Weather History for Washington, DC

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Thursday, April 12, 2007

  Actual Average Record
Temperature  
Mean Temperature 53 °F 56 °F  
Max Temperature 61 °F 66 °F 90 °F (1977)
Min Temperature 45 °F 46 °F 24 °F (1874)
Degree Days  
Heating Degree Days 12 10  
Month to date heating degree days 208 138  
Since 1 July heating degree days 3769 3814  
Cooling Degree Days 0 1  
Month to date cooling degree days 2 3  
Year to date cooling degree days 7 5  
Growing Degree Days 2 (Base 50)    
Moisture  
Dew Point 44 °F    
Average Humidity 73    
Maximum Humidity 100    
Minimum Humidity 46    
Precipitation  
Precipitation 0.74 in 0.10 in 1.99 in (1913)
Month to date precipitation 1.40 1.29  
Year to date precipitation 9.27 10.20  
Snow  
Snow 0.00 in 0.00 in 2.00 in (1918)
Month to date snowfall 0.4 0.0  
Since 1 July snowfall 9.5 15.4  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.72 in    
Wind  
Wind Speed 10 mph (NNE)    
Max Wind Speed 25 mph    
Max Gust Speed 36 mph    
Visibility 7 miles    
Events Rain , Thunderstorm    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Apr. 12, 2007 Rise Set
Actual Time 6:36 AM EDT 7:41 PM EDT
Civil Twilight 6:09 AM EDT 8:09 PM EDT
Nautical Twilight 5:36 AM EDT 8:42 PM EDT
Astronomical Twilight 5:02 AM EDT 9:16 PM EDT
Moon 3:55 AM EDT (4/12) 2:06 PM EDT (4/12)
Length of Visible Light 14h 00m
Length of Day
13h 05m
Waning Crescent, 30% of the Moon is Illuminated
Apr 12
Waning Crescent
Apr 17
New
Apr 24
First Quarter
May 2
Full
May 10
Last Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 44.1 °F 37.4 °F 41.0 °F 89% 29.85 in 4.0 mi East 13.8 mph 20.7 mph 0.17 in Rain Light Rain
1:52 AM 45.0 °F 39.7 °F 42.1 °F 90% 29.80 in 6.0 mi ENE 10.4 mph - 0.01 in Rain Light Rain
2:15 AM 44.6 °F 39.7 °F 42.8 °F 93% 29.78 in 5.0 mi East 9.2 mph - 0.01 in Rain Light Rain
2:20 AM 44.6 °F 39.2 °F 42.8 °F 93% 29.77 in 2.5 mi East 10.4 mph - 0.03 in Rain Heavy Rain
2:31 AM 46.4 °F 41.5 °F 42.8 °F 87% 29.75 in 4.0 mi ENE 10.4 mph - 0.08 in Rain Light Rain
2:40 AM 46.4 °F 41.1 °F 44.6 °F 93% 29.74 in 3.0 mi East 11.5 mph - 0.12 in Rain Rain
2:52 AM 46.9 °F - 44.1 °F 90% 29.73 in 5.0 mi East 8.1 mph - 0.13 in Rain Light Rain
3:22 AM 46.4 °F 43.5 °F 44.6 °F 93% 29.74 in 2.5 mi East 5.8 mph - 0.12 in Rain Rain
3:30 AM 46.4 °F 43.5 °F 44.6 °F 93% 29.73 in 5.0 mi East 5.8 mph - 0.13 in Rain Light Rain
3:52 AM 46.0 °F 43.9 °F 45.0 °F 96% 29.72 in 3.0 mi NNE 4.6 mph - 0.16 in Rain Rain
4:03 AM 46.4 °F 43.5 °F 46.4 °F 100% 29.73 in 2.5 mi NNE 5.8 mph - 0.07 in Rain Rain
4:09 AM 46.4 °F 42.4 °F 46.4 °F 100% 29.74 in 3.0 mi NW 8.1 mph - 0.09 in Rain Light Rain
4:14 AM 46.4 °F 43.5 °F 46.4 °F 100% 29.73 in 2.5 mi NNW 5.8 mph - 0.10 in Rain Rain
4:31 AM 46.4 °F 43.5 °F 46.4 °F 100% 29.72 in 3.0 mi North 5.8 mph - 0.20 in Rain Light Rain
4:38 AM 46.4 °F 41.9 °F 46.4 °F 100% 29.71 in 4.0 mi ENE 9.2 mph - 0.20 in Rain Light Rain
