Manassas, VA

8:51 AM EST on November 24, 2017 (GMT -0500)
Manassas Regional-Davis

Weather History for KHEF - December, 2012

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Tuesday, December 18, 2012

  Actual Average Record
Temperature  
Mean Temperature 45 °F -  
Max Temperature 57 °F 43 °F 75 °F (2006)
Min Temperature 33 °F 23 °F 10 °F (2010)
Degree Days  
Heating Degree Days 20    
Moisture  
Dew Point 42 °F    
Average Humidity 86    
Maximum Humidity 100    
Minimum Humidity 55    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.66 in    
Wind  
Wind Speed 6 mph (WSW)    
Max Wind Speed 15 mph    
Max Gust Speed 21 mph    
Visibility 7 miles    
Events      
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Date:

Astronomy

Dec. 18, 2012 Rise Set
Actual Time 7:23 AM EST 4:50 PM EST
Civil Twilight 6:53 AM EST 5:20 PM EST
Nautical Twilight 6:19 AM EST 5:54 PM EST
Astronomical Twilight 5:47 AM EST 6:26 PM EST
Moon 11:05 AM EST (12/18) 11:10 PM EST (12/18)
Length of Visible Light 10h 27m
Length of Day
9h 27m
Waxing Crescent, 34% of the Moon is Illuminated
Dec 18
Waxing Crescent
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New

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 53.6 °F - 53.6 °F 100% 29.55 in 3.0 mi SSW 4.6 mph - N/A   Overcast
12:35 AM 51.8 °F - 51.8 °F 100% 29.55 in 6.0 mi SSW 4.6 mph - N/A   Overcast
12:55 AM 51.8 °F - 51.8 °F 100% 29.56 in 4.0 mi WSW 6.9 mph - N/A   Overcast
1:15 AM 51.8 °F - 50.0 °F 94% 29.55 in 5.0 mi SW 9.2 mph - N/A   Overcast
1:35 AM 51.8 °F - 51.8 °F 100% 29.56 in 1.8 mi SW 6.9 mph - N/A   Overcast
1:55 AM 50.0 °F - 48.2 °F 94% 29.57 in 1.5 mi SW 9.2 mph - N/A   Overcast
2:15 AM 50.0 °F - 48.2 °F 94% 29.57 in 1.5 mi SW 9.2 mph - N/A   Overcast
2:35 AM 50.0 °F - 48.2 °F 94% 29.56 in 1.5 mi SW 5.8 mph - N/A   Overcast
2:55 AM 50.0 °F - 48.2 °F 94% 29.58 in 1.8 mi WSW 6.9 mph - N/A   Overcast
3:15 AM 50.0 °F - 50.0 °F 100% 29.57 in 2.5 mi WSW 6.9 mph - N/A   Overcast
3:35 AM 50.0 °F - 50.0 °F 100% 29.56 in 3.0 mi West 6.9 mph - N/A   Overcast
3:55 AM 50.0 °F - 50.0 °F 100% 29.56 in 6.0 mi SSW 8.1 mph - N/A   Overcast
4:15 AM 50.0 °F - 50.0 °F 100% 29.57 in 6.0 mi SSW 4.6 mph - N/A   Overcast
4:35 AM 50.0 °F - 50.0 °F 100% 29.56 in 7.0 mi SW 6.9 mph - N/A   Overcast
4:55 AM 48.2 °F - 48.2 °F 100% 29.57 in 6.0 mi SW 6.9 mph - N/A   Overcast
5:15 AM 48.2 °F - 48.2 °F 100% 29.56 in 6.0 mi SW 4.6 mph - N/A   Overcast
5:35 AM 48.2 °F - 46.4 °F 93% 29.57 in 4.0 mi SSW 4.6 mph - N/A   Overcast
6:15 AM 48.2 °F - 46.4 °F 93% 29.57 in 4.0 mi SSW 5.8 mph - N/A   Overcast
6:35 AM 48.2 °F - 48.2 °F 100% 29.57 in 5.0 mi SSW 3.5 mph - N/A   Overcast
6:55 AM 46.4 °F 45.2 °F 46.4 °F 100% 29.58 in 5.0 mi SW 3.5 mph - N/A   Overcast
7:30 AM 46.4 °F - 46.4 °F 100% 29.59 in 4.0 mi Calm Calm - N/A   Overcast
7:50 AM 44.6 °F - 44.6 °F 100% 29.59 in 6.0 mi Calm Calm - N/A   Overcast
10:50 AM 57.2 °F - 48.2 °F 72% 29.62 in 10.0 mi West 8.1 mph - N/A   Partly Cloudy
11:55 AM 57.2 °F - 41.0 °F 55% 29.61 in 10.0 mi WNW 15.0 mph 19.6 mph N/A   Mostly Cloudy
1:45 PM 55.4 °F - 41.0 °F 58% 29.62 in 10.0 mi NW 15.0 mph 20.7 mph N/A   Mostly Cloudy
3:55 PM 51.8 °F - 37.4 °F 58% 29.70 in 10.0 mi NNW 11.5 mph 18.4 mph N/A   Overcast
4:45 PM 48.2 °F - 37.4 °F 66% 29.71 in 10.0 mi North 8.1 mph 18.4 mph N/A   Scattered Clouds
5:45 PM 48.2 °F - 35.6 °F 62% 29.73 in 10.0 mi NW 11.5 mph 16.1 mph N/A   Scattered Clouds
7:55 PM 42.8 °F 39.3 °F 33.8 °F 70% 29.79 in 10.0 mi NW 5.8 mph - N/A   Clear
8:15 PM 44.6 °F 40.2 °F 33.8 °F 66% 29.80 in 10.0 mi WNW 8.1 mph - N/A   Clear
8:35 PM 44.6 °F 40.2 °F 33.8 °F 66% 29.81 in 10.0 mi WNW 8.1 mph - N/A   Clear
8:55 PM 42.8 °F 39.3 °F 33.8 °F 70% 29.81 in 10.0 mi NW 5.8 mph - N/A   Clear
9:15 PM 42.8 °F 41.1 °F 32.0 °F 66% 29.81 in 10.0 mi NW 3.5 mph - N/A   Clear
9:35 PM 42.8 °F 41.1 °F 32.0 °F 66% 29.81 in 10.0 mi NNW 3.5 mph - N/A   Clear
9:55 PM 41.0 °F 39.0 °F 32.0 °F 70% 29.81 in 10.0 mi NNW 3.5 mph - N/A   Clear
10:15 PM 37.4 °F 32.8 °F 32.0 °F 81% 29.81 in 10.0 mi NNW 5.8 mph - N/A   Clear
10:35 PM 35.6 °F - 33.8 °F 93% 29.81 in 10.0 mi Calm Calm - N/A   Clear
10:55 PM 35.6 °F 32.8 °F 33.8 °F 93% 29.82 in 10.0 mi SSE 3.5 mph - N/A   Clear
11:15 PM 35.6 °F - 32.0 °F 87% 29.81 in 10.0 mi Calm Calm - N/A   Clear
11:35 PM 33.8 °F - 30.2 °F 87% 29.82 in 10.0 mi Calm Calm - N/A   Clear
11:55 PM 33.8 °F - 32.0 °F 93% 29.82 in 10.0 mi Calm Calm - N/A   Clear