Weather History for Washington, DC

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Monday, February 23, 1987

  Actual Average Record
Temperature  
Mean Temperature 38 °F 41 °F  
Max Temperature 44 °F 49 °F 78 °F (1874)
Min Temperature 33 °F 32 °F 11 °F (1907)
Degree Days  
Heating Degree Days 26 24  
Month to date heating degree days 609  
Since 1 July heating degree days 2989  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 0  
Moisture  
Dew Point 30 °F    
Average Humidity 76    
Maximum Humidity 100    
Minimum Humidity 51    
Precipitation  
Precipitation 0.78 in 0.10 in 1.34 in (1994)
Month to date precipitation 2.16  
Year to date precipitation 4.97  
Snow  
Snow 0.00 in 0.10 in 6.90 in (1987)
Month to date snowfall 4.9  
Since 1 July snowfall 13.3  
Snow Depth 9.00 in    
Sea Level Pressure  
Sea Level Pressure 29.81 in    
Wind  
Wind Speed 13 mph (NNW)    
Max Wind Speed 28 mph    
Max Gust Speed 38 mph    
Visibility 6 miles    
Events Fog , Rain , Snow , Thunderstorm    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Feb. 23, 1987 Rise Set
Actual Time 6:49 AM EST 5:54 PM EST
Civil Twilight 6:22 AM EST 6:21 PM EST
Nautical Twilight 5:51 AM EST 6:52 PM EST
Astronomical Twilight 5:20 AM EST 7:22 PM EST
Moon 3:44 AM EST (2/23) 12:38 PM EST (2/23)
Length of Visible Light 11h 58m
Length of Day
11h 04m
Waning Crescent, 24% of the Moon is Illuminated
Feb 23
Waning Crescent
Feb 27
New
Mar 7
First Quarter
Mar 15
Full
Mar 22
Last Quarter

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:00 AM 33.1 °F 24.4 °F 33.1 °F 100% 29.70 in 0.3 mi NE 11.5 mph - 0.19 in Fog , Snow Snow
1:00 AM 33.1 °F 24.9 °F 33.1 °F 100% 29.64 in 0.4 mi NNE 10.4 mph - 0.23 in Fog , Snow Snow
2:00 AM 33.1 °F 23.9 °F 32.0 °F 96% 29.61 in 0.6 mi North 12.7 mph - 0.19 in Fog , Snow Light Snow
3:21 AM - - - N/A% 29.59 in 2.8 mi North 10.4 mph - N/A Fog Unknown
4:00 AM 33.1 °F 24.4 °F 33.1 °F 100% 29.59 in 0.4 mi North 11.5 mph - 0.18 in Fog , Snow Snow
5:00 AM 33.1 °F 23.9 °F 32.0 °F 96% 29.61 in 0.4 mi NW 12.7 mph - 0.14 in Fog , Snow Snow
5:18 AM - - - N/A% 29.62 in 5.5 mi NNW 11.5 mph - N/A Fog Unknown
5:31 AM - - - N/A% 29.63 in 10.5 mi NNW 11.5 mph - N/A Fog Unknown
6:00 AM 33.1 °F 24.4 °F 32.0 °F 96% 29.65 in 3.0 mi NNW 11.5 mph - 0.02 in Fog , Rain , Thunderstorm Thunderstorms and Rain
6:14 AM - - - N/A% 29.67 in 4.0 mi NNW 11.5 mph - N/A Fog Unknown
6:33 AM - - - N/A% 29.68 in 5.0 mi NNW 17.3 mph - N/A Fog Unknown
7:00 AM 34.0 °F 23.0 °F 32.0 °F 92% 29.69 in 7.0 mi NNW 18.4 mph - 0.02 in   Mostly Cloudy
8:00 AM 34.0 °F 23.8 °F 31.1 °F 89% 29.74 in 9.0 mi North 16.1 mph - N/A   Scattered Clouds
9:00 AM 34.0 °F 23.0 °F 32.0 °F 92% 29.69 in 7.0 mi NNW 18.4 mph - N/A   Scattered Clouds
10:00 AM 37.0 °F 27.0 °F 31.1 °F 79% 29.84 in 10.0 mi NW 18.4 mph 23.0 mph N/A   Overcast
11:00 AM 37.9 °F 30.0 °F 31.1 °F 76% 29.88 in 6.0 mi NW 12.7 mph - N/A   Overcast
12:00 PM 39.0 °F 35.7 °F 32.0 °F 76% 29.90 in 7.0 mi West 4.6 mph - N/A   Mostly Cloudy
1:00 PM 44.1 °F 36.2 °F 32.0 °F 63% 29.90 in 7.0 mi NW 18.4 mph 24.2 mph N/A   Scattered Clouds
2:00 PM 44.1 °F 36.2 °F 30.2 °F 58% 29.91 in 8.0 mi NW 18.4 mph 27.6 mph N/A   Scattered Clouds
3:00 PM 44.1 °F 34.4 °F 27.1 °F 51% 29.94 in 9.0 mi NW 27.6 mph 38.0 mph N/A   Scattered Clouds
4:00 PM 43.0 °F 33.8 °F 28.2 °F 56% 29.98 in 10.0 mi NW 23.0 mph 32.2 mph N/A   Mostly Cloudy
6:00 PM 42.1 °F 34.9 °F 27.1 °F 55% 30.05 in 10.0 mi NNW 13.8 mph - N/A   Scattered Clouds
7:00 PM 41.0 °F 35.2 °F 26.1 °F 55% 30.10 in 10.0 mi NW 9.2 mph - N/A   Scattered Clouds
9:00 PM 39.9 °F 32.5 °F 25.2 °F 56% 30.14 in 10.0 mi NW 12.7 mph - N/A   Clear
10:00 PM 39.0 °F 34.0 °F 25.2 °F 58% 30.15 in 10.0 mi NNW 6.9 mph - N/A   Clear
11:00 PM 39.0 °F 32.3 °F 25.2 °F 58% 30.17 in 10.0 mi NW 10.4 mph - N/A   Clear