Weather History for Leesburg, VA

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Thursday, July 18, 2013

  Actual Average (KIAD) Record (KIAD)
Temperature  
Mean Temperature 84 °F 77 °F  
Max Temperature 96 °F 88 °F 101 °F (2012)
Min Temperature 73 °F 66 °F 51 °F (1985)
Degree Days  
Heating Degree Days 0 0  
Month to date heating degree days 0  
Since 1 June heating degree days 15  
Since 1 July heating degree days 0  
Cooling Degree Days 20 12  
Month to date cooling degree days 211  
Year to date cooling degree days 540  
Since 1 June cooling degree days 448  
Growing Degree Days 34 (Base 50)    
Moisture  
Dew Point 77 °F    
Average Humidity 76    
Maximum Humidity 100    
Minimum Humidity 53    
Precipitation  
Precipitation 0.00 in 0.12 in 0.92 in (1965)
Month to date precipitation 2.13  
Year to date precipitation 22.93  
Snow  
Snow 0.00 in 0.00 in - ()
Month to date snowfall 0.0  
Since 1 July snowfall 0.0  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 30.10 in    
Wind  
Wind Speed 3 mph (WNW)    
Max Wind Speed 9 mph    
Max Gust Speed -    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Jul. 18, 2013 Rise Set
Actual Time 5:59 AM EDT 8:33 PM EDT
Civil Twilight 5:28 AM EDT 9:04 PM EDT
Nautical Twilight 4:49 AM EDT 9:42 PM EDT
Astronomical Twilight 4:06 AM EDT 10:25 PM EDT
Moon 4:28 PM EDT (7/18) 1:47 AM EDT (7/18)
Length of Visible Light 15h 36m
Length of Day
14h 34m
Waxing Gibbous, 77% of the Moon is Illuminated
Jul 18
Waxing Gibbous
Jul 22
Full
Jul 29
Last Quarter
Aug 6
New
Aug 14
First Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 80.6 °F 86.2 °F 75.2 °F 84% 30.14 in 10.0 mi Calm Calm - N/A   Clear
12:35 AM 80.6 °F 87.1 °F 77.0 °F 89% 30.14 in 10.0 mi Calm Calm - N/A   Clear
12:55 AM 77.0 °F - 75.2 °F 94% 30.14 in 10.0 mi West 3.5 mph - N/A   Clear
1:15 AM 77.0 °F - 75.2 °F 94% 30.14 in 10.0 mi West 4.6 mph - N/A   Clear
1:35 AM 77.0 °F - 75.2 °F 94% 30.14 in 10.0 mi West 3.5 mph - N/A   Clear
1:55 AM 77.0 °F - 75.2 °F 94% 30.14 in 10.0 mi Calm Calm - N/A   Clear
2:15 AM 77.0 °F - 75.2 °F 94% 30.13 in 10.0 mi Calm Calm - N/A   Clear
2:35 AM 77.0 °F - 75.2 °F 94% 30.12 in 10.0 mi Calm Calm - N/A   Clear
2:55 AM 77.0 °F - 75.2 °F 94% 30.12 in 10.0 mi Calm Calm - N/A   Clear
3:15 AM 77.0 °F - 73.4 °F 89% 30.11 in 10.0 mi West 3.5 mph - N/A   Clear
3:35 AM 77.0 °F - 75.2 °F 94% 30.12 in 10.0 mi WSW 3.5 mph - N/A   Clear
