Weather History for KDCA - July, 2009

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Tuesday, July 14, 2009

  Actual Average Record
Temperature  
Mean Temperature 75 °F 80 °F  
Max Temperature 85 °F 89 °F 100 °F (1954)
Min Temperature 64 °F 71 °F 55 °F (1904)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 0 0  
Since 1 June heating degree days 5 6  
Since 1 July heating degree days 0 0  
Cooling Degree Days 10 15  
Month to date cooling degree days 136 205  
Year to date cooling degree days 538 653  
Since 1 June cooling degree days 408 519  
Growing Degree Days 23 (Base 50)    
Moisture  
Dew Point 45 °F    
Average Humidity 39    
Maximum Humidity 56    
Minimum Humidity 22    
Precipitation  
Precipitation 0.00 in 0.13 in 2.93 in (1912)
Month to date precipitation 0.13 1.73  
Year to date precipitation 23.26 21.47  
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 30.08 in    
Wind  
Wind Speed 8 mph (NNW)    
Max Wind Speed 17 mph    
Max Gust Speed 24 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jul. 14, 2009 Rise Set
Actual Time 5:54 AM EDT 8:33 PM EDT
Civil Twilight 5:23 AM EDT 9:04 PM EDT
Nautical Twilight 4:44 AM EDT 9:42 PM EDT
Astronomical Twilight 4:00 AM EDT 10:26 PM EDT
Moon 11:59 PM EDT (7/14) 12:52 PM EDT (7/14)
Length of Visible Light 15h 40m
Length of Day
14h 38m
Waning Gibbous, 58% of the Moon is Illuminated
Jul 14
Waning Gibbous
Jul 15
Last Quarter
Jul 21
New
Jul 28
First Quarter
Aug 5
Full

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:52 AM 73.0 °F 48.0 °F 41% 30.00 in 10.0 mi North 11.5 mph - N/A   Scattered Clouds
1:52 AM 72.0 °F 48.0 °F 43% 30.01 in 10.0 mi NNE 8.1 mph - N/A   Mostly Cloudy
2:52 AM 70.0 °F 48.0 °F 46% 30.02 in 10.0 mi North 9.2 mph - N/A   Scattered Clouds
3:52 AM 66.9 °F 46.9 °F 49% 30.02 in 10.0 mi NW 5.8 mph - N/A   Partly Cloudy
4:52 AM 64.9 °F 46.9 °F 52% 30.03 in 10.0 mi NNW 10.4 mph - N/A   Partly Cloudy
5:52 AM 64.9 °F 46.0 °F 50% 30.06 in 10.0 mi NNW 11.5 mph - N/A   Mostly Cloudy
6:52 AM 64.9 °F 48.0 °F 54% 30.08 in 10.0 mi NNW 9.2 mph - N/A   Scattered Clouds
7:52 AM 68.0 °F 46.9 °F 47% 30.09 in 10.0 mi NNW 8.1 mph - N/A   Partly Cloudy
8:52 AM 72.0 °F 46.0 °F 40% 30.11 in 10.0 mi NNW 9.2 mph - N/A   Clear
9:52 AM 77.0 °F 45.0 °F 32% 30.11 in 10.0 mi North 9.2 mph - N/A   Clear
10:52 AM 78.1 °F 43.0 °F 29% 30.12 in 10.0 mi WNW 9.2 mph - N/A   Partly Cloudy
11:52 AM 80.1 °F 39.0 °F 23% 30.11 in 10.0 mi NNE 9.2 mph 18.4 mph N/A   Scattered Clouds
12:52 PM 82.0 °F 39.9 °F 22% 30.12 in 10.0 mi North 11.5 mph - N/A   Scattered Clouds
1:52 PM 82.9 °F 43.0 °F 24% 30.10 in 10.0 mi North 6.9 mph - N/A   Mostly Cloudy
2:52 PM 82.0 °F 39.9 °F 22% 30.09 in 10.0 mi Variable 6.9 mph - N/A   Mostly Cloudy
3:52 PM 82.9 °F 39.9 °F 22% 30.08 in 10.0 mi NNE 6.9 mph - N/A   Mostly Cloudy
4:52 PM 82.9 °F 43.0 °F 24% 30.07 in 10.0 mi North 10.4 mph - N/A   Mostly Cloudy
5:52 PM 82.9 °F 44.1 °F 25% 30.08 in 10.0 mi WSW 8.1 mph 23.0 mph N/A   Mostly Cloudy
6:52 PM 82.0 °F 46.0 °F 28% 30.09 in 10.0 mi North 8.1 mph - N/A   Scattered Clouds
7:52 PM 79.0 °F 46.0 °F 31% 30.09 in 10.0 mi NNW 4.6 mph - N/A   Scattered Clouds
8:52 PM 77.0 °F 46.0 °F 33% 30.10 in 10.0 mi North 4.6 mph - N/A   Mostly Cloudy
9:52 PM 78.1 °F 46.0 °F 32% 30.12 in 10.0 mi Calm Calm - N/A   Scattered Clouds
10:52 PM 72.0 °F 52.0 °F 49% 30.12 in 10.0 mi SSW 5.8 mph - N/A   Mostly Cloudy
11:52 PM 71.1 °F 53.1 °F 53% 30.14 in 9.0 mi South 5.8 mph - N/A   Mostly Cloudy