Weather History for Manassas, VA

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Month of May, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 91 °F 75 °F 59 °F
Mean Temperature 78 °F 63 °F 48 °F
Min Temperature 68 °F 52 °F 32 °F
Degree Days  
Heating Degree Days (base 65) 17 5 0 146
Cooling Degree Days (base 65) 12 3 0 92
Growing Degree Days (base 50) 28 13 0 413
Dew Point  
Dew Point 73 °F 54 °F 25 °F
Precipitation  
Precipitation 0.01 in 0.00 in 0.00 in 0.01 in
Snowdepth - - - -
Wind  
Wind 28 mph 4 mph 0 mph
Gust Wind 36 mph 19 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.45 in 30.07 in 29.69 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

May. 20, 2013 Rise Set
Actual Time 5:53 AM EDT 8:19 PM EDT
Civil Twilight 5:23 AM EDT 8:50 PM EDT
Nautical Twilight 4:45 AM EDT 9:28 PM EDT
Astronomical Twilight 4:04 AM EDT 10:09 PM EDT
Moon 3:28 PM EDT (5/20) 2:44 AM EDT (5/20)
Length of Visible Light 15h 26m
Length of Day
14h 26m
Waxing Gibbous, 75% of the Moon is Illuminated
May 20
Waxing Gibbous
May 25
Full
May 31
Last Quarter
Jun 8
New
Jun 16
First Quarter

Weather History Calendar

Precipitation Actual month total 0.01 Average Month Total: 2.99
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
 
