Gaithersburg, MD

4:13 AM EST on November 13, 2019 (GMT -0500)
Montgomery County

Weather History for KGAI - September, 2019

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Monday, September 30, 2019

  Actual Average (WUND) Record (WUND)
Temperature  
Mean Temperature 67 °F -  
Max Temperature 71 °F - - (-1)
Min Temperature 64 °F - - (-1)
Cooling Degree Days 2    
Growing Degree Days 17 (Base 50)    
Moisture  
Dew Point 63 °F    
Average Humidity 86    
Maximum Humidity 94    
Minimum Humidity 78    
Precipitation  
Precipitation 0.17 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.28 in    
Wind  
Wind Speed 4 mph (SE)    
Max Wind Speed 12 mph    
Max Gust Speed -    
Visibility 10 miles    
Events Rain    
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. 30, 2019 Rise Set
Actual Time 7:03 AM EDT 6:53 PM EDT
Civil Twilight 6:36 AM EDT 7:19 PM EDT
Nautical Twilight 6:05 AM EDT 7:50 PM EDT
Astronomical Twilight 5:34 AM EDT 8:22 PM EDT
Moon 9:04 AM EDT (9/30) 8:28 PM EDT (9/30)
Length of Visible Light 12h 43m
Length of Day
11h 49m
Waxing Crescent, 5% of the Moon is Illuminated
Sep 30
Waxing Crescent
Oct 5
First Quarter
Oct 13
Full
Oct 21
Last Quarter
Oct 27
New

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 69.1 °F 64.0 °F 84% 30.29 in 10.0 mi Calm Calm - N/A   Clear
1:56 AM 68.0 °F 63.0 °F 84% 30.30 in 10.0 mi ESE 3.5 mph - N/A   Mostly Cloudy
2:56 AM 68.0 °F 63.0 °F 84% 30.29 in 10.0 mi Calm Calm - N/A   Overcast
3:56 AM 68.0 °F 63.0 °F 84% 30.28 in 10.0 mi ESE 3.5 mph - N/A   Overcast
4:56 AM 68.0 °F 63.0 °F 84% 30.28 in 10.0 mi Variable 3.5 mph - N/A   Overcast
5:56 AM 68.0 °F 62.1 °F 81% 30.29 in 10.0 mi ESE 3.5 mph - N/A   Overcast
6:56 AM 66.9 °F 63.0 °F 87% 30.30 in 10.0 mi Calm Calm - N/A   Overcast
7:56 AM 66.9 °F 63.0 °F 87% 30.31 in 10.0 mi Calm Calm - N/A   Overcast
8:56 AM 68.0 °F 64.0 °F 87% 30.32 in 10.0 mi ESE 6.9 mph - N/A   Overcast
9:11 AM 68.0 °F 64.4 °F 88% 30.29 in 10.0 mi Variable 5.8 mph - N/A   Overcast
9:56 AM 69.1 °F 64.0 °F 84% 30.32 in 10.0 mi SE 10.4 mph - N/A   Overcast
10:56 AM 66.9 °F 64.0 °F 90% 30.33 in 10.0 mi SE 6.9 mph - 0.00 in Rain Rain
11:56 AM 64.0 °F 62.1 °F 93% 30.33 in 10.0 mi SE 6.9 mph - 0.11 in Rain Light Rain
12:39 PM 64.4 °F 62.6 °F 94% 30.28 in 10.0 mi SE 5.8 mph - 0.03 in   Overcast
12:56 PM 66.0 °F 64.0 °F 93% 30.31 in 10.0 mi ESE 4.6 mph - 0.03 in Rain Light Rain
1:12 PM 66.2 °F 64.4 °F 94% 30.28 in 10.0 mi ESE 6.9 mph - 0.01 in Rain Light Rain
1:56 PM 68.0 °F 64.9 °F 90% 30.29 in 10.0 mi SE 8.1 mph - 0.02 in   Overcast
2:10 PM 68.0 °F 64.4 °F 88% 30.25 in 10.0 mi SE 11.5 mph - N/A   Overcast
2:28 PM 68.0 °F 64.4 °F 88% 30.24 in 10.0 mi ESE 9.2 mph - N/A   Overcast
2:52 PM 69.8 °F 64.4 °F 83% 30.23 in 10.0 mi SE 10.4 mph - 0.01 in   Overcast
2:56 PM 70.0 °F 64.0 °F 81% 30.26 in 10.0 mi SE 11.5 mph - 0.01 in   Overcast
3:56 PM 70.0 °F 63.0 °F 78% 30.25 in 10.0 mi SE 9.2 mph - N/A   Overcast
4:56 PM 69.1 °F 62.1 °F 78% 30.24 in 10.0 mi ESE 4.6 mph - N/A   Overcast
5:56 PM 69.1 °F 62.1 °F 78% 30.24 in 10.0 mi SE 5.8 mph - N/A   Overcast
6:56 PM 68.0 °F 62.1 °F 81% 30.23 in 10.0 mi SE 5.8 mph - N/A   Overcast
7:56 PM 66.9 °F 63.0 °F 87% 30.24 in 10.0 mi ESE 3.5 mph - N/A   Overcast
8:56 PM 68.0 °F 63.0 °F 84% 30.24 in 10.0 mi SE 5.8 mph - N/A   Overcast
9:56 PM 66.9 °F 64.0 °F 90% 30.25 in 10.0 mi SE 4.6 mph - 0.00 in   Overcast
10:56 PM 66.9 °F 64.0 °F 90% 30.25 in 10.0 mi SE 4.6 mph - 0.00 in   Overcast
11:56 PM 66.9 °F 63.0 °F 87% 30.24 in 10.0 mi SSE 4.6 mph - N/A   Overcast