Gaithersburg, MD

5:42 AM EST on November 17, 2019 (GMT -0500)
Montgomery County

Weather History for KGAI - September, 2019

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Saturday, September 7, 2019

  Actual Average (KCGS) Record (KCGS)
Temperature  
Mean Temperature 67 °F -  
Max Temperature 80 °F 82 °F 100 °F (1954)
Min Temperature 55 °F 61 °F 44 °F (1962)
Cooling Degree Days 2    
Growing Degree Days 17 (Base 50)    
Moisture  
Dew Point 58 °F    
Average Humidity 75    
Maximum Humidity 100    
Minimum Humidity 47    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.94 in    
Wind  
Wind Speed 3 mph (WNW)    
Max Wind Speed 13 mph    
Max Gust Speed 20 mph    
Visibility 10 miles    
Events      
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

Daily Weather History Graph

Daily Weather History Graph

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Astronomy

Sep. 07, 2019 Rise Set
Actual Time 6:42 AM EDT 7:30 PM EDT
Civil Twilight 6:15 AM EDT 7:57 PM EDT
Nautical Twilight 5:43 AM EDT 8:29 PM EDT
Astronomical Twilight 5:09 AM EDT 9:02 PM EDT
Moon 3:42 PM EDT (9/7) 12:34 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

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 59.0 °F 57.9 °F 96% 29.88 in 8.0 mi Calm Calm - N/A   Partly Cloudy
1:56 AM 59.0 °F 57.9 °F 96% 29.88 in 10.0 mi Calm Calm - N/A   Clear
2:56 AM 57.9 °F 57.0 °F 97% 29.87 in 9.0 mi Calm Calm - N/A   Clear
3:56 AM 57.0 °F 55.9 °F 96% 29.88 in 8.0 mi Calm Calm - N/A   Clear
4:56 AM 55.9 °F 55.9 °F 100% 29.89 in 8.0 mi Calm Calm - N/A   Partly Cloudy
5:56 AM 55.9 °F 55.0 °F 97% 29.90 in 9.0 mi Calm Calm - N/A   Clear
6:56 AM 55.0 °F 54.0 °F 96% 29.92 in 8.0 mi Calm Calm - N/A   Clear
7:56 AM 57.9 °F 57.0 °F 97% 29.93 in 10.0 mi Calm Calm - N/A   Clear
8:56 AM 66.0 °F 60.1 °F 81% 29.95 in 10.0 mi WNW 3.5 mph - N/A   Clear
9:56 AM 71.1 °F 60.1 °F 68% 29.96 in 10.0 mi NW 6.9 mph - N/A   Clear
10:56 AM 73.0 °F 61.0 °F 66% 29.96 in 10.0 mi NW 8.1 mph - N/A   Partly Cloudy
11:56 AM 73.9 °F 59.0 °F 59% 29.96 in 10.0 mi WNW 6.9 mph - N/A   Scattered Clouds
12:56 PM 77.0 °F 57.9 °F 52% 29.95 in 10.0 mi WNW 8.1 mph - N/A   Scattered Clouds
1:56 PM 78.1 °F 57.9 °F 50% 29.94 in 10.0 mi West 5.8 mph - N/A   Partly Cloudy
2:56 PM 79.0 °F 59.0 °F 50% 29.93 in 10.0 mi WNW 12.7 mph 19.6 mph N/A   Partly Cloudy
3:56 PM 79.0 °F 57.0 °F 47% 29.93 in 10.0 mi WNW 12.7 mph - N/A   Partly Cloudy
4:56 PM 77.0 °F 57.0 °F 50% 29.93 in 10.0 mi WNW 8.1 mph - N/A   Overcast
5:56 PM 77.0 °F 57.0 °F 50% 29.94 in 10.0 mi NW 9.2 mph - N/A   Mostly Cloudy
6:56 PM 75.9 °F 57.9 °F 54% 29.97 in 10.0 mi WNW 6.9 mph - N/A   Overcast
7:56 PM 69.1 °F 57.0 °F 65% 29.98 in 10.0 mi Calm Calm - N/A   Clear
8:56 PM 64.0 °F 59.0 °F 84% 30.00 in 10.0 mi Calm Calm - N/A   Clear
9:56 PM 64.9 °F 59.0 °F 81% 30.01 in 10.0 mi Calm Calm - N/A   Overcast
10:56 PM 64.0 °F 59.0 °F 84% 30.02 in 10.0 mi Calm Calm - N/A   Overcast
11:56 PM 64.0 °F 59.0 °F 84% 30.03 in 10.0 mi Calm Calm - N/A   Mostly Cloudy