Annapolis Naval Academy, MD

6:14 PM EST on December 14, 2019 (GMT -0500)
Annapolis Naval Academy

Weather History for KNAK - September, 2019

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Month of September, 2019

  Max Avg Min Sum
Temperature  
Max Temperature 96 °F 83 °F 73 °F
Mean Temperature 86 °F 76 °F 66 °F
Min Temperature 77 °F 70 °F 57 °F
Degree Days  
Heating Degree Days (base 65) 0 0 0 0
Cooling Degree Days (base 65) 21 11 1 331
Growing Degree Days (base 50) 36 26 16 782
Dew Point  
Dew Point 75 °F 63 °F 40 °F
Precipitation  
Precipitation 0.20 in 0.01 in 0.00 in 0.25 in
Snowdepth - - - -
Wind  
Wind 17 mph 6 mph 0 mph
Gust Wind 26 mph 20 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.40 in 30.10 in 29.75 in

Monthly Weather History Graph

Monthly Weather History Graph

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Astronomy

Sep. 07, 2019 Rise Set
Actual Time 6:39 AM EDT 7:27 PM EDT
Civil Twilight 6:12 AM EDT 7:54 PM EDT
Nautical Twilight 5:40 AM EDT 8:26 PM EDT
Astronomical Twilight 5:07 AM EDT 8:59 PM EDT
Moon 3:38 PM EDT (9/7) 12:32 AM EDT (9/7)
Length of Visible Light 13h 41m
Length of Day
12h 47m
Waxing Gibbous, 65% of the Moon is Illuminated
Sep 7
Waxing Gibbous
Sep 14
Full
Sep 21
Last Quarter
Sep 28
New
Oct 5
First Quarter

Daily Weather History & Observations

2019 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 84 78 73 70 66 64 79 66 53 30.30 30.24 30.18 10 10 10 17 7 - 0.00  
2 90 83 77 72 70 66 82 70 46 30.17 30.06 29.95 10 10 10 14 8 17 0.00  
3 87 80 75 71 65 60 79 60 43 30.07 30.02 30.00 10 10 10 10 6 - 0.00  
4 96 86 75 74 70 67 84 67 38 30.01 29.96 29.88 10 9 2 14 6 22 0.20 Rain
5 80 78 75 71 63 58 82 63 54 30.07 30.02 29.96 10 10 7 13 6 20 0.00  
6 75 72 69 65 62 60 81 73 64 29.95 29.82 29.75 10 8 1 16 11 26 0.05 Rain
7 84 74 63 62 59 56 81 61 39 29.96 29.88 29.82 10 10 10 8 4 - 0.00  
8 82 74 66 65 60 55 79 59 41 30.11 30.05 29.98 10 10 10 9 3 - 0.00  
9 84 78 73 67 64 58 81 64 44 30.25 30.18 30.11 10 10 10 12 3 - 0.00  
10 86 80 73 68 66 55 81 67 36 30.35 30.30 30.25 10 10 10 14 7 21 0.00  
11 89 80 73 75 70 65 84 73 59 30.27 30.18 30.07 10 10 6 15 6 23 0.00  
12 96 86 77 74 69 64 77 61 36 30.17 30.07 30.03 10 10 7 12 4 21 0.00  
13 75 73 71 68 62 58 84 67 57 30.40 30.34 30.21 10 9 3 16 11 24 0.00 Rain
14 81 76 71 70 65 60 74 67 60 30.36 30.26 30.16 10 10 10 14 8 20 0.00  
15 86 78 73 70 65 59 79 63 41 30.18 30.13 30.09 10 10 10 10 5 - 0.00  
16 86 78 69 70 66 62 84 68 48 30.09 30.04 29.96 10 10 10 13 2 - 0.00  
17 82 75 69 69 62 54 79 62 39 30.14 30.08 30.00 10 10 9 13 7 - 0.00  
18 78 72 66 60 56 51 76 57 39 30.28 30.20 30.13 10 10 10 17 5 22 0.00  
19 75 68 63 54 49 40 65 52 35 30.37 30.32 30.28 10 10 10 12 5 - 0.00  
20 77 66 57 60 55 49 78 62 41 30.34 30.27 30.21 10 10 10 16 5 17 0.00  
21 84 72 61 69 61 55 81 67 47 30.27 30.22 30.16 10 10 10 12 3 - 0.00  
22 87 80 72 71 67 65 79 68 49 30.19 30.11 30.02 10 10 10 14 5 - 0.00  
23 90 81 73 71 66 63 73 60 45 30.01 29.90 29.80 10 10 10 14 6 21 0.00  
24 82 76 72 64 56 51 68 50 36 29.92 29.87 29.83 10 10 9 12 7 18 0.00  
25 77 70 64 60 55 52 70 58 43 29.98 29.91 29.86 10 10 0 15 5 - 0.00  
26 80 72 66 71 64 58 84 75 58 29.96 29.84 29.76 10 10 9 13 6 - 0.00  
27 77 72 66 63 59 51 90 67 40 30.16 30.09 29.97 10 10 10 13 6 22 0.00  
28 82 75 69 73 69 60 93 83 66 30.12 30.10 30.05 10 10 7 14 6 20 0.00  
29 84 78 73 73 67 63 96 74 53 30.27 30.19 30.09 10 9 5 15 6 - 0.00  
30 73 71 69 65 63 57 84 75 65 30.30 30.24 30.19 10 10 10 15 8 - 0.00 Rain