Weather History for KDCA - May, 2008

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Tuesday, May 27, 2008

  Actual Average Record
Temperature  
Mean Temperature 76 °F 69 °F  
Max Temperature 83 °F 78 °F 95 °F (1965)
Min Temperature 69 °F 60 °F 42 °F (1915)
Degree Days  
Heating Degree Days 0 1  
Month to date heating degree days 67 75  
Since 1 July heating degree days 3463 4021  
Cooling Degree Days 11 5  
Month to date cooling degree days 46 83  
Year to date cooling degree days 75 109  
Growing Degree Days 26 (Base 50)    
Moisture  
Dew Point 64 °F    
Average Humidity 70    
Maximum Humidity 79    
Minimum Humidity 60    
Precipitation  
Precipitation T in 0.13 in 1.50 in (1885)
Month to date precipitation 9.21 3.47  
Year to date precipitation 22.47 15.44  
Snow  
Snow 0.00 in 0.00 in - ()
Month to date snowfall 0.0 0.0  
Since 1 July snowfall 4.9 15.4  
Snow Depth 0.00 in    
Sea Level Pressure  
Sea Level Pressure 29.91 in    
Wind  
Wind Speed 8 mph (SSW)    
Max Wind Speed 23 mph    
Max Gust Speed 26 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

May. 27, 2008 Rise Set
Actual Time 5:46 AM EDT 8:24 PM EDT
Civil Twilight 5:15 AM EDT 8:55 PM EDT
Nautical Twilight 4:37 AM EDT 9:34 PM EDT
Astronomical Twilight 3:53 AM EDT 10:17 PM EDT
Moon 1:20 AM EDT (5/27) 12:23 PM EDT (5/27)
Length of Visible Light 15h 39m
Length of Day
14h 37m
Waning Gibbous, 55% of the Moon is Illuminated
May 27
Waning Gibbous
May 27
Last Quarter
Jun 3
New
Jun 10
First Quarter
Jun 18
Full

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 75.0 °F - 60.1 °F 60% 29.89 in 10.0 mi South 10.4 mph - N/A   Mostly Cloudy
1:52 AM 73.9 °F - 60.1 °F 62% 29.89 in 10.0 mi SW 6.9 mph - N/A   Mostly Cloudy
2:52 AM 73.0 °F - 60.1 °F 64% 29.88 in 10.0 mi South 5.8 mph - N/A   Mostly Cloudy
3:52 AM 71.1 °F - 62.1 °F 73% 29.88 in 10.0 mi South 9.2 mph - 0.00 in Rain Light Rain
4:52 AM 70.0 °F - 62.1 °F 76% 29.89 in 10.0 mi South 8.1 mph - 0.00 in Rain Light Rain
5:52 AM 69.1 °F - 62.1 °F 78% 29.91 in 10.0 mi South 6.9 mph - 0.00 in   Overcast
6:52 AM 70.0 °F - 61.0 °F 73% 29.92 in 10.0 mi South 8.1 mph - N/A   Overcast
7:52 AM 70.0 °F - 61.0 °F 73% 29.93 in 10.0 mi South 8.1 mph - 0.00 in   Overcast
8:52 AM 73.0 °F - 61.0 °F 66% 29.94 in 10.0 mi South 8.1 mph - N/A   Overcast
9:52 AM 71.1 °F - 62.1 °F 73% 29.94 in 10.0 mi South 8.1 mph - 0.00 in Rain Light Rain
10:52 AM 72.0 °F - 63.0 °F 73% 29.94 in 9.0 mi South 8.1 mph - 0.00 in   Overcast
11:52 AM 75.9 °F - 64.9 °F 69% 29.95 in 8.0 mi SSE 4.6 mph - N/A   Overcast
12:52 PM 77.0 °F - 66.0 °F 69% 29.93 in 9.0 mi South 8.1 mph - N/A   Overcast
1:52 PM 78.1 °F - 66.0 °F 66% 29.92 in 8.0 mi South 12.7 mph - N/A   Overcast
2:52 PM 82.9 °F 84.4 °F 64.0 °F 53% 29.91 in 10.0 mi West 6.9 mph - 0.00 in Rain Light Rain
3:52 PM 79.0 °F - 68.0 °F 69% 29.90 in 9.0 mi South 6.9 mph - 0.00 in   Overcast
4:52 PM 81.0 °F 83.0 °F 66.0 °F 60% 29.90 in 10.0 mi WSW 9.2 mph - N/A   Mostly Cloudy
5:52 PM 81.0 °F 83.0 °F 66.0 °F 60% 29.89 in 10.0 mi West 11.5 mph - 0.00 in   Mostly Cloudy
6:52 PM 81.0 °F 83.0 °F 66.0 °F 60% 29.89 in 10.0 mi WSW 10.4 mph - N/A   Mostly Cloudy
7:52 PM 80.1 °F 82.1 °F 66.0 °F 62% 29.88 in 10.0 mi SW 6.9 mph - N/A   Mostly Cloudy
8:52 PM 78.1 °F - 64.9 °F 64% 29.90 in 10.0 mi SW 5.8 mph - N/A   Mostly Cloudy
9:52 PM 73.9 °F - 66.0 °F 76% 29.93 in 10.0 mi SSW 4.6 mph - N/A   Mostly Cloudy
10:52 PM 73.0 °F - 66.0 °F 79% 29.94 in 10.0 mi SSW 5.8 mph - N/A   Mostly Cloudy
11:52 PM 77.0 °F - 66.0 °F 69% 29.96 in 10.0 mi NW 6.9 mph - N/A   Overcast