Weather History for KDCA - September, 2013

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Sunday, September 8, 2013

  Actual Average Record
Temperature  
Mean Temperature 80 °F 74 °F  
Max Temperature 91 °F 82 °F 100 °F (1939)
Min Temperature 69 °F 65 °F 52 °F (1988)
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 9  
Month to date cooling degree days 99 80  
Year to date cooling degree days 1529 1391  
Growing Degree Days 30 (Base 50)    
Moisture  
Dew Point 62 °F    
Average Humidity 58    
Maximum Humidity 78    
Minimum Humidity 38    
Precipitation  
Precipitation T in 0.12 in 2.93 in (1969)
Month to date precipitation 0.12 0.88  
Year to date precipitation 28.44 27.28  
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 29.94 in    
Wind  
Wind Speed 7 mph (North)    
Max Wind Speed 18 mph    
Max Gust Speed 23 mph    
Visibility 10 miles    
Events Rain    
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Sep. 08, 2013 Rise Set
Actual Time 6:43 AM EDT 7:27 PM EDT
Civil Twilight 6:16 AM EDT 7:54 PM EDT
Nautical Twilight 5:44 AM EDT 8:25 PM EDT
Astronomical Twilight 5:11 AM EDT 8:58 PM EDT
Moon 9:56 AM EDT (9/8) 9:03 PM EDT (9/8)
Length of Visible Light 13h 37m
Length of Day
12h 43m
Waxing Crescent, 11% of the Moon is Illuminated
Sep 8
Waxing Crescent
Sep 12
First Quarter
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New

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 70.0 °F - 63.0 °F 78% 29.95 in 10.0 mi SW 5.8 mph - N/A   Scattered Clouds
1:52 AM 69.1 °F - 63.0 °F 81% 29.94 in 10.0 mi SSW 5.8 mph - N/A   Mostly Cloudy
2:52 AM 69.1 °F - 62.1 °F 78% 29.94 in 10.0 mi SSW 4.6 mph - N/A   Overcast
3:52 AM 69.1 °F - 62.1 °F 78% 29.94 in 10.0 mi Calm Calm - N/A   Overcast
4:52 AM 69.1 °F - 63.0 °F 81% 29.93 in 10.0 mi Calm Calm - 0.00 in Rain Light Rain
5:52 AM 69.1 °F - 63.0 °F 81% 29.93 in 10.0 mi Calm Calm - 0.00 in   Overcast
6:52 AM 70.0 °F - 61.0 °F 73% 29.94 in 10.0 mi SSW 4.6 mph - N/A   Overcast
7:52 AM 72.0 °F - 60.1 °F 66% 29.94 in 10.0 mi SW 3.5 mph - N/A   Mostly Cloudy
8:52 AM 73.9 °F - 57.9 °F 57% 29.93 in 10.0 mi Calm Calm - N/A   Scattered Clouds
9:52 AM 77.0 °F - 61.0 °F 58% 29.92 in 10.0 mi South 5.8 mph - N/A   Scattered Clouds
10:52 AM 82.9 °F 83.7 °F 62.1 °F 49% 29.92 in 10.0 mi East 3.5 mph - N/A   Scattered Clouds
11:52 AM 86.0 °F 85.7 °F 60.1 °F 41% 29.92 in 10.0 mi NNW 10.4 mph - N/A   Scattered Clouds
12:52 PM 88.0 °F 87.9 °F 61.0 °F 40% 29.90 in 10.0 mi NNW 9.2 mph - N/A   Scattered Clouds
1:52 PM 88.0 °F 87.1 °F 59.0 °F 37% 29.90 in 10.0 mi NNW 9.2 mph 18.4 mph N/A   Mostly Cloudy
2:52 PM 90.0 °F 90.0 °F 61.0 °F 38% 29.89 in 10.0 mi NW 12.7 mph - N/A   Mostly Cloudy
3:52 PM 89.1 °F 89.3 °F 62.1 °F 40% 29.89 in 10.0 mi NW 11.5 mph - N/A   Mostly Cloudy
4:52 PM 90.0 °F 90.6 °F 63.0 °F 40% 29.89 in 10.0 mi Variable 6.9 mph - N/A   Mostly Cloudy
5:52 PM 87.1 °F 87.8 °F 63.0 °F 44% 29.90 in 10.0 mi NNE 10.4 mph - N/A   Partly Cloudy
6:52 PM 84.0 °F 85.4 °F 64.0 °F 51% 29.92 in 10.0 mi North 12.7 mph - N/A   Mostly Cloudy
7:52 PM 82.9 °F 84.4 °F 64.0 °F 53% 29.94 in 10.0 mi NNE 11.5 mph - N/A   Overcast
8:52 PM 81.0 °F 82.5 °F 64.0 °F 56% 29.98 in 10.0 mi NE 8.1 mph - N/A   Mostly Cloudy
9:52 PM 79.0 °F - 64.0 °F 60% 30.00 in 10.0 mi NE 11.5 mph - N/A   Scattered Clouds
10:52 PM 77.0 °F - 62.1 °F 60% 30.03 in 10.0 mi NE 10.4 mph - N/A   Scattered Clouds
11:52 PM 75.0 °F - 57.9 °F 55% 30.05 in 10.0 mi NE 11.5 mph - N/A   Scattered Clouds