Weather History for Dulles Airport, VA

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Month of February, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 58 °F 43 °F 30 °F
Mean Temperature 48 °F 35 °F 22 °F
Min Temperature 39 °F 27 °F 13 °F
Degree Days  
Heating Degree Days (base 65) 43 30 17 828
Cooling Degree Days (base 65) 0 0 0 0
Growing Degree Days (base 50) 0 0 0 0
Dew Point  
Dew Point 49 °F 24 °F 1 °F
Precipitation  
Precipitation 0.71 in 0.07 in 0.00 in 1.63 in
Snowdepth 0.0 in 0.0 in 0.0 in -
Wind  
Wind 41 mph 9 mph 0 mph
Gust Wind 55 mph 25 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.49 in 30.03 in 29.54 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Feb. 12, 2013 Rise Set
Actual Time 7:04 AM EST 5:44 PM EST
Civil Twilight 6:36 AM EST 6:11 PM EST
Nautical Twilight 6:05 AM EST 6:42 PM EST
Astronomical Twilight 5:34 AM EST 7:13 PM EST
Moon 8:02 AM EST (2/12) 8:40 PM EST (2/12)
Length of Visible Light 11h 34m
Length of Day
10h 39m
Waxing Crescent, 7% of the Moon is Illuminated
Feb 12
Waxing Crescent
Feb 17
First Quarter
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New

Weather History Calendar

Precipitation Actual month total 1.63 Normal Month Total: 2.74
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Snow
Actual:
32 | 18 0.01
Average:
44 | 24 0.10
Snow
Actual:
30 | 13 T
Average:
44 | 24 0.10
Snow
Actual:
33 | 23 0.01
Average:
44 | 25 0.10
Partly Cloudy
Actual:
36 | 23 0.00
Average:
44 | 25 0.10
Mostly Cloudy
Actual:
42 | 27 0.00
Average:
44 | 25 0.09
Rain
Actual:
46 | 28 T
Average:
45 | 25 0.10
Mostly Cloudy
Actual:
39 | 25 0.00
Average:
45 | 25 0.10
Snow
Actual:
42 | 32 0.19
Average:
45 | 25 0.10
Scattered Clouds
Actual:
42 | 26 T
Average:
45 | 25 0.10
Partly Cloudy
Actual:
45 | 17 0.00
Average:
45 | 25 0.10
Rain
Actual:
58 | 37 0.13
Average:
45 | 25 0.10
Scattered Clouds
Actual:
57 | 39 0.00
Average:
46 | 25 0.09
Snow
Actual:
46 | 32 0.26
Average:
46 | 26 0.10
Scattered Clouds
Actual:
50 | 30 0.00
Average:
46 | 26 0.10
Rain
Actual:
58 | 30 0.10
Average:
46 | 26 0.10
Snow
Actual:
38 | 29 T
Average:
47 | 26 0.10
Partly Cloudy
Actual:
31 | 23 T
Average:
47 | 26 0.10
Scattered Clouds
Actual:
43 | 18 0.00
Average:
47 | 26 0.10
Snow
Actual:
45 | 34 0.07
Average:
47 | 27 0.09
Partly Cloudy
Actual:
39 | 24 T
Average:
48 | 27 0.10
Partly Cloudy
Actual:
39 | 23 0.00
Average:
48 | 27 0.10
Snow
Actual:
33 | 27 0.06
Average:
48 | 27 0.09
Rain
Actual:
43 | 33 0.04
Average:
48 | 27 0.10
Partly Cloudy
Actual:
51 | 31 0.00
Average:
49 | 28 0.10
Scattered Clouds
Actual:
47 | 22 0.00
Average:
49 | 28 0.10
Rain
Actual:
44 | 26 0.71
Average:
49 | 28 0.09
Rain
Actual:
55 | 39 0.04
Average:
50 | 28 0.10
Rain
Actual:
45 | 37 0.01
Average:
50 | 28 0.09
 

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

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Feb high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 32 25 18 25 12 1 84 60 36 30.41 30.08 29.81 10 9 1 35 14 45 0.01 Snow
2 30 22 13 25 15 3 92 68 43 30.40 30.19 30.02 10 8 2 17 6 25 T Snow
3 33 28 23 27 24 16 96 75 53 29.99 29.91 29.85 10 8 2 25 4 32 0.01 Snow
4 36 30 23 19 13 9 55 48 40 30.11 30.01 29.90 10 10 10 23 10 32 0.00  
5 42 35 27 29 24 19 82 68 54 29.95 29.89 29.86 10 10 8 8 3 9 0.00  
6 46 37 28 30 25 20 92 69 45 30.35 30.16 29.95 10 9 5 22 9 28 T Rain
7 39 32 25 28 23 20 88 68 48 30.45 30.36 30.21 10 10 7 12 5 15 0.00  
8 42 37 32 36 31 21 96 76 56 30.20 29.92 29.78 10 8 2 37 13 47 0.19 Rain , Snow
9 42 34 26 20 16 12 58 45 32 30.40 30.21 29.96 10 10 10 41 16 55 T  
10 45 31 17 23 16 11 84 56 27 30.49 30.39 30.23 10 10 10 14 6 20 0.00  
11 58 48 37 49 40 25 93 63 32 30.23 29.94 29.72 10 8 2 18 10 25 0.13 Rain
12 57 48 39 30 26 23 65 47 28 29.99 29.93 29.84 10 10 10 23 8 29 0.00  
13 46 39 32 36 30 25 96 75 53 29.96 29.78 29.67 10 6 0 10 5 14 0.26 Rain , Snow
14 50 40 30 33 28 24 96 68 39 30.02 29.96 29.81 10 9 4 16 5 20 0.00  
15 58 44 30 37 32 27 92 64 35 30.04 29.99 29.90 10 10 5 29 7 35 0.10 Rain
16 38 34 29 34 27 14 100 72 43 30.01 29.94 29.86 10 8 0 20 8 26 T Fog , Snow
17 31 27 23 15 10 3 63 49 34 30.21 29.99 29.87 10 10 10 35 18 43 T  
18 43 31 18 14 8 6 57 41 24 30.39 30.28 30.15 10 10 10 22 8 29 0.00  
19 45 40 34 39 29 17 100 70 40 30.12 29.91 29.73 10 9 2 23 12 31 0.07 Rain , Snow
20 39 32 24 21 14 7 59 48 37 30.18 30.02 29.87 10 10 10 23 16 40 T  
21 39 31 23 15 12 8 60 48 35 30.33 30.22 30.15 10 10 10 22 10 31 0.00  
22 33 30 27 29 22 15 85 68 51 30.38 30.31 30.22 10 9 3 16 7 20 0.06 Rain , Snow
23 43 38 33 41 35 30 96 89 82 30.19 30.00 29.83 10 3 1 12 5 16 0.04 Rain
24 51 41 31 39 30 16 100 66 32 30.13 29.92 29.81 10 8 2 24 10 37 0.00  
25 47 35 22 25 20 17 85 60 34 30.22 30.19 30.13 10 10 10 13 5 17 0.00  
26 44 35 26 41 33 22 96 78 59 30.23 29.96 29.62 10 6 2 25 9 38 0.71 Rain
27 55 47 39 41 36 31 92 69 45 29.70 29.62 29.54 10 8 1 17 8 22 0.04 Rain
28 45 41 37 35 28 24 76 61 45 29.74 29.68 29.65 10 10 10 21 9 30 0.01 Rain