4:52 AM 46.9 °F - 46.0 °F 97% 29.71 in 3.0 mi NE 6.9 mph - 0.22 in Rain Rain
4:57 AM 46.4 °F 40.1 °F 46.4 °F 100% 29.74 in 4.0 mi WNW 15.0 mph - 0.01 in Rain Light Rain
5:07 AM 48.2 °F - 46.4 °F 93% 29.76 in 2.5 mi WNW 13.8 mph - 0.04 in Rain Heavy Rain
5:23 AM 46.4 °F 41.1 °F 46.4 °F 100% 29.74 in 4.0 mi NNW 11.5 mph - 0.11 in Rain Rain
5:52 AM 46.0 °F 40.6 °F 45.0 °F 96% 29.73 in 5.0 mi NNW 11.5 mph - 0.12 in Rain Light Rain
6:09 AM 46.4 °F 40.7 °F 44.6 °F 93% 29.71 in 6.0 mi NNE 12.7 mph - 0.00 in Rain Light Rain
6:52 AM 46.0 °F 40.6 °F 44.1 °F 93% 29.70 in 10.0 mi NE 11.5 mph - 0.01 in   Overcast
7:15 AM 46.4 °F 41.5 °F 44.6 °F 93% 29.71 in 10.0 mi North 10.4 mph - N/A   Overcast
7:33 AM 46.4 °F 42.9 °F 44.6 °F 93% 29.72 in 10.0 mi North 6.9 mph - N/A   Overcast
7:34 AM 46.4 °F 42.9 °F 44.6 °F 93% 29.72 in 10.0 mi NNW 6.9 mph - N/A   Overcast
7:52 AM 46.9 °F - 45.0 °F 93% 29.72 in 10.0 mi NNW 10.4 mph - N/A   Overcast
8:48 AM 48.2 °F - 44.6 °F 87% 29.71 in 10.0 mi North 8.1 mph - N/A   Overcast
8:52 AM 48.0 °F - 45.0 °F 89% 29.70 in 10.0 mi North 8.1 mph - N/A   Overcast
9:52 AM 48.9 °F - 45.0 °F 86% 29.70 in 10.0 mi ENE 5.8 mph - N/A   Overcast
10:52 AM 50.0 °F - 46.0 °F 86% 29.70 in 9.0 mi NE 3.5 mph - N/A   Overcast
11:52 AM 51.1 °F - 46.0 °F 83% 29.69 in 10.0 mi WNW 5.8 mph - N/A   Overcast
12:35 PM 53.6 °F - 46.4 °F 77% 29.67 in 10.0 mi ENE 4.6 mph - N/A   Mostly Cloudy
12:52 PM 53.1 °F - 46.9 °F 80% 29.66 in 10.0 mi East 3.5 mph - N/A   Mostly Cloudy
1:08 PM 55.4 °F - 46.4 °F 72% 29.66 in 10.0 mi ENE 4.6 mph - N/A   Scattered Clouds
1:52 PM 55.9 °F - 46.9 °F 72% 29.65 in 10.0 mi ENE 4.6 mph - N/A   Scattered Clouds
2:52 PM 61.0 °F - 48.0 °F 62% 29.64 in 10.0 mi ENE 4.6 mph - N/A   Mostly Cloudy
3:52 PM 59.0 °F - 48.0 °F 67% 29.65 in 10.0 mi NW 13.8 mph - 0.00 in Rain Light Rain
4:02 PM 53.6 °F - 48.2 °F 82% 29.63 in 8.0 mi North 15.0 mph 35.7 mph 0.05 in Rain , Thunderstorm Heavy Thunderstorms and Rain
4:09 PM 53.6 °F - 48.2 °F 82% 29.64 in 9.0 mi North 5.8 mph 19.6 mph 0.06 in Rain , Thunderstorm Light Thunderstorms and Rain
4:21 PM 53.6 °F - 48.2 °F 82% 29.65 in 10.0 mi Calm Calm - 0.09 in Rain , Thunderstorm Light Thunderstorms and Rain
4:39 PM 55.4 °F - 48.2 °F 77% 29.65 in 10.0 mi SSE 3.5 mph - 0.09 in Rain Light Rain
4:52 PM 57.0 °F - 50.0 °F 77% 29.65 in 10.0 mi Variable 3.5 mph - 0.09 in   Mostly Cloudy
5:52 PM 57.9 °F - 44.1 °F 60% 29.68 in 10.0 mi NW 20.7 mph 26.5 mph N/A   Mostly Cloudy
6:52 PM 55.9 °F - 43.0 °F 62% 29.72 in 10.0 mi NNW 10.4 mph 19.6 mph N/A   Mostly Cloudy
7:52 PM 55.0 °F - 37.0 °F 51% 29.75 in 10.0 mi NW 21.9 mph 28.8 mph N/A   Scattered Clouds
8:52 PM 53.1 °F - 35.1 °F 50% 29.79 in 10.0 mi NW 15.0 mph 21.9 mph N/A   Partly Cloudy
9:52 PM 53.1 °F - 33.1 °F 47% 29.84 in 10.0 mi NW 16.1 mph 27.6 mph N/A   Scattered Clouds
10:52 PM 51.1 °F - 33.1 °F 50% 29.84 in 10.0 mi NW 15.0 mph 21.9 mph N/A   Partly Cloudy
11:52 PM 50.0 °F - 33.1 °F 52% 29.85 in 10.0 mi NW 11.5 mph 21.9 mph N/A   Partly Cloudy