Gaithersburg, MD

7:31 AM EST on November 17, 2019 (GMT -0500)
Montgomery County

Weather History for KGAI - September, 2019

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Sunday, September 22, 2019

  Actual Average (KCGS) Record (KCGS)
Temperature  
Mean Temperature 76 °F -  
Max Temperature 91 °F 78 °F 97 °F (1970)
Min Temperature 62 °F 58 °F 35 °F (1962)
Cooling Degree Days 11    
Growing Degree Days 26 (Base 50)    
Moisture  
Dew Point 65 °F    
Average Humidity 73    
Maximum Humidity 97    
Minimum Humidity 46    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.16 in    
Wind  
Wind Speed 2 mph (SSE)    
Max Wind Speed 8 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. 22, 2019 Rise Set
Actual Time 6:56 AM EDT 7:06 PM EDT
Civil Twilight 6:29 AM EDT 7:32 PM EDT
Nautical Twilight 5:58 AM EDT 8:03 PM EDT
Astronomical Twilight 5:26 AM EDT 8:35 PM EDT
Moon No Moon Rise 2:56 PM EDT (9/22)
Length of Visible Light 13h 03m
Length of Day
12h 09m
Last Quarter, 44% of the Moon is Illuminated
Sep 22
Last Quarter
Sep 28
New
Oct 5
First Quarter
Oct 13
Full
Oct 21
Last 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 66.0 °F - 64.0 °F 93% 30.24 in 10.0 mi Calm Calm - N/A   Clear
1:56 AM 66.0 °F - 63.0 °F 90% 30.23 in 10.0 mi Calm Calm - N/A   Clear
2:56 AM 66.0 °F - 63.0 °F 90% 30.21 in 10.0 mi Calm Calm - N/A   Clear
3:56 AM 63.0 °F - 62.1 °F 97% 30.20 in 10.0 mi Calm Calm - N/A   Clear
4:56 AM 63.0 °F - 62.1 °F 97% 30.20 in 10.0 mi Calm Calm - N/A   Clear
5:56 AM 63.0 °F - 62.1 °F 97% 30.20 in 10.0 mi Calm Calm - N/A   Clear
6:56 AM 62.1 °F - 61.0 °F 96% 30.21 in 6.0 mi Calm Calm - N/A   Clear
7:56 AM 63.0 °F - 62.1 °F 97% 30.22 in 10.0 mi Calm Calm - N/A   Clear
8:56 AM 73.0 °F - 64.9 °F 76% 30.23 in 10.0 mi Calm Calm - N/A   Clear
9:56 AM 77.0 °F - 66.9 °F 71% 30.22 in 10.0 mi West 3.5 mph - N/A   Clear
10:56 AM 81.0 °F 83.8 °F 68.0 °F 65% 30.22 in 10.0 mi NW 3.5 mph - N/A   Clear
11:56 AM 84.0 °F 86.5 °F 66.9 °F 56% 30.20 in 10.0 mi Calm Calm - N/A   Clear
1:56 PM 88.0 °F 90.7 °F 66.9 °F 49% 30.14 in 10.0 mi Variable 5.8 mph - N/A   Partly Cloudy
2:56 PM 89.1 °F 92.9 °F 68.0 °F 50% 30.12 in 10.0 mi SSE 8.1 mph - N/A   Clear
3:56 PM 90.0 °F 93.6 °F 68.0 °F 48% 30.10 in 10.0 mi SSE 6.9 mph - N/A   Mostly Cloudy
4:56 PM 88.0 °F 90.3 °F 66.0 °F 48% 30.10 in 10.0 mi South 4.6 mph - N/A   Clear
5:56 PM 88.0 °F 89.6 °F 64.9 °F 46% 30.09 in 10.0 mi SSW 6.9 mph - N/A   Clear
6:56 PM 84.9 °F 87.1 °F 66.0 °F 53% 30.09 in 10.0 mi South 5.8 mph - N/A   Clear
7:56 PM 80.1 °F 82.1 °F 66.0 °F 62% 30.09 in 10.0 mi SE 5.8 mph - N/A   Clear
8:56 PM 75.9 °F - 66.0 °F 71% 30.09 in 10.0 mi ESE 3.5 mph - N/A   Clear
9:56 PM 73.9 °F - 68.0 °F 82% 30.08 in 10.0 mi ESE 4.6 mph - N/A   Clear
10:56 PM 75.0 °F - 68.0 °F 79% 30.07 in 10.0 mi SE 6.9 mph - N/A   Clear
11:56 PM 75.9 °F - 66.9 °F 74% 30.06 in 10.0 mi South 5.8 mph - N/A   Clear