History for Gaithersburg, MD

Tuesday, August 21, 2012 — View Current Conditions
Tuesday, August 21, 2012
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Daily Weekly Monthly Custom
  Actual Average (KCGS) Record (KCGS)
Temperature
Mean Temperature 68 °F -  
Max Temperature 80 °F 84 °F 103 °F (1983)
Min Temperature 57 °F 62 °F 53 °F (1957)
Cooling Degree Days 4    
Growing Degree Days 18 (Base 50)    
Moisture
Dew Point 62 °F    
Average Humidity 80    
Maximum Humidity 100    
Minimum Humidity 45    
Precipitation
Precipitation 0.00 in - - ()
Sea Level Pressure
Sea Level Pressure 30.07 in    
Wind
Wind Speed 1 mph (East)    
Max Wind Speed 7 mph    
Max Gust Speed -    
Visibility 7 miles    
Events      
Averages and records for this station are not official NWS values.
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary
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Local Photos
Morning Gleam
"With the first gleam of morning rays, the garden is a prism of a thousand hues refracted in tiny does of crystal dew, a dazzling quilt of millefleur...
Visit WunderPhotos
Astronomy
May. 25, 2013 Rise Set
Actual Time 6:27 AM EDT 7:54 PM EDT
Civil Twilight 5:59 AM EDT 8:22 PM EDT
Nautical Twilight 5:25 AM EDT 8:56 PM EDT
Astronomical Twilight 4:50 AM EDT 9:32 PM EDT
Moon 10:53 AM EDT (8/21) 9:56 PM EDT (8/21)
Length Of Visible Light 14h 23m
Length of Day
13h 27m
Waxing Crescent, 19% of the Moon is Illuminated
Aug 21
Waxing Crescent
Aug 24
First Quarter
Aug 31
Full
Sep 8
Last Quarter
Sep 15
New
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Hourly Observations
Time (EDT) Temp. Heat Index Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 60.8 °F - 60.8 °F 100% 30.01 in 5.0 mi Calm Calm - N/A   Partly Cloudy
12:55 AM 62.6 °F - 60.8 °F 94% 30.01 in 5.0 mi Calm Calm - N/A   Partly Cloudy
1:15 AM 62.6 °F - 60.8 °F 94% 30.01 in 3.0 mi Calm Calm - N/A   Clear
1:35 AM 62.6 °F - 60.8 °F 94% 30.01 in 3.0 mi Calm Calm - N/A   Clear
2:15 AM 60.8 °F - 60.8 °F 100% 30.02 in 5.0 mi Calm Calm - N/A   Overcast
2:35 AM 62.6 °F - 60.8 °F 94% 30.02 in 5.0 mi Calm Calm - N/A   Scattered Clouds
2:55 AM 60.8 °F - 60.8 °F 100% 30.02 in 3.0 mi Calm Calm - N/A   Clear
3:15 AM 60.8 °F - 60.8 °F 100% 30.02 in 3.0 mi Calm Calm - N/A   Clear
3:35 AM 60.8 °F - 60.8 °F 100% 30.02 in 1.0 mi Calm Calm - N/A   Clear
3:55 AM 60.8 °F - 60.8 °F 100% 30.02 in 1.8 mi Calm Calm - N/A   Clear
4:15 AM 59.0 °F - 59.0 °F 100% 30.02 in 0.5 mi Calm Calm - N/A   Unknown
4:35 AM 57.2 °F - 57.2 °F 100% 30.03 in 3.0 mi Calm Calm - N/A   Clear
4:55 AM 59.0 °F - 59.0 °F 100% 30.02 in 0.8 mi Calm Calm - N/A   Unknown
5:15 AM 57.2 °F - 57.2 °F 100% 30.03 in 0.5 mi Calm Calm - N/A   Scattered Clouds
5:35 AM 59.0 °F - 57.2 °F 94% 30.03 in 1.2 mi Calm Calm - N/A   Clear
5:55 AM 59.0 °F - 59.0 °F 100% 30.04 in 2.5 mi Calm Calm - N/A   Clear
6:15 AM 60.8 °F - 60.8 °F 100% 30.04 in 2.0 mi NNW 3.5 mph - N/A   Overcast
6:35 AM 59.0 °F - 59.0 °F 100% 30.05 in 1.5 mi Calm Calm - N/A   Overcast
6:55 AM 60.8 °F - 60.8 °F 100% 30.04 in 1.0 mi Calm Calm - N/A   Overcast
7:15 AM 60.8 °F - 60.8 °F 100% 30.05 in 1.2 mi Calm Calm - N/A   Overcast
7:35 AM 62.6 °F - 62.6 °F 100% 30.06 in 1.5 mi Calm Calm - N/A   Overcast
7:55 AM 62.6 °F - 62.6 °F 100% 30.06 in 2.5 mi Calm Calm - N/A   Overcast
8:15 AM 62.6 °F - 62.6 °F 100% 30.07 in 3.0 mi Calm Calm - N/A   Mostly Cloudy
8:35 AM 62.6 °F - 62.6 °F 100% 30.08 in 5.0 mi Calm Calm - N/A   Clear
