Gaithersburg, MD

5:34 AM EST on November 15, 2019 (GMT -0500)
Montgomery County

Weather History for KGAI - September, 2019

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Thursday, September 19, 2019

  Actual Average (WUND) Record (WUND)
Temperature  
Mean Temperature 61 °F -  
Max Temperature 73 °F - - (-1)
Min Temperature 50 °F - - (-1)
Degree Days  
Heating Degree Days 4    
Growing Degree Days 11 (Base 50)    
Moisture  
Dew Point 48 °F    
Average Humidity 68    
Maximum Humidity 97    
Minimum Humidity 35    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.36 in    
Wind  
Wind Speed 2 mph (ESE)    
Max Wind Speed 6 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. 19, 2019 Rise Set
Actual Time 6:53 AM EDT 7:10 PM EDT
Civil Twilight 6:26 AM EDT 7:37 PM EDT
Nautical Twilight 5:55 AM EDT 8:09 PM EDT
Astronomical Twilight 5:23 AM EDT 8:40 PM EDT
Moon 10:20 PM EDT (9/19) 11:52 AM EDT (9/19)
Length of Visible Light 13h 11m
Length of Day
12h 17m
Waning Gibbous, 74% of the Moon is Illuminated
Sep 19
Waning Gibbous
Sep 21
Last Quarter
Sep 28
New
Oct 5
First Quarter
Oct 13
Full

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:56 AM 57.9 °F 54.0 °F 87% 30.33 in 10.0 mi East 3.5 mph - N/A   Clear
1:56 AM 57.0 °F 53.1 °F 87% 30.34 in 10.0 mi Variable 3.5 mph - N/A   Clear
2:56 AM 55.0 °F 52.0 °F 89% 30.33 in 10.0 mi Calm Calm - N/A   Clear
3:56 AM 52.0 °F 51.1 °F 97% 30.35 in 10.0 mi Calm Calm - N/A   Clear
4:56 AM 51.1 °F 50.0 °F 96% 30.36 in 10.0 mi Calm Calm - N/A   Clear
5:56 AM 51.1 °F 50.0 °F 96% 30.36 in 10.0 mi Calm Calm - N/A   Clear
6:56 AM 50.0 °F 48.9 °F 96% 30.38 in 10.0 mi Calm Calm - N/A   Clear
7:56 AM 54.0 °F 51.1 °F 90% 30.38 in 10.0 mi Calm Calm - N/A   Clear
8:56 AM 59.0 °F 52.0 °F 78% 30.40 in 10.0 mi Calm Calm - N/A   Clear
9:56 AM 61.0 °F 51.1 °F 70% 30.42 in 10.0 mi Variable 3.5 mph - N/A   Scattered Clouds
10:12 AM 60.8 °F 51.8 °F 72% 30.37 in 10.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
10:48 AM 62.6 °F 51.8 °F 68% 30.37 in 10.0 mi Calm Calm - N/A   Scattered Clouds
10:56 AM 64.0 °F 51.1 °F 63% 30.42 in 10.0 mi Variable 4.6 mph - N/A   Scattered Clouds
11:56 AM 66.9 °F 48.9 °F 52% 30.40 in 10.0 mi Variable 5.8 mph - N/A   Partly Cloudy
12:56 PM 70.0 °F 48.0 °F 46% 30.40 in 10.0 mi East 3.5 mph - N/A   Clear
1:56 PM 69.1 °F 46.0 °F 44% 30.38 in 10.0 mi ESE 5.8 mph - N/A   Clear
2:56 PM 71.1 °F 44.1 °F 38% 30.36 in 10.0 mi Variable 4.6 mph - N/A   Clear
3:56 PM 72.0 °F 44.1 °F 37% 30.34 in 10.0 mi ESE 5.8 mph - N/A   Clear
4:56 PM 71.1 °F 44.1 °F 38% 30.34 in 10.0 mi Variable 3.5 mph - N/A   Clear
5:56 PM 70.0 °F 41.0 °F 35% 30.34 in 10.0 mi Calm Calm - N/A   Clear
6:56 PM 66.0 °F 39.0 °F 37% 30.35 in 10.0 mi Calm Calm - N/A   Clear
7:56 PM 60.1 °F 39.9 °F 47% 30.34 in 10.0 mi Calm Calm - N/A   Clear
8:56 PM 57.0 °F 45.0 °F 64% 30.35 in 10.0 mi Variable 3.5 mph - N/A   Clear
9:56 PM 55.0 °F 46.0 °F 72% 30.34 in 10.0 mi SE 4.6 mph - N/A   Clear
10:56 PM 52.0 °F 46.9 °F 83% 30.35 in 10.0 mi Calm Calm - N/A   Clear
11:56 PM 50.0 °F 46.0 °F 86% 30.34 in 10.0 mi Calm Calm - N/A   Clear