3:55 AM 77.0 °F - 75.2 °F 94% 30.11 in 10.0 mi Calm Calm - N/A   Clear
4:15 AM 75.2 °F - 75.2 °F 100% 30.11 in 10.0 mi Calm Calm - N/A   Clear
4:35 AM 77.0 °F - 73.4 °F 89% 30.11 in 10.0 mi Calm Calm - N/A   Clear
4:55 AM 75.2 °F - 73.4 °F 94% 30.12 in 7.0 mi Calm Calm - N/A   Clear
5:15 AM 73.4 °F - 73.4 °F 100% 30.12 in 7.0 mi Calm Calm - N/A   Clear
5:35 AM 77.0 °F - 75.2 °F 94% 30.12 in 10.0 mi West 4.6 mph - N/A   Clear
5:55 AM 77.0 °F - 75.2 °F 94% 30.12 in 7.0 mi West 4.6 mph - N/A   Clear
6:15 AM 78.8 °F - 75.2 °F 89% 30.12 in 10.0 mi NNW 4.6 mph - N/A   Clear
6:35 AM 77.0 °F - 75.2 °F 94% 30.12 in 7.0 mi Calm Calm - N/A   Clear
6:55 AM 78.8 °F - 75.2 °F 89% 30.13 in 10.0 mi Calm Calm - N/A   Clear
7:15 AM 80.6 °F 86.2 °F 75.2 °F 84% 30.13 in 10.0 mi NNW 4.6 mph - N/A   Clear
7:35 AM 80.6 °F 86.2 °F 75.2 °F 84% 30.13 in 10.0 mi NNW 9.2 mph - N/A   Clear
7:55 AM 82.4 °F 90.9 °F 77.0 °F 84% 30.13 in 10.0 mi NNW 6.9 mph - N/A   Clear
8:15 AM 82.4 °F 90.9 °F 77.0 °F 84% 30.13 in 10.0 mi North 8.1 mph - N/A   Clear
8:35 AM 84.2 °F 94.1 °F 77.0 °F 79% 30.14 in 10.0 mi NNW 8.1 mph - N/A   Clear
8:55 AM 86.0 °F 96.9 °F 77.0 °F 74% 30.14 in 10.0 mi North 9.2 mph - N/A   Clear
9:15 AM 86.0 °F 96.9 °F 77.0 °F 74% 30.14 in 10.0 mi NNW 6.9 mph - N/A   Clear
9:35 AM 87.8 °F 99.7 °F 77.0 °F 70% 30.14 in 10.0 mi NNW 3.5 mph - N/A   Clear
9:55 AM 87.8 °F 99.7 °F 77.0 °F 70% 30.14 in 10.0 mi North 8.1 mph - N/A   Clear
10:15 AM 89.6 °F 102.2 °F 77.0 °F 66% 30.14 in 10.0 mi North 8.1 mph - N/A   Clear
10:35 AM 89.6 °F 102.2 °F 77.0 °F 66% 30.14 in 10.0 mi NE 3.5 mph - N/A   Clear
10:55 AM 89.6 °F 102.2 °F 77.0 °F 66% 30.14 in 10.0 mi NE 5.8 mph - N/A   Scattered Clouds
11:15 AM 91.4 °F 107.2 °F 78.8 °F 66% 30.14 in 10.0 mi North 3.5 mph - N/A   Scattered Clouds
11:35 AM 91.4 °F 105.1 °F 77.0 °F 63% 30.13 in 10.0 mi Calm Calm - N/A   Scattered Clouds
11:55 AM 91.4 °F 105.1 °F 77.0 °F 63% 30.13 in 10.0 mi ENE 3.5 mph - N/A   Scattered Clouds
12:15 PM 91.4 °F 105.1 °F 77.0 °F 63% 30.12 in 4.0 mi NNW 5.8 mph - N/A   Haze
12:35 PM 93.2 °F 107.2 °F 77.0 °F 59% 30.12 in 10.0 mi West 8.1 mph - N/A   Scattered Clouds
12:55 PM 93.2 °F 107.2 °F 77.0 °F 59% 30.12 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:15 PM 95.0 °F 109.7 °F 77.0 °F 56% 30.11 in 10.0 mi WNW 3.5 mph - N/A   Scattered Clouds