Partly Cloudy
Actual:
69 | 48 0.00
Average:
69 | 45 0.07
Scattered Clouds
Actual:
69 | 37 0.00
Average:
69 | 46 0.07
Clear
Actual:
69 | 41 0.00
Average:
70 | 46 0.07
Partly Cloudy
Actual:
68 | 46 0.00
Average:
70 | 47 0.07
Scattered Clouds
Actual:
64 | 42 0.00
Average:
70 | 47 0.07
Rain
Actual:
62 | 48 0.01
Average:
71 | 47 0.07
Thunderstorm
Actual:
66 | 57 0.00
Average:
71 | 48 0.08
Mostly Cloudy
Actual:
68 | 53 0.00
Average:
71 | 48 0.08
Fog
Actual:
73 | 51 0.00
Average:
71 | 48 0.08
Thunderstorm
Actual:
84 | 51 0.00
Average:
71 | 48 0.08
Thunderstorm
Actual:
78 | 62 0.00
Average:
71 | 48 0.08
Scattered Clouds
Actual:
64 | 44 0.00
Average:
71 | 48 0.08
Clear
Actual:
59 | 37 0.00
Average:
71 | 49 0.09
Clear
Actual:
66 | 32 0.00
Average:
71 | 49 0.09
Scattered Clouds
Actual:
87 | 51 0.00
Average:
71 | 49 0.09
Scattered Clouds
Actual:
84 | 59 0.00
Average:
71 | 49 0.09
Clear
Actual:
82 | 53 0.00
Average:
71 | 50 0.09
Overcast
Actual:
66 | 60 0.00
Average:
71 | 50 0.09
Fog
Actual:
73 | 60 0.00
Average:
71 | 50 0.09
Mostly Cloudy
Actual:
80 | 64 0.00
Average:
71 | 50 0.09
Partly Cloudy
Actual:
84 | 64 0.00
Average:
71 | 50 0.08
Partly Cloudy
Actual:
87 | 68 0.00
Average:
72 | 51 0.08
Thunderstorm
Actual:
82 | 62 0.00
Average:
72 | 51 0.08
Partly Cloudy
Actual:
62 | 48 0.00
Average:
72 | 51 0.08
Scattered Clouds
Actual:
66 | 44 0.00
Average:
72 | 51 0.08
Clear
Actual:
84 | 41 0.00
Average:
72 | 51 0.56
Clear
Actual:
71 | 41 0.00
Average:
73 | 51 0.08
Partly Cloudy
Actual:
80 | 53 0.00
Average:
73 | 51 0.08
Clear
Actual:
89 | 66 0.00
Average:
73 | 52 0.08
Thunderstorm
Actual:
91 | 62 0.00
Average:
73 | 52 0.08
Clear
Actual:
89 | 60 0.00
Average:
73 | 52 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
May high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 69 58 48 52 44 36 88 66 28 30.44 30.35 30.29 10 10 9 9 5 - 0.00  
2 69 53 37 50 45 37 100 73 43 30.45 30.39 30.32 10 9 2 13 3 20 0.00  
3 69 55 41 50 41 36 100 69 37 30.38 30.33 30.28 10 9 2 13 3 22 0.00  
4 68 57 46 46 43 39 87 67 43 30.34 30.26 30.18 10 10 10 12 4 16 0.00  
5 64 53 42 46 42 39 100 74 45 30.25 30.21 30.15 10 10 10 10 3 18 0.00  
6 62 55 48 59 52 46 94 87 77 30.19 30.11 30.04 10 10 6 9 4 17 0.01 Rain
7 66 62 57 63 59 55 100 95 88 30.04 29.97 29.91 10 8 2 15 7 23 0.00 Rain , Thunderstorm
8 68 60 53 59 56 54 100 97 73 30.01 29.97 29.94 10 8 0 9 1 - 0.00  
9 73 62 51 63 57 52 100 93 65 30.02 29.97 29.94 10 5 0 8 1 - 0.00 Fog
10 84 68 51 64 57 50 100 86 37 30.03 29.97 29.87 10 7 1 20 2 25 0.00 Thunderstorm
11 78 70 62 64 63 59 100 93 54 29.91 29.81 29.71 10 10 2 14 4 24 0.00 Rain , Thunderstorm
12 64 54 44 64 45 28 100 65 29 30.05 29.88 29.77 10 10 10 18 6 26 0.00  
13 59 48 37 43 37 25 100 82 29 30.18 30.09 30.05 10 10 10 13 3 20 0.00  
14 66 49 32 45 37 32 100 71 30 30.24 30.14 30.04 10 10 2 8 2 - 0.00  
15 87 69 51 64 55 45 88 63 40 30.04 29.86 29.69 10 10 8 14 5 23 0.00  
16 84 72 59 64 60 55 100 74 37 29.94 29.84 29.77 10 10 10 13 3 20 0.00  
17 82 68 53 61 56 50 100 67 34 30.14 30.05 29.94 10 10 9 9 4 - 0.00  
18 66 63 60 61 57 52 100 81 64 30.24 30.18 30.14 10 9 4 7 3 - 0.00  
19 73 66 60 68 65 59 100 89 78 30.21 30.13 30.09 10 8 0 8 3 - 0.00 Fog
20 80 72 64 70 67 64 100 90 61 30.12 30.05 29.99 10 8 2 10 3 - 0.00  
21 84 74 64 72 68 64 100 89 62 30.01 29.95 29.89 10 9 3 9 3 - 0.00  
22 87 78 68 73 69 63 100 87 58 29.95 29.89 29.84 10 8 3 15 4 21 0.00  
23 82 72 62 70 66 61 100 83 58 29.91 29.84 29.76 10 10 5 17 4 29 0.00 Thunderstorm
24 62 55 48 63 49 30 100 75 47 30.20 29.94 29.77 10 10 7 28 8 36 0.00  
25 66 55 44 39 35 30 66 48 30 30.23 30.17 30.11 10 10 10 22 14 32 0.00  
26 84 62 41 46 38 30 93 55 18 30.24 30.19 30.14 10 10 10 15 6 23 0.00  
27 71 56 41 55 47 39 100 76 33 30.30 30.25 30.20 10 10 10 7 1 - 0.00  
28 80 66 53 70 60 54 100 89 61 30.21 30.14 30.07 10 10 10 9 1 - 0.00  
29 89 78 66 68 65 64 94 76 43 30.14 30.10 30.08 10 10 10 10 5 16 0.00  
30 91 76 62 70 66 61 100 69 46 30.20 30.16 30.12 10 10 10 12 4 - 0.00 Thunderstorm
31 89 74 60 66 64 59 100 71 40 30.17 30.11 30.04 10 9 2 15 3 21 0.00