Weather History for Washington, DC

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Week of December 16, 2012 through December 22, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 62 °F 54 °F 45 °F
Mean Temperature 53 °F 48 °F 40 °F
Min Temperature 48 °F 41 °F 35 °F
Degree Days  
Heating Degree Days (base 65) 25 17 12 120
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 4 1 0 5
Dew Point  
Dew Point 55 °F 36 °F 18 °F
Precipitation  
Precipitation 0.56 in 0.16 in 0.00 in 0.98 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 31 mph 9 mph 0 mph
Gust Wind 43 mph 26 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.22 in 29.79 in 29.29 in

Weekly Weather History Graph

Weekly Weather History Graph

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Date:

Astronomy

Dec. 20, 2012 Rise Set
Actual Time 7:22 AM EST 4:49 PM EST
Civil Twilight 6:52 AM EST 5:19 PM EST
Nautical Twilight 6:19 AM EST 5:52 PM EST
Astronomical Twilight 5:46 AM EST 6:25 PM EST
Moon 12:03 PM EST 12:10 AM EST
Length of Visible Light 10h 26m
Length of Day
9h 26m
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 52 49 46 47 44 39 93 77 61 30.14 29.98 29.86 10 8 6 9 4 12 0.09 Rain
17 55 52 48 52 49 46 96 91 86 29.87 29.74 29.56 6 4 2 13 4 15 0.07 Rain
18 62 53 43 54 41 29 93 67 41 29.83 29.64 29.55 10 9 5 25 10 35 T Rain
19 54 45 36 36 33 30 85 68 50 30.19 29.98 29.83 10 10 10 23 8 29 0.00  
20 53 47 41 50 36 31 93 73 53 30.22 29.97 29.47 10 8 3 20 6 28 0.56 Rain
21 59 49 39 55 32 18 93 66 39 29.58 29.41 29.29 10 9 2 28 16 38 0.26 Rain
22 45 40 35 22 20 18 52 43 33 30.06 29.84 29.59 10 10 10 31 17 43 0.00