Arlington, VA

10:43 AM EST on January 22, 2017 (GMT -0500)
Ronald Reagan Washington National

Weather History for KDCA - December, 2014

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Month of December, 2014

  Max Avg Min Sum
Temperature  
Max Temperature 70 °F 50 °F 38 °F
Mean Temperature 58 °F 44 °F 34 °F
Min Temperature 46 °F 37 °F 29 °F
Degree Days  
Heating Degree Days (base 65) 31 21 7 650
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 9 0 0 14
Dew Point  
Dew Point 55 °F 30 °F 5 °F
Precipitation  
Precipitation 0.88 in 0.13 in 0.00 in 3.49 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 28 mph 8 mph 0 mph
Gust Wind 43 mph 23 mph 17 mph
Sea Level Pressure  
Sea Level Pressure 30.60 in 30.17 in 29.56 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Dec. 17, 2014 Rise Set
Actual Time 7:20 AM EST 4:47 PM EST
Civil Twilight 6:50 AM EST 5:17 PM EST
Nautical Twilight 6:17 AM EST 5:51 PM EST
Astronomical Twilight 5:44 AM EST 6:23 PM EST
Moon 2:34 AM EST (12/17) 1:48 PM EST (12/17)
Length of Visible Light 10h 27m
Length of Day
9h 27m
Waning Crescent, 21% of the Moon is Illuminated
Dec 17
Waning Crescent
Dec 21
New
Dec 28
First Quarter
Jan 4
Full
Jan 13
Last Quarter

Daily Weather History & Observations

2014 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  
1 70 58 46 52 44 32 77 64 51 30.48 30.25 30.14 10 10 5 25 10 36 0.24 Rain
2 46 42 37 36 33 31 85 75 65 30.59 30.47 30.32 10 5 1 16 8 21 0.57 Rain
3 55 48 40 47 39 25 86 63 39 30.32 30.20 30.05 10 9 7 22 9 26 0.05 Rain
4 47 42 37 30 27 24 64 53 42 30.51 30.44 30.34 10 10 10 13 5 15 T Rain
5 47 42 37 39 33 29 64 53 42 30.55 30.46 30.35 10 9 6 13 5 15 T Rain
6 53 49 44 48 43 37 89 82 74 30.33 30.14 30.04 10 6 2 24 9 30 0.48 Rain
7 50 44 37 37 24 18 76 54 31 30.57 30.45 30.27 10 10 10 26 16 38 T  
8 38 37 35 31 22 15 64 52 40 30.60 30.49 30.25 10 9 4 17 12 21 T  
9 47 41 35 37 33 30 85 75 65 30.22 30.02 29.87 10 6 2 18 13 24 0.33 Rain
10 51 46 40 33 29 23 65 54 42 29.88 29.85 29.82 10 10 10 28 17 43 0.00  
11 45 41 36 21 16 5 50 35 20 30.03 29.92 29.86 10 10 6 23 12 35 T  
12 47 42 36 25 20 8 54 37 20 30.14 30.09 30.02 10 10 10 22 12 28 0.00  
13 49 40 31 30 26 23 70 58 46 30.15 30.08 30.01 10 10 7 18 6 25 0.00  
14 57 46 34 37 33 27 76 62 47 30.04 30.00 29.96 10 10 10 21 7 26 0.00  
15 58 49 39 40 38 35 82 67 51 30.12 30.08 30.04 10 10 10 9 4 13 0.00  
16 50 45 39 45 41 35 86 81 76 30.07 29.95 29.88 10 5 2 10 4 13 0.40 Rain
17 58 49 40 41 33 22 89 64 38 30.08 29.99 29.91 10 9 3 23 10 29 0.00  
18 43 40 37 22 21 18 52 46 40 30.20 30.13 30.08 10 10 10 22 12 29 0.00  
19 43 39 34 25 22 21 56 50 43 30.27 30.18 30.13 10 10 10 18 11 26 0.00  
20 39 35 30 22 20 19 63 54 44 30.35 30.30 30.25 10 10 10 10 5 13 0.00  
21 45 40 34 27 24 22 64 55 45 30.38 30.33 30.29 10 10 8 10 4 13 0.00  
22 40 37 33 36 31 24 85 75 64 30.35 30.21 30.09 9 4 1 13 7 15 0.24 Rain , Snow
23 48 44 39 45 41 34 93 86 79 30.08 30.06 30.03 4 2 0 13 4 16 0.05 Fog , Rain
24 59 53 46 55 47 43 93 88 83 30.03 29.74 29.56 8 3 0 12 3 15 0.88 Fog , Rain
25 61 54 46 55 38 29 86 61 36 30.24 29.89 29.57 10 9 4 23 11 32 0.12 Rain
26 51 44 36 35 32 28 76 63 49 30.36 30.29 30.23 10 10 10 16 5 22 0.00  
27 60 48 36 36 33 30 85 62 38 30.31 30.23 30.08 10 10 10 8 2 12 0.00  
28 58 52 45 46 41 36 77 64 51 30.12 30.01 29.93 10 10 7 13 5 15 0.08 Rain
29 48 46 43 39 29 24 76 61 45 30.27 30.20 30.13 10 10 10 15 7 17 0.05 Rain
30 45 38 31 25 19 13 52 41 30 30.44 30.39 30.28 10 10 10 17 9 20 0.00  
31 39 34 29 19 13 6 63 44 25 30.47 30.38 30.26 10 10 10 15 6 21 0.00