Weather History for Leesburg, VA

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Thursday, February 20, 2014

  Actual Average (KIAD) Record (KIAD)
Temperature  
Mean Temperature 42 °F 37 °F  
Max Temperature 53 °F 48 °F 70 °F (1971)
Min Temperature 30 °F 27 °F -2 °F (1979)
Degree Days  
Heating Degree Days 24 28  
Month to date heating degree days 593  
Since 1 July heating degree days 3377  
Cooling Degree Days 0 0  
Month to date cooling degree days 0  
Year to date cooling degree days 0  
Moisture  
Dew Point 31 °F    
Average Humidity 66    
Maximum Humidity 100    
Minimum Humidity 35    
Precipitation  
Precipitation 0.00 in 0.10 in 1.02 in (1996)
Month to date precipitation 1.97  
Year to date precipitation 4.65  
Snow  
Snow 0.00 in 0.20 in 0.70 in (1969)
Month to date snowfall 5.9  
Since 1 July snowfall 17.2  
Snow Depth -    
Sea Level Pressure  
Sea Level Pressure 30.13 in    
Wind  
Wind Speed 7 mph (South)    
Max Wind Speed 16 mph    
Max Gust Speed 25 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Feb. 20, 2014 Rise Set
Actual Time 6:55 AM EST 5:53 PM EST
Civil Twilight 6:28 AM EST 6:20 PM EST
Nautical Twilight 5:57 AM EST 6:51 PM EST
Astronomical Twilight 5:26 AM EST 7:22 PM EST
Moon 11:42 PM EST (2/20) 9:39 AM EST (2/20)
Length of Visible Light 11h 52m
Length of Day
10h 57m
Waning Gibbous, 71% of the Moon is Illuminated
Feb 20
Waning Gibbous
Feb 22
Last Quarter
Mar 1
New
Mar 8
First Quarter
Mar 16
Full

