Gaithersburg, MD

2:02 AM EST on November 20, 2019 (GMT -0500)
Montgomery County

Weather History for KGAI - September, 2019

Change the Weather History Date:

Sunday, September 1, 2019

  Actual Average (WUND) Record (WUND)
Temperature  
Mean Temperature 72 °F -  
Max Temperature 81 °F - - (-1)
Min Temperature 64 °F - - (-1)
Cooling Degree Days 7    
Growing Degree Days 22 (Base 50)    
Moisture  
Dew Point 65 °F    
Average Humidity 79    
Maximum Humidity 93    
Minimum Humidity 61    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.29 in    
Wind  
Wind Speed 3 mph (SE)    
Max Wind Speed 10 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. 01, 2019 Rise Set
Actual Time 6:37 AM EDT 7:39 PM EDT
Civil Twilight 6:09 AM EDT 8:07 PM EDT
Nautical Twilight 5:36 AM EDT 8:39 PM EDT
Astronomical Twilight 5:02 AM EDT 9:13 PM EDT
Moon 9:03 AM EDT (9/1) 9:26 PM EDT (9/1)
Length of Visible Light 13h 57m
Length of Day
13h 02m
Waxing Crescent, 8% of the Moon is Illuminated
Sep 1
Waxing Crescent
Sep 5
First Quarter
Sep 14
Full
Sep 21
Last Quarter
Sep 28
New

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 68.0 °F - 59.0 °F 73% 30.31 in 10.0 mi Calm Calm - N/A   Partly Cloudy
1:56 AM 66.9 °F - 57.9 °F 73% 30.30 in 10.0 mi Variable 3.5 mph - N/A   Partly Cloudy
2:56 AM 68.0 °F - 60.1 °F 76% 30.31 in 10.0 mi Calm Calm - N/A   Overcast
3:56 AM 66.0 °F - 61.0 °F 84% 30.31 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:56 AM 66.0 °F - 63.0 °F 90% 30.31 in 10.0 mi Calm Calm - N/A   Overcast
5:56 AM 64.9 °F - 62.1 °F 90% 30.31 in 10.0 mi Calm Calm - N/A   Scattered Clouds
6:56 AM 64.9 °F - 63.0 °F 93% 30.32 in 10.0 mi Calm Calm - N/A   Scattered Clouds
7:56 AM 66.9 °F - 63.0 °F 87% 30.32 in 10.0 mi Calm Calm - N/A   Clear
8:56 AM 69.1 °F - 64.0 °F 84% 30.35 in 10.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
9:56 AM 73.0 °F - 64.9 °F 76% 30.35 in 10.0 mi Variable 3.5 mph - N/A   Overcast
10:56 AM 73.9 °F - 64.9 °F 73% 30.35 in 10.0 mi Variable 4.6 mph - N/A   Overcast
11:56 AM 75.0 °F - 66.0 °F 73% 30.35 in 10.0 mi SE 6.9 mph - N/A   Overcast
12:38 PM 77.0 °F - 66.2 °F 69% 30.31 in 10.0 mi SE 8.1 mph - N/A   Overcast
12:56 PM 77.0 °F - 66.0 °F 69% 30.33 in 10.0 mi SSE 8.1 mph - N/A   Overcast
1:49 PM 78.8 °F - 66.2 °F 65% 30.29 in 10.0 mi Variable 4.6 mph - N/A   Mostly Cloudy
1:56 PM 80.1 °F 82.3 °F 66.9 °F 64% 30.31 in 10.0 mi South 8.1 mph - N/A   Mostly Cloudy
2:35 PM 80.6 °F 82.7 °F 66.2 °F 61% 30.27 in 10.0 mi SE 10.4 mph - N/A   Scattered Clouds
2:56 PM 79.0 °F - 66.0 °F 64% 30.29 in 10.0 mi SSE 8.1 mph - N/A   Mostly Cloudy
3:56 PM 79.0 °F - 68.0 °F 69% 30.28 in 10.0 mi Variable 4.6 mph - N/A   Overcast
4:56 PM 77.0 °F - 68.0 °F 74% 30.27 in 10.0 mi SE 9.2 mph - N/A Rain Light Rain
5:56 PM 73.0 °F - 70.0 °F 90% 30.26 in 10.0 mi Calm Calm - N/A   Overcast
6:56 PM 72.0 °F - 69.1 °F 91% 30.25 in 10.0 mi Calm Calm - N/A   Overcast
7:56 PM 72.0 °F - 66.9 °F 84% 30.24 in 10.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
8:56 PM 71.1 °F - 66.9 °F 87% 30.25 in 10.0 mi Variable 3.5 mph - N/A   Mostly Cloudy
9:12 PM 71.6 °F - 66.2 °F 83% 30.21 in 10.0 mi East 3.5 mph - N/A   Overcast
9:56 PM 71.1 °F - 66.0 °F 84% 30.24 in 10.0 mi Variable 4.6 mph - N/A   Mostly Cloudy
10:56 PM 70.0 °F - 66.9 °F 90% 30.24 in 10.0 mi ESE 5.8 mph - N/A   Mostly Cloudy
11:19 PM 69.8 °F - 66.2 °F 88% 30.20 in 10.0 mi ESE 8.1 mph - N/A   Partly Cloudy
11:56 PM 70.0 °F - 66.9 °F 90% 30.22 in 10.0 mi Variable 5.8 mph - N/A   Scattered Clouds