Gaithersburg, MD

2:32 AM EST on November 19, 2019 (GMT -0500)
Montgomery County

Weather History for KGAI - September, 2019

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Month of September, 2019

  Max Avg Min Sum
Temperature  
Max Temperature 93 °F 83 °F 71 °F
Mean Temperature 80 °F 71 °F 61 °F
Min Temperature 70 °F 61 °F 46 °F
Degree Days  
Heating Degree Days (base 65) 4 0 0 7
Cooling Degree Days (base 65) 16 7 0 198
Growing Degree Days (base 50) 30 21 11 638
Dew Point  
Dew Point 75 °F 61 °F 39 °F
Precipitation  
Precipitation 0.17 in 0.01 in 0.00 in 0.34 in
Snowdepth - - - -
Wind  
Wind 17 mph 3 mph 0 mph
Gust Wind 23 mph 18 mph 16 mph
Sea Level Pressure  
Sea Level Pressure 30.44 in 30.15 in 29.82 in

Monthly Weather History Graph

Monthly Weather History Graph

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Astronomy

Sep. 17, 2019 Rise Set
Actual Time 6:51 AM EDT 7:14 PM EDT
Civil Twilight 6:24 AM EDT 7:40 PM EDT
Nautical Twilight 5:53 AM EDT 8:12 PM EDT
Astronomical Twilight 5:21 AM EDT 8:44 PM EDT
Moon 9:17 PM EDT (9/17) 9:52 AM EDT (9/17)
Length of Visible Light 13h 16m
Length of Day
12h 22m
Waning Gibbous, 89% of the Moon is Illuminated
Sep 17
Waning Gibbous
Sep 21
Last Quarter
Sep 28
New
Oct 5
First Quarter
Oct 13
Full

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 81 72 64 70 65 58 93 79 61 30.35 30.29 30.20 10 10 10 10 3 - 0.00 Rain
2 87 78 69 71 68 64 97 82 55 30.21 30.10 29.99 10 10 9 12 6 20 0.00 Thunderstorm
3 87 76 66 67 64 60 100 74 43 30.14 30.08 30.03 10 9 2 8 1 - 0.00  
4 91 80 70 73 69 63 93 74 50 30.05 30.00 29.94 10 10 9 10 6 - 0.00  
5 78 72 66 64 62 60 81 73 62 30.13 30.08 30.03 10 10 10 7 3 - 0.00  
6 75 67 60 62 60 57 96 78 57 30.01 29.90 29.82 10 10 10 7 2 - 0.00  
7 80 67 55 61 58 54 100 75 47 30.03 29.94 29.87 10 10 8 13 3 20 0.00  
8 81 68 57 61 58 55 96 71 47 30.17 30.11 30.04 10 10 6 5 1 - 0.00  
9 82 73 64 66 62 56 96 74 43 30.30 30.24 30.18 10 10 9 5 1 - 0.00 Rain
10 87 74 63 68 64 61 97 73 48 30.39 30.33 30.30 10 10 8 9 3 - 0.00  
11 93 80 68 72 68 65 94 76 47 30.31 30.21 30.09 10 10 10 6 4 - 0.00 Thunderstorm
12 91 80 68 75 70 66 96 81 48 30.23 30.14 30.09 10 9 1 12 3 17 0.16 Rain
13 72 68 64 70 62 59 97 86 76 30.44 30.36 30.20 10 9 4 9 5 - 0.01 Rain
14 78 70 62 68 64 57 87 80 69 30.40 30.30 30.19 10 10 10 10 6 - 0.00  
15 84 72 61 68 62 54 100 74 37 30.26 30.20 30.15 10 10 6 8 1 - 0.00  
16 90 74 59 65 62 58 97 69 40 30.15 30.09 30.01 10 10 10 5 1 - 0.00  
17 79 69 60 65 61 54 93 73 52 30.19 30.13 30.06 10 10 10 7 3 - 0.00 Rain
18 78 64 53 58 52 48 90 66 37 30.32 30.25 30.18 10 10 10 8 1 - 0.00  
19 73 61 50 54 48 39 97 68 35 30.42 30.36 30.33 10 10 10 6 2 - 0.00  
20 79 62 46 55 50 45 97 70 38 30.38 30.32 30.26 10 10 10 8 2 - 0.00  
21 89 70 53 64 59 52 97 72 43 30.32 30.26 30.21 10 10 10 7 1 - 0.00  
22 91 76 62 68 65 61 97 73 46 30.24 30.16 30.06 10 10 6 8 2 - 0.00  
23 91 78 66 66 63 57 90 63 33 30.05 29.96 29.87 10 10 10 15 5 20 0.00 Rain
24 78 68 57 64 55 49 90 65 40 29.99 29.94 29.89 10 10 10 17 6 23 0.00  
25 82 66 51 55 52 49 96 65 33 30.03 29.96 29.91 10 10 10 9 2 - 0.00  
26 86 70 57 63 58 55 96 73 44 30.02 29.89 29.83 10 10 10 9 2 - 0.00  
27 82 68 53 59 55 52 97 68 39 30.21 30.13 30.03 10 10 6 12 2 17 0.00  
28 86 73 62 71 65 57 93 78 59 30.17 30.14 30.09 10 10 10 10 4 - 0.00  
29 86 75 66 68 65 62 96 74 53 30.31 30.25 30.16 10 10 10 5 1 - 0.00  
30 71 67 64 65 63 62 94 86 78 30.33 30.28 30.23 10 10 10 12 4 - 0.17 Rain