/A   Overcast
10:52 PM 30.9 °F 21.2 °F 24.1 °F 76% 30.29 in 10.0 mi NNE 12.7 mph - N/A   Mostly Cloudy
11:52 PM 32.0 °F 22.5 °F 25.0 °F 75% 30.31 in 10.0 mi North 12.7 mph - N/A   Overcast