Gaithersburg, MD

7:59 PM EDT on October 14, 2019 (GMT -0400)
Montgomery County

Weather History for KGAI - September, 2019

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Wednesday, September 18, 2019

  Actual Average (WUND) Record (WUND)
Temperature  
Mean Temperature 64 °F -  
Max Temperature 78 °F - - (-1)
Min Temperature 53 °F - - (-1)
Degree Days  
Heating Degree Days 1    
Growing Degree Days 14 (Base 50)    
Moisture  
Dew Point 52 °F    
Average Humidity 66    
Maximum Humidity 90    
Minimum Humidity 37    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.25 in    
Wind  
Wind Speed 1 mph (East)    
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. 18, 2019 Rise Set
Actual Time 6:52 AM EDT 7:12 PM EDT
Civil Twilight 6:25 AM EDT 7:39 PM EDT
Nautical Twilight 5:54 AM EDT 8:10 PM EDT
Astronomical Twilight 5:22 AM EDT 8:42 PM EDT
Moon 9:47 PM EDT (9/18) 10:52 AM EDT (9/18)
Length of Visible Light 13h 13m
Length of Day
12h 20m
Waning Gibbous, 82% of the Moon is Illuminated
Sep 18
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 59.0 °F 54.0 °F 83% 30.18 in 10.0 mi Calm Calm - N/A   Clear
1:56 AM 57.0 °F 53.1 °F 87% 30.19 in 10.0 mi Calm Calm - N/A   Clear
2:56 AM 55.9 °F 53.1 °F 90% 30.19 in 10.0 mi Calm Calm - N/A   Clear
3:56 AM 55.9 °F 51.1 °F 84% 30.19 in 10.0 mi Calm Calm - N/A   Clear
4:56 AM 57.0 °F 50.0 °F 77% 30.20 in 10.0 mi Calm Calm - N/A   Clear
5:56 AM 54.0 °F 50.0 °F 86% 30.21 in 10.0 mi Calm Calm - N/A   Clear
6:56 AM 53.1 °F 50.0 °F 89% 30.23 in 10.0 mi Calm Calm - N/A   Clear
7:56 AM 55.0 °F 51.1 °F 86% 30.25 in 10.0 mi Calm Calm - N/A   Partly Cloudy
8:56 AM 63.0 °F 55.0 °F 75% 30.26 in 10.0 mi NE 3.5 mph - N/A   Scattered Clouds
9:43 AM 66.2 °F 57.2 °F 73% 30.24 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:56 AM 66.9 °F 57.9 °F 73% 30.27 in 10.0 mi Variable 3.5 mph - N/A   Overcast
10:35 AM 69.8 °F 55.4 °F 60% 30.24 in 10.0 mi Variable 4.6 mph - N/A   Partly Cloudy
10:56 AM 69.1 °F 57.0 °F 65% 30.27 in 10.0 mi Calm Calm - N/A   Clear
11:56 AM 72.0 °F 54.0 °F 53% 30.26 in 10.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
12:56 PM 73.9 °F 52.0 °F 46% 30.26 in 10.0 mi Variable 4.6 mph - N/A   Mostly Cloudy
1:56 PM 73.9 °F 50.0 °F 43% 30.25 in 10.0 mi Variable 3.5 mph - N/A   Partly Cloudy
2:56 PM 73.9 °F 50.0 °F 43% 30.25 in 10.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
3:56 PM 75.0 °F 48.0 °F 38% 30.25 in 10.0 mi Calm Calm - N/A   Scattered Clouds
4:56 PM 75.9 °F 48.0 °F 37% 30.24 in 10.0 mi Calm Calm - N/A   Clear
5:56 PM 73.9 °F 48.0 °F 40% 30.24 in 10.0 mi Variable 5.8 mph - N/A   Clear
6:56 PM 70.0 °F 48.9 °F 47% 30.26 in 10.0 mi Calm Calm - N/A   Clear
7:56 PM 66.0 °F 50.0 °F 56% 30.27 in 10.0 mi Variable 3.5 mph - N/A   Clear
8:56 PM 63.0 °F 50.0 °F 63% 30.29 in 10.0 mi Calm Calm - N/A   Clear
9:56 PM 62.1 °F 51.1 °F 67% 30.29 in 10.0 mi Calm Calm - N/A   Clear
10:56 PM 59.0 °F 52.0 °F 78% 30.32 in 10.0 mi ESE 8.1 mph - N/A   Clear
11:56 PM 57.9 °F 54.0 °F 87% 30.32 in 10.0 mi Variable 3.5 mph - N/A   Clear