1:35 PM 93.2 °F 107.2 °F 77.0 °F 59% 30.11 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:55 PM 93.2 °F 107.2 °F 77.0 °F 59% 30.10 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
2:15 PM 95.0 °F 109.7 °F 77.0 °F 56% 30.09 in 10.0 mi NNW 5.8 mph - N/A   Overcast
2:35 PM 93.2 °F 107.2 °F 77.0 °F 59% 30.09 in 10.0 mi West 3.5 mph - N/A   Scattered Clouds
2:55 PM 93.2 °F 110.2 °F 78.8 °F 63% 30.08 in 10.0 mi West 4.6 mph - N/A   Scattered Clouds
3:15 PM 93.2 °F 107.2 °F 77.0 °F 59% 30.08 in 10.0 mi WNW 5.8 mph - N/A   Scattered Clouds
3:35 PM 96.8 °F 112.2 °F 77.0 °F 53% 30.07 in 10.0 mi West 4.6 mph - N/A   Scattered Clouds
3:55 PM 95.0 °F 112.2 °F 78.8 °F 59% 30.06 in 10.0 mi West 8.1 mph - N/A   Scattered Clouds
4:15 PM 96.8 °F 114.8 °F 78.8 °F 56% 30.06 in 10.0 mi WSW 4.6 mph - N/A   Scattered Clouds
4:35 PM 96.8 °F 112.2 °F 77.0 °F 53% 30.05 in 10.0 mi West 6.9 mph - N/A   Clear
4:55 PM 96.8 °F 112.2 °F 77.0 °F 53% 30.04 in 10.0 mi West 5.8 mph - N/A   Clear
5:15 PM 96.8 °F 112.2 °F 77.0 °F 53% 30.04 in 10.0 mi WSW 4.6 mph - N/A   Clear
6:15 PM 95.0 °F 109.7 °F 77.0 °F 56% 30.03 in 10.0 mi West 6.9 mph - N/A   Clear
6:35 PM 95.0 °F 109.7 °F 77.0 °F 56% 30.03 in 10.0 mi WSW 3.5 mph - N/A   Clear
6:55 PM 91.4 °F 105.1 °F 77.0 °F 63% 30.05 in 10.0 mi West 4.6 mph - N/A   Clear
7:15 PM 89.6 °F 102.2 °F 77.0 °F 66% 30.05 in 10.0 mi West 3.5 mph - N/A   Clear
7:35 PM 89.6 °F 102.2 °F 77.0 °F 66% 30.05 in 10.0 mi West 4.6 mph - N/A   Clear
7:55 PM 89.6 °F 104.7 °F 78.8 °F 70% 30.05 in 10.0 mi SW 3.5 mph - N/A   Clear
8:15 PM 87.8 °F 102.5 °F 78.8 °F 75% 30.05 in 10.0 mi SW 4.6 mph - N/A   Clear
8:35 PM 87.8 °F 102.5 °F 78.8 °F 75% 30.04 in 10.0 mi SW 4.6 mph - N/A   Clear
8:55 PM 86.0 °F 99.3 °F 78.8 °F 79% 30.04 in 10.0 mi SW 4.6 mph - N/A   Clear
9:15 PM 86.0 °F 101.9 °F 80.6 °F 84% 30.04 in 10.0 mi SW 5.8 mph - N/A   Clear
9:35 PM 86.0 °F 99.3 °F 78.8 °F 79% 30.04 in 10.0 mi WSW 4.6 mph - N/A   Clear
9:55 PM 86.0 °F 99.3 °F 78.8 °F 79% 30.05 in 10.0 mi Calm Calm - N/A   Clear
10:15 PM 82.4 °F 92.4 °F 78.8 °F 89% 30.05 in 10.0 mi WSW 4.6 mph - N/A   Clear
10:35 PM 84.2 °F 96.1 °F 78.8 °F 84% 30.05 in 10.0 mi SW 4.6 mph - N/A   Clear
10:55 PM 82.4 °F 92.4 °F 78.8 °F 89% 30.04 in 10.0 mi SW 3.5 mph - N/A   Clear
11:15 PM 82.4 °F 92.4 °F 78.8 °F 89% 30.04 in 10.0 mi SSW 4.6 mph - N/A   Clear
11:35 PM 82.4 °F 92.4 °F 78.8 °F 89% 30.05 in 10.0 mi Calm Calm - N/A   Clear
11:55 PM 82.4 °F 92.4 °F 78.8 °F 89% 30.04 in 10.0 mi Calm Calm - N/A   Clear