8:55 AM 64.4 °F - 62.6 °F 94% 30.07 in 7.0 mi Calm Calm - N/A   Clear
9:15 AM 64.4 °F - 64.4 °F 100% 30.08 in 10.0 mi Calm Calm - N/A   Clear
9:35 AM 66.2 °F - 62.6 °F 88% 30.08 in 10.0 mi Calm Calm - N/A   Clear
9:55 AM 69.8 °F - 62.6 °F 78% 30.09 in 10.0 mi Calm Calm - N/A   Clear
10:15 AM 69.8 °F - 64.4 °F 83% 30.09 in 10.0 mi Calm Calm - N/A   Clear
10:35 AM 71.6 °F - 62.6 °F 73% 30.09 in 10.0 mi Calm Calm - N/A   Clear
10:55 AM 71.6 °F - 64.4 °F 78% 30.09 in 10.0 mi Calm Calm - N/A   Clear
11:15 AM 73.4 °F - 64.4 °F 73% 30.10 in 10.0 mi Calm Calm - N/A   Clear
11:35 AM 75.2 °F - 64.4 °F 69% 30.10 in 8.0 mi Calm Calm - N/A   Clear
11:55 AM 75.2 °F - 62.6 °F 65% 30.10 in 10.0 mi NE 3.5 mph - N/A   Clear
12:15 PM 75.2 °F - 62.6 °F 65% 30.09 in 10.0 mi Calm Calm - N/A   Clear
12:35 PM 77.0 °F - 62.6 °F 61% 30.10 in 10.0 mi NNW 3.5 mph - N/A   Clear
12:55 PM 77.0 °F - 62.6 °F 61% 30.09 in 10.0 mi NNW 3.5 mph - N/A   Partly Cloudy
1:15 PM 77.0 °F - 60.8 °F 57% 30.09 in 10.0 mi Calm Calm - N/A   Partly Cloudy
1:35 PM 78.8 °F - 62.6 °F 57% 30.09 in 10.0 mi NW 6.9 mph - N/A   Partly Cloudy
1:55 PM 78.8 °F - 62.6 °F 57% 30.09 in 10.0 mi NNW 5.8 mph - N/A   Scattered Clouds
2:15 PM 78.8 °F - 60.8 °F 54% 30.09 in 10.0 mi NNE 4.6 mph - N/A   Mostly Cloudy
2:35 PM 78.8 °F - 62.6 °F 57% 30.08 in 10.0 mi Calm Calm - N/A   Scattered Clouds
2:55 PM 75.2 °F - 60.8 °F 61% 30.08 in 10.0 mi Calm Calm - N/A   Overcast
3:15 PM 78.8 °F - 60.8 °F 54% 30.07 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
3:35 PM 77.0 °F - 62.6 °F 61% 30.07 in 10.0 mi Calm Calm - N/A   Clear
3:55 PM 80.6 °F 81.8 °F 62.6 °F 54% 30.07 in 10.0 mi NE 3.5 mph - N/A   Clear
4:15 PM 80.6 °F 80.8 °F 57.2 °F 45% 30.07 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:35 PM 80.6 °F 81.5 °F 60.8 °F 51% 30.07 in 10.0 mi ESE 3.5 mph - N/A   Overcast
4:55 PM 78.8 °F - 60.8 °F 54% 30.07 in 10.0 mi East 3.5 mph - N/A   Mostly Cloudy
5:15 PM 78.8 °F - 59.0 °F 51% 30.07 in 10.0 mi SE 3.5 mph - N/A   Partly Cloudy
5:55 PM 78.8 °F - 62.6 °F 57% 30.07 in 10.0 mi SE 4.6 mph - N/A   Clear
6:15 PM 77.0 °F - 60.8 °F 57% 30.07 in 10.0 mi Calm Calm - N/A   Clear
6:35 PM 77.0 °F - 60.8 °F 57% 30.07 in 10.0 mi ENE 3.5 mph - N/A   Clear
6:55 PM 77.0 °F - 60.8 °F 57% 30.07 in 10.0 mi Calm Calm - N/A   Clear
7:15 PM 75.2 °F - 60.8 °F 61% 30.07 in 10.0 mi East 3.5 mph - N/A   Clear
7:35 PM 75.2 °F - 62.6 °F 65% 30.08 in 10.0 mi ESE 3.5 mph - N/A   Clear
7:55 PM 73.4 °F - 60.8 °F 65% 30.07 in 10.0 mi Calm Calm - N/A   Clear
8:15 PM 73.4 °F - 62.6 °F 69% 30.08 in 10.0 mi SSE 6.9 mph - N/A   Clear
8:35 PM 71.6 °F - 62.6 °F 73% 30.09 in 10.0 mi SSE 6.9 mph - N/A   Clear
8:55 PM 71.6 °F - 62.6 °F 73% 30.11 in 10.0 mi SSE 6.9 mph - N/A   Clear
9:15 PM 69.8 °F - 62.6 °F 78% 30.11 in 10.0 mi SE 4.6 mph - N/A   Clear
9:35 PM 68.0 °F - 62.6 °F 83% 30.12 in 10.0 mi SE 4.6 mph - N/A   Clear
9:55 PM 68.0 °F - 62.6 °F 83% 30.13 in 10.0 mi Calm Calm - N/A   Clear
10:15 PM 66.2 °F - 62.6 °F 88% 30.14 in 10.0 mi Calm Calm - N/A   Clear
10:35 PM 64.4 °F - 62.6 °F 94% 30.13 in 10.0 mi Calm Calm - N/A   Clear
10:55 PM 64.4 °F - 62.6 °F 94% 30.13 in 10.0 mi Calm Calm - N/A   Clear
11:15 PM 64.4 °F - 62.6 °F 94% 30.13 in 10.0 mi Calm Calm - N/A   Clear
11:35 PM 64.4 °F - 62.6 °F 94% 30.14 in 10.0 mi Calm Calm - N/A   Clear
11:55 PM 64.4 °F - 62.6 °F 94% 30.14 in 8.0 mi Calm Calm - N/A   Clear
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