Weather History for Washington, DC

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Month of January, 2012

  Max Avg Min Sum
Temperature  
Max Temperature 68 °F 49 °F 32 °F
Mean Temperature 53 °F 41 °F 26 °F
Min Temperature 44 °F 32 °F 17 °F
Degree Days  
Heating Degree Days (base 65) 39 24 12 746
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 2 0 0 6
Dew Point  
Dew Point 59 °F 26 °F -6 °F
Precipitation  
Precipitation 0.63 in 0.08 in 0.00 in 2.20 in
Snowdepth 1.0 in 0.0 in 0.0 in -
Wind  
Wind 33 mph 9 mph 0 mph
Gust Wind 40 mph 23 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.61 in 30.07 in 29.35 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Jan. 26, 2012 Rise Set
Actual Time 7:19 AM EST 5:22 PM EST
Civil Twilight 6:50 AM EST 5:50 PM EST
Nautical Twilight 6:18 AM EST 6:22 PM EST
Astronomical Twilight 5:47 AM EST 6:54 PM EST
Moon 8:48 AM EST (1/26) 9:09 PM EST (1/26)
Length of Visible Light 10h 59m
Length of Day
10h 02m
Waxing Crescent, 12% of the Moon is Illuminated
Jan 26
Waxing Crescent
Jan 30
First Quarter
Feb 7
Full
Feb 14
Last Quarter
Feb 21
New

Weather History Calendar

Precipitation Actual month total 2.20 Normal Month Total: 2.81
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Rain
Actual:
60 | 38 0.01
Average:
44 | 29 0.09
Partly Cloudy
Actual:
49 | 32 0.00
Average:
43 | 29 0.08
Snow
Actual:
34 | 21 T
Average:
43 | 29 0.09
Partly Cloudy
Actual:
35 | 17 0.00
Average:
43 | 29 0.08
Partly Cloudy
Actual:
50 | 30 0.00
Average:
43 | 29 0.09
Partly Cloudy
Actual:
63 | 33 0.00
Average:
43 | 29 0.09
Partly Cloudy
Actual:
68 | 36 0.00
Average:
43 | 29 0.09
Partly Cloudy
Actual:
52 | 37 0.00
Average:
43 | 29 0.09
Snow
Actual:
40 | 33 0.16
Average:
43 | 29 0.09
Fog
Actual:
54 | 32 0.00
Average:
43 | 29 0.09
Rain
Actual:
49 | 33 0.51
Average:
43 | 29 0.10
Rain
Actual:
57 | 44 0.24
Average:
43 | 28 0.09
Rain
Actual:
51 | 29 0.05
Average:
43 | 28 0.09
Partly Cloudy
Actual:
39 | 27 0.00
Average:
43 | 28 0.10
Scattered Clouds
Actual:
36 | 27 0.00
Average:
43 | 28 0.09
Rain
Actual:
42 | 25 0.03
Average:
43 | 28 0.09
Rain
Actual:
60 | 40 0.26
Average:
43 | 28 0.09
Partly Cloudy
Actual:
58 | 28 0.00
Average:
43 | 28 0.09
Partly Cloudy
Actual:
41 | 25 0.00
Average:
43 | 28 0.09
Snow
Actual:
40 | 28 0.05
Average:
43 | 28 0.09
Snow
Actual:
34 | 28 0.23
Average:
43 | 28 0.10
Snow
Actual:
32 | 30 T
Average:
43 | 28 0.09
Rain
Actual:
44 | 32 0.03
Average:
44 | 28 0.09
Partly Cloudy
Actual:
56 | 38 0.00
Average:
44 | 29 0.09
Partly Cloudy
Actual:
49 | 36 0.00
Average:
44 | 29 0.09
Overcast
Actual:
55 | 40 T
Average:
44 | 29 0.09
Thunderstorm
Actual:
62 | 41 0.63
Average:
44 | 29 0.08
Scattered Clouds
Actual:
55 | 33 0.00
Average:
44 | 29 0.10
Partly Cloudy
Actual:
49 | 32 0.00
Average:
44 | 29 0.09
Partly Cloudy
Actual:
48 | 34 0.00
Average:
44 | 29 0.09
Partly Cloudy
Actual:
66 | 39 0.00
Average:
44 | 29 0.10
 