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 37.4 °F 30.8 °F 32.0 °F 81% 30.15 in 10.0 mi NW 9.2 mph - N/A   Clear
12:35 AM 37.4 °F 32.8 °F 32.0 °F 81% 30.16 in 10.0 mi SSE 5.8 mph - N/A   Clear
12:55 AM 37.4 °F 33.8 °F 32.0 °F 81% 30.16 in 10.0 mi NW 4.6 mph - N/A   Clear
1:15 AM 37.4 °F 31.4 °F 32.0 °F 81% 30.15 in 10.0 mi North 8.1 mph - N/A   Clear
1:35 AM 37.4 °F 31.4 °F 32.0 °F 81% 30.16 in 10.0 mi NW 8.1 mph - N/A   Clear
1:55 AM 35.6 °F - 32.0 °F 87% 30.17 in 10.0 mi Calm Calm - N/A   Clear
2:15 AM 35.6 °F - 32.0 °F 87% 30.18 in 10.0 mi North - - N/A   Clear
2:35 AM 35.6 °F - 32.0 °F 87% 30.18 in 10.0 mi North - - N/A   Clear
2:55 AM 32.0 °F - 32.0 °F 100% 30.18 in 10.0 mi Calm Calm - N/A   Clear
3:15 AM 32.0 °F - 32.0 °F 100% 30.18 in 10.0 mi North - - N/A   Clear
3:35 AM 32.0 °F - 32.0 °F 100% 30.18 in 10.0 mi Calm Calm - N/A   Clear
3:55 AM 32.0 °F - 32.0 °F 100% 30.19 in 10.0 mi North - - N/A   Clear
4:15 AM 32.0 °F - 30.2 °F 93% 30.20 in 10.0 mi North - - N/A   Clear
4:35 AM 32.0 °F - 32.0 °F 100% 30.21 in 10.0 mi North - - N/A   Clear
4:55 AM 32.0 °F - 32.0 °F 100% 30.23 in 10.0 mi North - - N/A   Clear
5:15 AM 32.0 °F - 32.0 °F 100% 30.24 in 10.0 mi North - - N/A   Clear
5:35 AM 33.8 °F - 32.0 °F 93% 30.24 in 10.0 mi North - - N/A   Clear
5:55 AM 32.0 °F - 32.0 °F 100% 30.23 in 10.0 mi Calm Calm - N/A   Clear
6:15 AM 33.8 °F 27.7 °F 32.0 °F 93% 30.22 in 10.0 mi East 6.9 mph - N/A   Clear
6:35 AM 32.0 °F - 30.2 °F 93% 30.23 in 10.0 mi Calm Calm - N/A   Clear
6:55 AM 32.0 °F 28.7 °F 30.2 °F 93% 30.24 in 10.0 mi NNW 3.5 mph - N/A   Clear
7:15 AM 30.2 °F - 30.2 °F 100% 30.24 in 10.0 mi North - - N/A   Clear
7:35 AM 32.0 °F - 32.0 °F 100% 30.25 in 10.0 mi North - - N/A   Scattered Clouds
7:55 AM 32.0 °F - 32.0 °F 100% 30.25 in 10.0 mi North - - N/A   Scattered Clouds
8:15 AM 35.6 °F - 32.0 °F 87% 30.25 in 10.0 mi Calm Calm - N/A   Scattered Clouds
8:35 AM 39.2 °F - 32.0 °F 75% 30.25 in 10.0 mi North - - N/A   Mostly Cloudy
8:55 AM 41.0 °F 38.0 °F 32.0 °F 70% 30.25 in 10.0 mi SE 4.6 mph - N/A   Scattered Clouds
9:15 AM 42.8 °F 38.0 °F 32.0 °F 66% 30.25 in 10.0 mi SSW 8.1 mph - N/A   Clear
9:35 AM 44.6 °F 40.7 °F 32.0 °F 61% 30.25 in 10.0 mi South 6.9 mph - N/A   Clear
9:55 AM 46.4 °F - 32.0 °F 57% 30.24 in 10.0 mi North - - N/A   Clear
10:15 AM 46.4 °F - 32.0 °F 57% 30.25 in 10.0 mi North - - N/A   Scattered Clouds
10:35 AM 50.0 °F - 32.0 °F 50% 30.24 in 10.0 mi North - - N/A   Mostly Cloudy
10:55 AM 50.0 °F - 30.2 °F 47% 30.23 in 10.0 mi North - - N/A   Scattered Clouds
11:15 AM 50.0 °F - 30.2 °F 47% 30.23 in 10.0 mi North - - N/A   Clear
11:35 AM 50.0 °F - 30.2 °F 47% 30.20 in 10.0 mi North - - N/A   Scattered Clouds
11:55 AM 51.8 °F - 30.2 °F 44% 30.19 in 10.0 mi North - - N/A   Clear
12:15 PM 53.6 °F - 28.4 °F 38% 30.16 in 10.0 mi SSE 16.1 mph - N/A   Clear
12:35 PM 53.6 °F - 26.6 °F 35% 30.16 in 10.0 mi North - - N/A   Clear
12:55 PM 53.6 °F - 26.6 °F 35% 30.14 in 10.0 mi South 16.1 mph - N/A   Clear
1:15 PM 53.6 °F - 26.6 °F 35% 30.14 in 10.0 mi South 16.1 mph 25.3 mph N/A   Scattered Clouds
1:35 PM 53.6 °F - 26.6 °F 35% 30.12 in 10.0 mi South 11.5 mph - N/A   Mostly Cloudy
1:55 PM 53.6 °F - 26.6 °F 35% 30.10 in 10.0 mi North - - N/A   Mostly Cloudy
2:15 PM 53.6 °F - 28.4 °F 38% 30.10 in 10.0 mi South 12.7 mph - N/A   Overcast
2:35 PM 53.6 °F - 28.4 °F 38% 30.10 in 10.0 mi North - - N/A   Overcast
2:55 PM 51.8 °F - 28.4 °F 41% 30.09 in 10.0 mi North - - N/A   Overcast
3:15 PM 53.6 °F - 28.4 °F 38% 30.08 in 10.0 mi North - - N/A   Mostly Cloudy
3:35 PM 51.8 °F - 30.2 °F 44% 30.07 in 10.0 mi SSE 15.0 mph - N/A   Mostly Cloudy
3:55 PM 51.8 °F - 30.2 °F 44% 30.07 in 10.0 mi North - - N/A   Mostly Cloudy
4:15 PM 51.8 °F - 30.2 °F 44% 30.07 in 10.0 mi North - - N/A   Overcast
4:35 PM 51.8 °F - 30.2 °F 44% 30.06 in 10.0 mi North - - N/A   Overcast
4:55 PM 50.0 °F - 30.2 °F 47% 30.07 in 10.0 mi North - - N/A   Overcast
5:15 PM 50.0 °F - 30.2 °F 47% 30.07 in 10.0 mi South 10.4 mph - N/A   Overcast
5:35 PM 50.0 °F - 30.2 °F 47% 30.06 in 10.0 mi South 6.9 mph - N/A   Overcast
5:55 PM 50.0 °F - 30.2 °F 47% 30.06 in 10.0 mi North - - N/A   Overcast
6:15 PM 50.0 °F - 30.2 °F 47% 30.06 in 10.0 mi SSE 5.8 mph - N/A   Overcast
6:35 PM 48.2 °F - 30.2 °F 50% 30.06 in 10.0 mi South 8.1 mph - N/A   Overcast
6:55 PM 48.2 °F - 30.2 °F 50% 30.05 in 10.0 mi SSE 6.9 mph - N/A   Overcast
7:15 PM 46.4 °F 44.3 °F 32.0 °F 57% 30.05 in 10.0 mi SSE 4.6 mph - N/A   Scattered Clouds
7:35 PM 46.4 °F - 32.0 °F 57% 30.05 in 10.0 mi North - - N/A   Mostly Cloudy
7:55 PM 46.4 °F - 32.0 °F 57% 30.04 in 10.0 mi North - - N/A   Mostly Cloudy
8:15 PM 46.4 °F - 32.0 °F 57% 30.04 in 10.0 mi North - - N/A   Scattered Clouds
8:35 PM 46.4 °F - 32.0 °F 57% 30.03 in 10.0 mi North - - N/A   Clear
8:55 PM 46.4 °F - 32.0 °F 57% 30.02 in 10.0 mi North - - N/A   Clear
9:15 PM 44.6 °F - 32.0 °F 61% 30.01 in 10.0 mi North - - N/A   Clear
9:35 PM 44.6 °F - 32.0 °F 61% 30.01 in 10.0 mi North - - N/A   Clear
9:55 PM 44.6 °F - 32.0 °F 61% 30.00 in 10.0 mi North - - N/A   Clear
10:15 PM 44.6 °F - 33.8 °F 66% 29.98 in 10.0 mi North - - N/A   Clear
10:35 PM 44.6 °F - 33.8 °F 66% 29.98 in 10.0 mi North - - N/A   Clear
10:55 PM 42.8 °F - 33.8 °F 70% 29.97 in 10.0 mi North - - N/A   Clear
11:15 PM 44.6 °F - 35.6 °F 71% 29.96 in 10.0 mi North - - N/A   Clear
11:35 PM 42.8 °F - 35.6 °F 76% 29.95 in 10.0 mi North - - N/A   Clear
11:55 PM 42.8 °F - 35.6 °F 76% 29.94 in 10.0 mi North - - N/A   Clear