Bristow, VA

7:51 PM EST on February 13, 2016 (GMT -0500)
Manassas Regional-Davis

Weather History for KHEF - September, 2013

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Month of September, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 93 °F 78 °F 66 °F
Mean Temperature 81 °F 66 °F 54 °F
Min Temperature 71 °F 53 °F 39 °F
Degree Days  
Heating Degree Days (base 65) 11 3 0 95
Cooling Degree Days (base 65) 16 4 0 113
Growing Degree Days (base 50) 31 16 4 465
Dew Point  
Dew Point 75 °F 57 °F 39 °F
Precipitation  
Precipitation 0.00 in 0.00 in 0.00 in 0.00 in
Snowdepth - - - -
Wind  
Wind 15 mph 2 mph 0 mph
Gust Wind 36 mph 19 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.44 in 30.05 in 29.70 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 28, 2013 Rise Set
Actual Time 7:03 AM EDT 6:57 PM EDT
Civil Twilight 6:36 AM EDT 7:23 PM EDT
Nautical Twilight 6:06 AM EDT 7:54 PM EDT
Astronomical Twilight 5:34 AM EDT 8:25 PM EDT
Moon 12:52 AM EDT (9/28) 3:11 PM EDT (9/28)
Length of Visible Light 12h 46m
Length of Day
11h 53m
Last Quarter, 36% of the Moon is Illuminated
Sep 28
Last Quarter
Oct 4
New
Oct 11
First Quarter
Oct 18
Full
Oct 26
Last Quarter

Daily Weather History & Observations

2013 Temp. (°F) Dew Point (°F) Humidity (%) Sea Level Press. (in) Visibility (mi) Wind (mph) Precip. (in) Events
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 89 78 66 75 71 64 100 88 52 29.86 29.82 29.77 10 9 2 15 2 20 0.00 Thunderstorm
2 89 80 71 75 72 70 100 86 52 29.85 29.79 29.75 10 10 3 8 2 - 0.00  
3 86 76 66 73 63 55 100 71 35 29.98 29.85 29.75 10 9 3 13 4 22 0.00  
4 82 68 55 64 57 48 100 80 30 30.11 30.04 29.99 10 10 9 10 2 - 0.00  
5 87 71 55 63 56 52 100 75 33 30.14 30.07 30.01 10 8 1 15 3 21 0.00  
6 77 66 53 55 51 45 100 70 32 30.28 30.19 30.14 10 10 10 8 3 - 0.00  
7 78 63 48 64 57 48 100 88 50 30.16 30.06 29.96 10 10 9 8 1 - 0.00  
8 89 74 60 66 63 59 100 80 40 30.05 29.95 29.89 10 10 8 12 3 - 0.00  
9 78 71 64 68 59 50 100 69 49 30.21 30.14 30.06 10 10 10 10 5 - 0.00  
10 91 80 68 75 71 68 100 87 52 30.19 30.15 30.10 10 9 5 9 3 - 0.00  
11 93 81 69 73 72 70 100 88 49 30.16 30.10 30.02 10 7 2 13 1 18 0.00  
12 89 78 68 73 70 66 100 94 55 30.01 29.88 29.77 10 7 2 13 2 36 0.00 Thunderstorm
13 77 68 59 70 59 46 100 80 34 29.97 29.82 29.73 10 8 0 14 4 22 0.00  
14 69 58 48 52 47 43 100 69 38 30.18 30.07 29.97 10 10 10 13 7 18 0.00  
15 75 58 42 61 50 43 100 93 44 30.25 30.18 30.10 10 10 5 8 1 - 0.00  
16 71 62 53 63 57 52 100 91 60 30.24 30.13 30.06 10 9 2 12 3 20 0.00  
17 69 58 44 55 48 39 100 79 33 30.44 30.32 30.25 10 10 3 13 3 18 0.00  
18 69 54 39 54 46 39 100 87 40 30.36 30.29 30.20 10 10 10 7 0 - 0.00  
19 77 62 46 61 53 45 100 89 47 30.21 30.15 30.02 10 10 5 9 1 - 0.00  
20 80 66 51 63 59 50 100 83 51 30.11 30.04 29.97 10 10 2 12 3 16 0.00  
21 73 65 57 68 62 55 100 89 69 29.98 29.86 29.70 10 9 3 14 5 16 0.00 Rain
22 73 62 51 63 54 48 100 83 47 29.97 29.84 29.75 10 7 0 14 2 18 0.00  
23 66 56 46 50 47 41 100 81 46 30.11 30.05 29.97 10 10 2 12 4 - 0.00  
24 73 56 39 54 46 39 100 89 41 30.13 30.04 29.96 10 8 1 6 0 - 0.00  
25 73 58 42 55 48 43 100 91 36 30.00 29.96 29.90 10 8 0 6 0 - 0.00  
26 75 63 51 57 53 46 100 84 38 30.09 30.00 29.93 10 10 8 10 2 - 0.00  
27 69 58 48 61 53 48 100 93 64 30.25 30.16 30.09 10 9 2 6 0 - 0.00  
28 68 59 50 57 54 48 100 81 60 30.32 30.27 30.21 10 10 2 8 2 - 0.00  
29 71 56 42 57 50 43 100 92 46 30.23 30.15 30.07 10 8 1 6 1 - 0.00  
30 75 60 46 57 52 46 100 88 47 30.12 30.06 29.99 10 8 0 6 1 - 0.00