Weather History for Andrews AFB, MD

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Month of September, 2013

  Max Avg Min Sum
Temperature  
Max Temperature 94 °F 78 °F 66 °F
Mean Temperature 84 °F 67 °F 56 °F
Min Temperature 73 °F 56 °F 42 °F
Degree Days  
Heating Degree Days (base 65) 9 2 0 65
Cooling Degree Days (base 65) 18 4 0 127
Growing Degree Days (base 50) 34 17 6 518
Dew Point  
Dew Point 74 °F 56 °F 35 °F
Precipitation  
Precipitation 0.92 in 0.04 in 0.00 in 1.27 in
Snowdepth - - - -
Wind  
Wind 22 mph 6 mph 0 mph
Gust Wind 28 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.45 in 30.06 in 29.70 in

Monthly Weather History Graph

Monthly Weather History Graph

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Date:

Astronomy

Sep. 16, 2013 Rise Set
Actual Time 6:50 AM EDT 7:13 PM EDT
Civil Twilight 6:23 AM EDT 7:40 PM EDT
Nautical Twilight 5:51 AM EDT 8:11 PM EDT
Astronomical Twilight 5:19 AM EDT 8:43 PM EDT
Moon 5:20 PM EDT (9/16) 3:35 AM EDT (9/16)
Length of Visible Light 13h 17m
Length of Day
12h 23m
Waxing Gibbous, 90% of the Moon is Illuminated
Sep 16
Waxing Gibbous
Sep 19
Full
Sep 26
Last Quarter
Oct 4
New
Oct 11
First Quarter

