Weather History for Washington, DC

Monday, September 3, 2012 — View Current Weather Conditions
Monday, September 3, 2012
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Daily Weekly Monthly Custom
  Actual Average Record
Temperature
Mean Temperature 80 °F 75 °F  
Max Temperature 85 °F 84 °F 98 °F (1953)
Min Temperature 75 °F 67 °F 48 °F (1909)
Degree Days
Heating Degree Days 0 0  
Month to date heating degree days 0 0  
Since 1 July heating degree days 0 0  
Cooling Degree Days 15 10  
Month to date cooling degree days 48 32  
Year to date cooling degree days 1749 1343  
Growing Degree Days 30 (Base 50)    
Moisture
Dew Point 72 °F    
Average Humidity 78    
Maximum Humidity 94    
Minimum Humidity 61    
Precipitation
Precipitation T in 0.12 in 1.67 in (1974)
Month to date precipitation 1.69 0.33  
Year to date precipitation 20.40 26.73  
Snow
Snow 0.00 in 0.00 in - ()
Month to date snowfall 0.0 0.0  
Since 1 July snowfall 0.0 0.0  
Snow Depth 0.00 in    
Sea Level Pressure
Sea Level Pressure 30.04 in    
Wind
Wind Speed 7 mph (South)    
Max Wind Speed 17 mph    
Max Gust Speed 20 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary
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Local Photos
September Morn Lily
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Astronomy
Sep. 03, 2012 Rise Set
Actual Time 6:39 AM EDT 7:34 PM EDT
Civil Twilight 6:12 AM EDT 8:01 PM EDT
Nautical Twilight 5:39 AM EDT 8:33 PM EDT
Astronomical Twilight 5:06 AM EDT 9:07 PM EDT
Moon 8:55 PM EDT (9/3) 9:43 AM EDT (9/3)
Length Of Visible Light 13h 49m
Length of Day
12h 55m
Waning Gibbous, 90% of the Moon is Illuminated
Sep 3
Waning Gibbous
Sep 8
Last Quarter
Sep 15
New
Sep 22
First Quarter
Sep 29
Full
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Hourly Weather History & Observations
Time (EDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 75.9 °F - 73.0 °F 91% 30.02 in 10.0 mi Calm Calm - 0.00 in   Overcast
1:52 AM 77.0 °F - 73.0 °F 88% 30.02 in 10.0 mi ENE 6.9 mph - N/A   Overcast
2:52 AM 75.9 °F - 72.0 °F 87% 30.02 in 10.0 mi East 4.6 mph - N/A   Mostly Cloudy
3:52 AM 75.9 °F - 72.0 °F 87% 30.01 in 10.0 mi SE 5.8 mph - N/A   Mostly Cloudy
4:52 AM 75.2 °F - 71.6 °F 89% 30.01 in 10.0 mi SE 3.5 mph - N/A   Scattered Clouds
5:52 AM 75.9 °F - 71.1 °F 85% 30.03 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:52 AM 75.9 °F - 73.0 °F 91% 30.03 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:52 AM 77.0 °F - 72.0 °F 84% 30.05 in 10.0 mi Calm Calm - 0.00 in   Mostly Cloudy
8:31 AM 78.8 °F - 73.4 °F 83% 30.05 in 10.0 mi South 3.5 mph - N/A   Overcast
8:48 AM 78.8 °F - 73.4 °F 83% 30.06 in 10.0 mi South 3.5 mph - N/A   Overcast
8:52 AM 78.1 °F - 73.0 °F 84% 30.06 in 10.0 mi South 4.6 mph - N/A   Overcast
8:54 AM 78.8 °F - 73.4 °F 83% 30.06 in 10.0 mi Calm Calm - N/A   Overcast
9:28 AM 78.8 °F - 73.4 °F 83% 30.06 in 10.0 mi South 4.6 mph - N/A   Overcast
9:35 AM 78.8 °F - 73.4 °F 83% 30.06 in 10.0 mi SSW 4.6 mph - N/A   Overcast
9:52 AM 79.0 °F - 73.9 °F 84% 30.06 in 10.0 mi South 5.8 mph - N/A   Mostly Cloudy
10:04 AM 78.8 °F - 73.4 °F 83% 30.06 in 10.0 mi South 5.8 mph - N/A   Overcast
10:52 AM 82.0 °F 87.9 °F 73.9 °F 76% 30.06 in 10.0 mi South 9.2 mph - N/A   Overcast
11:52 AM 82.9 °F 87.5 °F 71.1 °F 67% 30.06 in 10.0 mi South 11.5 mph - N/A   Overcast
12:52 PM 84.0 °F 88.4 °F 70.0 °F 63% 30.05 in 10.0 mi South 12.7 mph - N/A   Overcast
1:52 PM 84.0 °F 89.0 °F 71.1 °F 65% 30.05 in 10.0 mi South 10.4 mph - N/A   Overcast
2:49 PM 82.4 °F 87.2 °F 71.6 °F 70% 30.03 in 10.0 mi South 11.5 mph - N/A   Mostly Cloudy
2:52 PM 82.0 °F 86.7 °F 72.0 °F 71% 30.03 in 10.0 mi South 12.7 mph - N/A   Mostly Cloudy
2:58 PM 82.4 °F 87.2 °F 71.6 °F 70% 30.03 in 10.0 mi South 12.7 mph - N/A   Mostly Cloudy
3:52 PM 82.9 °F 87.5 °F 71.1 °F 67% 30.03 in 10.0 mi South 9.2 mph - N/A   Mostly Cloudy
4:52 PM 82.9 °F 87.5 °F 71.1 °F 67% 30.02 in 10.0 mi South 9.2 mph - N/A   Mostly Cloudy
5:52 PM 82.9 °F 88.0 °F 72.0 °F 69% 30.01 in 10.0 mi SSE 5.8 mph - N/A   Mostly Cloudy
6:52 PM 82.0 °F 85.9 °F 70.0 °F 67% 30.00 in 10.0 mi SSE 6.9 mph - N/A   Mostly Cloudy
7:52 PM 81.0 °F 84.9 °F 71.1 °F 72% 30.01 in 10.0 mi SSE 8.1 mph - N/A   Mostly Cloudy
8:52 PM 80.1 °F 83.6 °F 71.1 °F 74% 30.02 in 10.0 mi South 5.8 mph - N/A   Mostly Cloudy
9:52 PM 80.1 °F 83.8 °F 72.0 °F 76% 30.04 in 10.0 mi SSE 4.6 mph - N/A   Mostly Cloudy
10:52 PM 79.0 °F - 73.9 °F 84% 30.04 in 10.0 mi SSE 5.8 mph - N/A   Overcast
11:52 PM 79.0 °F - 73.0 °F 82% 30.04 in 10.0 mi South 10.4 mph - N/A   Overcast
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