Gaithersburg, MD

6:35 AM EST on November 22, 2019 (GMT -0500)
Montgomery County

Weather History for KGAI - September, 2019

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Sunday, September 8, 2019

  Actual Average (KCGS) Record (KCGS)
Temperature  
Mean Temperature 68 °F -  
Max Temperature 81 °F 83 °F 95 °F (1983)
Min Temperature 57 °F 61 °F 44 °F (1962)
Cooling Degree Days 4    
Growing Degree Days 18 (Base 50)    
Moisture  
Dew Point 58 °F    
Average Humidity 71    
Maximum Humidity 96    
Minimum Humidity 47    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.11 in    
Wind  
Wind Speed 1 mph (WNW)    
Max Wind Speed 5 mph    
Max Gust Speed -    
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. 08, 2019 Rise Set
Actual Time 6:43 AM EDT 7:28 PM EDT
Civil Twilight 6:16 AM EDT 7:55 PM EDT
Nautical Twilight 5:44 AM EDT 8:27 PM EDT
Astronomical Twilight 5:11 AM EDT 9:00 PM EDT
Moon 4:33 PM EDT (9/8) 1:23 AM EDT (9/8)
Length of Visible Light 13h 39m
Length of Day
12h 45m
Waxing Gibbous, 75% of the Moon is Illuminated
Sep 8
Waxing Gibbous
Sep 14
Full
Sep 21
Last Quarter
Sep 28
New
Oct 5
First Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 63.0 °F - 60.1 °F 90% 30.04 in 10.0 mi Calm Calm - N/A   Overcast
1:56 AM 62.1 °F - 57.9 °F 86% 30.05 in 10.0 mi Calm Calm - N/A   Partly Cloudy
2:56 AM 62.1 °F - 57.0 °F 84% 30.04 in 10.0 mi Calm Calm - N/A   Clear
3:56 AM 60.1 °F - 57.0 °F 90% 30.04 in 10.0 mi Calm Calm - N/A   Clear
4:56 AM 59.0 °F - 57.0 °F 93% 30.04 in 10.0 mi Calm Calm - N/A   Clear
5:56 AM 57.9 °F - 55.9 °F 93% 30.06 in 10.0 mi Calm Calm - N/A   Clear
6:56 AM 57.0 °F - 55.9 °F 96% 30.09 in 9.0 mi Calm Calm - N/A   Clear
7:56 AM 59.0 °F - 57.9 °F 96% 30.12 in 10.0 mi Calm Calm - N/A   Clear
8:56 AM 68.0 °F - 60.1 °F 76% 30.15 in 10.0 mi Variable 3.5 mph - N/A   Clear
9:56 AM 71.1 °F - 57.9 °F 63% 30.14 in 10.0 mi Calm Calm - N/A   Clear
10:56 AM 75.0 °F - 55.0 °F 50% 30.15 in 10.0 mi Calm Calm - N/A   Clear
11:56 AM 77.0 °F - 57.0 °F 50% 30.13 in 10.0 mi West 4.6 mph - N/A   Clear
12:56 PM 78.1 °F - 57.9 °F 50% 30.13 in 10.0 mi WNW 3.5 mph - N/A   Clear
1:56 PM 79.0 °F - 57.0 °F 47% 30.12 in 10.0 mi Variable 4.6 mph - N/A   Mostly Cloudy
2:56 PM 79.0 °F - 60.1 °F 52% 30.12 in 10.0 mi Calm Calm - N/A   Clear
3:56 PM 80.1 °F 80.9 °F 60.1 °F 50% 30.11 in 10.0 mi West 4.6 mph - N/A   Clear
4:56 PM 79.0 °F - 57.0 °F 47% 30.11 in 10.0 mi Calm Calm - N/A   Clear
5:56 PM 77.0 °F - 55.0 °F 47% 30.11 in 10.0 mi Calm Calm - N/A   Partly Cloudy
6:56 PM 73.9 °F - 57.0 °F 55% 30.13 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
7:56 PM 71.1 °F - 57.0 °F 61% 30.14 in 6.0 mi Calm Calm - N/A   Haze
8:56 PM 68.0 °F - 57.9 °F 70% 30.15 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:56 PM 66.9 °F - 59.0 °F 76% 30.16 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:56 PM 66.0 °F - 61.0 °F 84% 30.17 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:56 PM 63.0 °F - 61.0 °F 93% 30.17 in 10.0 mi Calm Calm - N/A   Partly Cloudy