Bristow, VA

5:19 AM EDT on August 28, 2016 (GMT -0400)
Manassas Regional-Davis

Weather History for KHEF - December, 2012

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Week of December 16, 2012 through December 22, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 57 °F 52 °F 44 °F
Mean Temperature 48 °F 43 °F 34 °F
Min Temperature 44 °F 34 °F 24 °F
Degree Days  
Heating Degree Days (base 65) 31 22 16 154
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 55 °F 37 °F 19 °F
Precipitation  
Precipitation 0.01 in 0.00 in 0.00 in 0.03 in
Snowdepth - - - -
Wind  
Wind 29 mph 6 mph 0 mph
Gust Wind 44 mph 22 mph 14 mph
Sea Level Pressure  
Sea Level Pressure 30.21 in 29.80 in 29.30 in

Weekly Weather History Graph

Weekly Weather History Graph

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Astronomy

Dec. 20, 2012 Rise Set
Actual Time 7:24 AM EST 4:51 PM EST
Civil Twilight 6:54 AM EST 5:21 PM EST
Nautical Twilight 6:20 AM EST 5:55 PM EST
Astronomical Twilight 5:48 AM EST 6:27 PM EST
Moon 12:05 PM EST (12/20) 12:12 AM EST (12/20)
Length of Visible Light 10h 27m
Length of Day
9h 27m
First Quarter, 55% of the Moon is Illuminated
Dec 20
First Quarter
Dec 28
Full
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter

Daily Weather History & Observations

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Dec high avg low high avg low high avg low high avg low high avg low high avg high sum  
16 48 45 42 46 44 39 100 96 81 30.14 29.99 29.84 10 8 3 13 2 20 0.01  
17 53 48 44 54 48 45 100 98 93 29.86 29.77 29.55 9 3 0 9 2 - 0.00 Fog
18 57 45 33 54 42 30 100 86 55 29.82 29.66 29.55 10 7 2 15 6 21 0.00  
19 55 40 26 39 33 27 100 77 51 30.19 29.97 29.82 10 10 10 16 3 24 0.00  
20 51 42 32 52 38 32 100 93 62 30.21 29.95 29.37 10 9 5 21 4 28 0.01  
21 55 46 37 55 33 21 100 68 45 29.60 29.44 29.30 10 10 3 22 13 32 0.01  
22 44 34 24 25 22 19 86 55 39 30.05 29.82 29.60 10 10 10 29 15 44 0.00