Gaithersburg, MD

2:56 PM EST on November 21, 2019 (GMT -0500)
Montgomery County

Weather History for KGAI - September, 2019

Change the Weather History Date:

Monday, September 9, 2019

  Actual Average (KCGS) Record (KCGS)
Temperature  
Mean Temperature 73 °F -  
Max Temperature 82 °F 81 °F 95 °F (2015)
Min Temperature 64 °F 60 °F 43 °F (1986)
Cooling Degree Days 8    
Growing Degree Days 23 (Base 50)    
Moisture  
Dew Point 62 °F    
Average Humidity 74    
Maximum Humidity 96    
Minimum Humidity 43    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.24 in    
Wind  
Wind Speed 1 mph (South)    
Max Wind Speed 5 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

Search for Another Location

Airport or City:

Astronomy

Sep. 09, 2019 Rise Set
Actual Time 6:44 AM EDT 7:27 PM EDT
Civil Twilight 6:17 AM EDT 7:54 PM EDT
Nautical Twilight 5:45 AM EDT 8:26 PM EDT
Astronomical Twilight 5:12 AM EDT 8:58 PM EDT
Moon 5:19 PM EDT (9/9) 2:15 AM EDT (9/9)
Length of Visible Light 13h 36m
Length of Day
12h 42m
Waxing Gibbous, 83% of the Moon is Illuminated
Sep 9
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 64.0 °F - 61.0 °F 90% 30.18 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:56 AM 64.0 °F - 61.0 °F 90% 30.18 in 10.0 mi Calm Calm - N/A   Overcast
2:56 AM 64.0 °F - 61.0 °F 90% 30.18 in 10.0 mi Calm Calm - N/A   Overcast
3:56 AM 64.9 °F - 62.1 °F 90% 30.18 in 10.0 mi Calm Calm - N/A   Overcast
4:56 AM 64.0 °F - 61.0 °F 90% 30.19 in 10.0 mi Calm Calm - N/A   Overcast
5:56 AM 64.0 °F - 62.1 °F 93% 30.21 in 10.0 mi Calm Calm - N/A Rain Light Rain
6:56 AM 64.0 °F - 63.0 °F 96% 30.22 in 9.0 mi Calm Calm - N/A   Overcast
7:56 AM 68.0 °F - 61.0 °F 78% 30.23 in 10.0 mi Calm Calm - N/A   Overcast
8:56 AM 70.0 °F - 61.0 °F 73% 30.25 in 10.0 mi Variable 3.5 mph - N/A   Overcast
9:56 AM 72.0 °F - 63.0 °F 73% 30.27 in 10.0 mi Calm Calm - N/A   Overcast
10:56 AM 75.0 °F - 63.0 °F 66% 30.27 in 10.0 mi SSE 3.5 mph - N/A   Mostly Cloudy
11:56 AM 77.0 °F - 62.1 °F 60% 30.27 in 10.0 mi SE 4.6 mph - N/A   Overcast
12:56 PM 80.1 °F 80.2 °F 55.9 °F 43% 30.26 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
1:56 PM 82.0 °F 83.0 °F 62.1 °F 51% 30.25 in 10.0 mi SSE 3.5 mph - N/A   Mostly Cloudy
2:56 PM 81.0 °F 82.2 °F 63.0 °F 54% 30.25 in 10.0 mi WSW 4.6 mph - N/A   Overcast
3:56 PM 80.1 °F 81.5 °F 63.0 °F 56% 30.24 in 10.0 mi WNW 3.5 mph - N/A   Overcast
4:56 PM 79.0 °F - 64.9 °F 62% 30.25 in 10.0 mi Variable 3.5 mph - N/A   Overcast
5:56 PM 78.1 °F - 63.0 °F 60% 30.25 in 10.0 mi Calm Calm - N/A   Overcast
6:56 PM 75.9 °F - 62.1 °F 62% 30.25 in 10.0 mi Calm Calm - N/A   Scattered Clouds
7:56 PM 72.0 °F - 66.0 °F 81% 30.26 in 10.0 mi Calm Calm - N/A   Overcast
8:56 PM 70.0 °F - 63.0 °F 78% 30.28 in 10.0 mi Calm Calm - N/A   Scattered Clouds
9:56 PM 68.0 °F - 61.0 °F 78% 30.30 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:56 PM 66.9 °F - 60.1 °F 79% 30.30 in 10.0 mi Calm Calm - N/A   Partly Cloudy
11:56 PM 66.0 °F - 60.1 °F 81% 30.30 in 10.0 mi Calm Calm - N/A   Clear