Weather History Calendar

Precipitation Actual month total 1.27 Average Month Total: 3.42
Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Scattered Clouds
Actual:
91 | 67 0.00
Average:
79 | 62 0.11
Rain
Actual:
89 | 71 0.19
Average:
79 | 61 0.11
Scattered Clouds
Actual:
84 | 66 0.00
Average:
79 | 61 0.11
Clear
Actual:
82 | 57 0.00
Average:
79 | 61 0.11
Clear
Actual:
85 | 59 0.00
Average:
79 | 60 0.11
Clear
Actual:
76 | 57 0.00
Average:
78 | 60 0.11
Clear
Actual:
80 | 53 0.00
Average:
78 | 60 0.11
Rain
Actual:
88 | 65 0.00
Average:
78 | 59 0.12
Partly Cloudy
Actual:
78 | 61 0.00
Average:
78 | 59 0.12
Partly Cloudy
Actual:
91 | 69 0.00
Average:
77 | 59 0.12
Clear
Actual:
94 | 73 0.00
Average:
77 | 58 0.12
Thunderstorm
Actual:
93 | 70 0.09
Average:
77 | 58 0.12
Scattered Clouds
Actual:
79 | 63 0.00
Average:
77 | 58 0.13
Scattered Clouds
Actual:
70 | 52 0.00
Average:
76 | 57 0.13
Clear
Actual:
76 | 46 0.00
Average:
76 | 57 0.13
Rain
Actual:
75 | 56 0.02
Average:
76 | 56 0.13
Rain
Actual:
67 | 48 0.00
Average:
76 | 56 0.13
Fog
Actual:
71 | 42 0.00
Average:
75 | 56 0.13
Scattered Clouds
Actual:
77 | 48 0.00
Average:
75 | 55 0.12
Scattered Clouds
Actual:
81 | 54 0.00
Average:
74 | 55 0.12
Rain
Actual:
79 | 58 0.92
Average:
74 | 55 0.12
Partly Cloudy
Actual:
72 | 54 0.00
Average:
73 | 54 0.12
Partly Cloudy
Actual:
66 | 48 0.00
Average:
73 | 54 0.11
Clear
Actual:
71 | 45 0.00
Average:
72 | 54 0.11
Clear
Actual:
75 | 48 0.05
Average:
72 | 53 0.10
Scattered Clouds
Actual:
73 | 54 0.00
Average:
72 | 53 0.10
Partly Cloudy
Actual:
71 | 53 0.00
Average:
71 | 52 0.10
Partly Cloudy
Actual:
69 | 54 0.00
Average:
71 | 52 0.09
Scattered Clouds
Actual:
72 | 48 0.00
Average:
71 | 51 0.09
Clear
Actual:
74 | 50 0.00
Average:
70 | 51 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
Sep high avg low high avg low high avg low high avg low high avg low high avg high sum  
1 91 78 67 74 69 66 96 74 48 29.88 29.84 29.79 10 10 10 10 5 - 0.00  
2 89 80 71 73 72 68 100 83 53 29.83 29.80 29.76 10 10 8 14 6 - 0.19 Rain
3 84 76 66 71 61 54 90 59 40 29.99 29.86 29.76 10 10 5 16 10 23 0.00  
4 82 69 57 59 55 52 86 60 36 30.11 30.06 30.00 10 10 9 10 6 - 0.00  
5 85 72 59 62 56 47 90 56 38 30.14 30.07 30.03 10 10 10 17 9 25 0.00  
6 76 66 57 53 48 42 82 56 36 30.28 30.21 30.16 10 10 10 12 6 - 0.00  
7 80 66 53 62 57 51 95 70 44 30.17 30.08 29.97 10 10 10 10 3 17 0.00  
8 88 76 65 66 63 58 94 70 42 30.08 29.95 29.90 10 10 10 12 5 20 0.00 Rain
9 78 69 61 68 59 50 88 69 57 30.23 30.17 30.10 10 10 10 9 7 - 0.00  
10 91 80 69 72 70 68 100 78 50 30.21 30.17 30.12 10 10 10 10 6 - 0.00  
11 94 84 73 73 71 67 92 70 40 30.17 30.12 30.04 10 10 10 14 6 18 0.00  
12 93 81 70 71 69 67 97 75 47 30.01 29.88 29.77 10 10 8 13 7 - 0.09 Rain , Thunderstorm
13 79 72 63 69 56 48 96 60 34 29.96 29.81 29.73 10 10 10 20 10 28 0.00  
14 70 61 52 48 44 42 82 55 37 30.19 30.08 29.97 10 10 10 13 9 18 0.00  
15 76 61 46 56 49 44 96 66 38 30.26 30.19 30.13 10 10 10 9 4 - 0.00  
16 75 66 56 60 56 51 88 75 50 30.25 30.13 30.07 10 10 10 14 8 - 0.02 Rain
17 67 57 48 52 43 35 87 63 31 30.45 30.38 30.25 10 10 10 13 9 - 0.00 Rain
18 71 56 42 50 45 40 100 77 37 30.37 30.31 30.22 10 6 0 10 2 - 0.00 Fog
19 77 62 48 56 53 46 95 71 45 30.23 30.17 30.11 10 10 10 10 5 - 0.00  
20 81 66 54 60 56 52 93 72 47 30.12 30.07 30.00 10 10 10 12 6 - 0.00  
21 79 68 58 67 63 56 100 87 52 30.00 29.78 29.70 10 8 2 22 10 28 0.92 Rain
22 72 66 54 63 55 47 96 73 43 29.97 29.83 29.73 10 10 10 13 8 20 0.00  
23 66 58 48 47 44 40 86 62 42 30.11 30.06 29.97 10 10 10 14 7 25 0.00  
24 71 58 45 49 45 42 92 69 37 30.13 30.06 29.96 10 10 10 13 4 - 0.00  
25 75 61 48 55 47 37 94 69 26 29.99 29.95 29.89 10 10 10 8 2 - 0.05  
26 73 64 54 58 53 50 91 73 46 30.10 30.02 29.94 10 10 10 10 3 - 0.00  
27 71 62 53 58 55 51 96 76 54 30.27 30.19 30.09 10 10 10 10 3 - 0.00  
28 69 61 54 55 53 51 96 78 56 30.33 30.28 30.24 10 10 10 10 4 - 0.00  
29 72 60 48 57 52 48 100 85 51 30.23 30.17 30.10 10 8 1 8 3 - 0.00  
30 74 62 50 55 51 49 96 73 40 30.12 30.08 30.02 10 10 10 8 2 - 0.00