Calendar Legend

Sunny
Clear
Mostly Cloudy
Partly Sunny
Partly Cloudy
Mostly Sunny
Cloudy Rain Snow
Hail
Flurries
Thunderstorms Hazy
Fog
Sleet '?' denotes
'chance of'
Unknown

Daily Weather History & Observations

2012 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Jan high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 60 49 38 46 38 27 92 67 41 30.15 29.96 29.77 10 10 7 22 9 29 0.01 Rain
2 49 41 32 25 16 11 51 42 32 29.97 29.93 29.86 10 10 10 31 14 40 0.00  
3 34 28 21 16 8 -3 58 43 27 30.30 30.09 29.97 10 10 10 33 16 40 T Snow
4 35 26 17 18 7 -6 47 42 37 30.35 30.19 30.00 10 10 10 21 8 25 0.00  
5 50 40 30 28 24 17 75 55 34 30.04 30.00 29.96 10 10 7 20 5 24 0.00  
6 63 48 33 31 29 26 82 55 27 29.96 29.90 29.83 10 10 8 15 7 21 0.00  
7 68 52 36 42 33 24 89 63 37 30.06 29.89 29.81 10 10 10 17 8 24 0.00  
8 52 45 37 29 26 23 59 48 36 30.35 30.25 30.08 10 10 10 15 8 21 0.00  
9 40 37 33 34 29 22 96 74 52 30.35 30.22 30.06 10 6 0 10 4 14 0.16 Fog , Rain , Snow
10 54 43 32 35 31 28 96 67 38 30.07 30.03 30.00 10 7 0 15 7 20 0.00 Fog
11 49 41 33 47 38 29 93 85 76 30.05 29.91 29.54 10 6 4 14 6 18 0.51 Rain
12 57 51 44 47 43 39 93 78 62 29.55 29.49 29.41 10 9 5 17 8 22 0.24 Rain
13 51 40 29 45 22 12 86 58 30 29.99 29.66 29.35 10 10 6 29 15 39 0.05 Rain
14 39 33 27 15 13 12 55 46 37 30.17 30.10 30.00 10 10 10 18 9 23 0.00  
15 36 32 27 14 10 3 55 41 26 30.60 30.42 30.19 10 10 10 22 10 28 0.00  
16 42 34 25 31 19 10 60 50 40 30.61 30.46 30.19 10 10 9 21 10 26 0.03 Rain
17 60 50 40 50 42 33 89 76 62 30.16 29.89 29.71 10 10 4 25 14 32 0.26 Rain
18 58 43 28 50 20 11 77 54 30 30.21 30.05 29.72 10 10 10 32 17 40 0.00  
19 41 33 25 23 17 12 58 49 40 30.25 30.11 29.96 10 10 10 20 10 24 0.00  
20 40 34 28 26 17 7 70 51 32 30.30 30.21 30.00 10 8 0 22 8 26 0.05 Fog , Snow
21 34 31 28 29 27 24 92 82 72 30.31 30.08 29.97 10 7 1 21 9 23 0.23 Rain , Snow
22 32 31 30 28 25 23 85 76 66 30.49 30.43 30.33 10 9 5 15 8 18 T Snow
23 44 38 32 43 34 28 100 91 82 30.36 30.11 29.95 10 3 0 16 5 22 0.03 Fog , Rain
24 56 47 38 43 41 34 100 76 51 30.22 30.09 29.96 10 9 6 14 5 16 0.00  
25 49 43 36 34 31 28 76 61 46 30.40 30.29 30.23 10 10 9 16 6 21 0.00  
26 55 48 40 49 41 33 89 80 71 30.22 30.02 29.74 10 8 4 13 4 14 T  
27 62 52 41 59 49 26 100 75 49 30.04 29.60 29.47 10 8 0 32 14 40 0.63 Rain , Thunderstorm
28 55 44 33 32 26 13 82 56 29 30.21 30.06 29.94 10 10 10 25 8 35 0.00  
29 49 41 32 26 13 8 51 36 21 30.30 30.21 30.08 10 10 10 28 11 39 0.00  
30 48 41 34 27 17 10 59 40 21 30.42 30.32 30.22 10 10 10 22 9 31 0.00  
31 66 53 39 33 28 22 59 42 24 30.25 30.17 30.09 10 10 10 21 11 25 0.00