Weather History for Gaithersburg, MD

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Thursday, August 28, 2014

  Actual Average (KCGS) Record (KCGS)
Temperature  
Mean Temperature 68 °F -  
Max Temperature 78 °F 88 °F 100 °F (1948)
Min Temperature 59 °F 65 °F 52 °F (1969)
Cooling Degree Days 4    
Growing Degree Days 18 (Base 50)    
Moisture  
Dew Point 60 °F    
Average Humidity 67    
Maximum Humidity 88    
Minimum Humidity 44    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.03 in    
Wind  
Wind Speed 3 mph (NW)    
Max Wind Speed 14 mph    
Max Gust Speed 22 mph    
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

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Date:

Astronomy

Aug. 28, 2014 Rise Set
Actual Time 6:33 AM EDT 7:45 PM EDT
Civil Twilight 6:05 AM EDT 8:12 PM EDT
Nautical Twilight 5:32 AM EDT 8:45 PM EDT
Astronomical Twilight 4:58 AM EDT 9:20 PM EDT
Moon 9:22 AM EDT (8/28) 9:09 PM EDT (8/28)
Length of Visible Light 14h 06m
Length of Day
13h 11m
Waxing Crescent, 8% of the Moon is Illuminated
Aug 28
Waxing Crescent
Sep 2
First Quarter
Sep 8
Full
Sep 15
Last Quarter
Sep 24
New

Hourly Weather History & Observations

Time (EDT) Temp. Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 73.4 °F 68.0 °F 83% 29.97 in 10.0 mi Calm Calm - N/A   Clear
12:35 AM 73.4 °F 68.0 °F 83% 29.96 in 10.0 mi Calm Calm - N/A   Clear
1:15 AM 71.6 °F 66.2 °F 83% 29.96 in 10.0 mi Calm Calm - N/A   Clear
1:35 AM 71.6 °F 68.0 °F 88% 29.96 in 10.0 mi Calm Calm - N/A   Clear
1:55 AM 71.6 °F 66.2 °F 83% 29.95 in 9.0 mi Calm Calm - N/A   Clear
2:15 AM 69.8 °F 66.2 °F 88% 29.95 in 10.0 mi NW 4.6 mph - N/A   Clear
2:35 AM 71.6 °F 68.0 °F 88% 29.95 in 10.0 mi Calm Calm - N/A   Clear
2:55 AM 71.6 °F 66.2 °F 83% 29.95 in 10.0 mi NW 3.5 mph - N/A   Clear
3:15 AM 71.6 °F 66.2 °F 83% 29.95 in 10.0 mi Calm Calm - N/A   Clear
3:35 AM 71.6 °F 66.2 °F 83% 29.95 in 10.0 mi Calm Calm - N/A   Clear
3:55 AM 71.6 °F 66.2 °F 83% 29.95 in 10.0 mi NNW 3.5 mph - N/A   Clear
4:15 AM 71.6 °F 66.2 °F 83% 29.95 in 10.0 mi NW 3.5 mph - N/A   Clear
4:35 AM 71.6 °F 66.2 °F 83% 29.96 in 10.0 mi NW 4.6 mph - N/A   Clear
4:55 AM 71.6 °F 66.2 °F 83% 29.96 in 10.0 mi Calm Calm - N/A   Clear
5:15 AM 71.6 °F 66.2 °F 83% 29.97 in 10.0 mi Calm Calm - N/A   Scattered Clouds
5:35 AM 71.6 °F 66.2 °F 83% 29.98 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
5:55 AM 69.8 °F 66.2 °F 88% 29.99 in 10.0 mi NNW 3.5 mph - N/A   Overcast
6:15 AM 69.8 °F 66.2 °F 88% 29.99 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
6:35 AM 69.8 °F 66.2 °F 88% 30.00 in 10.0 mi NW 3.5 mph - N/A   Scattered Clouds
6:55 AM 69.8 °F 66.2 °F 88% 30.01 in 10.0 mi Calm Calm - N/A   Scattered Clouds
7:15 AM 69.8 °F 64.4 °F 83% 30.01 in 10.0 mi Calm Calm - N/A   Overcast
7:35 AM 69.8 °F 64.4 °F 83% 30.02 in 10.0 mi NW 3.5 mph - N/A   Mostly Cloudy
7:55 AM 69.8 °F 64.4 °F 83% 30.02 in 10.0 mi NNW 3.5 mph - N/A   Mostly Cloudy
8:15 AM 69.8 °F 62.6 °F 78% 30.03 in 10.0 mi NW 4.6 mph - N/A   Scattered Clouds
8:35 AM 71.6 °F 62.6 °F 73% 30.04 in 10.0 mi NNW 3.5 mph - N/A   Mostly Cloudy
8:55 AM 71.6 °F 62.6 °F 73% 30.04 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:15 AM 71.6 °F 62.6 °F 73% 30.04 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
9:35 AM - - N/A% - - North - - N/A   Unknown
9:55 AM - - N/A% - - North - - N/A   Unknown
10:15 AM 75.2 °F 62.6 °F 65% 30.04 in 10.0 mi NW 9.2 mph - N/A   Scattered Clouds
10:35 AM 75.2 °F 60.8 °F 61% 30.04 in 10.0 mi NW 9.2 mph - N/A   Partly Cloudy
10:55 AM 75.2 °F 62.6 °F 65% 30.04 in 10.0 mi West 11.5 mph 17.3 mph N/A   Clear
11:15 AM 75.2 °F 62.6 °F 65% 30.04 in 10.0 mi NW 8.1 mph - N/A   Clear
11:35 AM 75.2 °F 60.8 °F 61% 30.04 in 10.0 mi WNW 10.4 mph - N/A   Clear
11:55 AM 75.2 °F 60.8 °F 61% 30.04 in 10.0 mi NW 9.2 mph 17.3 mph N/A   Clear
12:15 PM 77.0 °F 60.8 °F 57% 30.04 in 10.0 mi WNW 9.2 mph - N/A   Clear
12:35 PM 77.0 °F 59.0 °F 54% 30.03 in 10.0 mi NW 6.9 mph - N/A   Clear
12:55 PM 78.8 °F 62.6 °F 57% 30.03 in 10.0 mi WNW 11.5 mph 16.1 mph N/A   Partly Cloudy
1:15 PM 77.0 °F 59.0 °F 54% 30.03 in 10.0 mi WNW 12.7 mph 20.7 mph N/A   Clear
1:35 PM 77.0 °F 60.8 °F 57% 30.03 in 10.0 mi NW 11.5 mph 21.9 mph N/A   Clear
1:55 PM 78.8 °F 60.8 °F 54% 30.02 in 10.0 mi WNW 11.5 mph - N/A   Clear
2:15 PM 78.8 °F 59.0 °F 51% 30.03 in 10.0 mi NNW 6.9 mph - N/A   Partly Cloudy
2:35 PM 78.8 °F 59.0 °F 51% 30.02 in 10.0 mi WNW 13.8 mph 20.7 mph N/A   Partly Cloudy
2:55 PM 78.8 °F 59.0 °F 51% 30.02 in 10.0 mi WNW 9.2 mph - N/A   Partly Cloudy
3:15 PM 78.8 °F 59.0 °F 51% 30.01 in 10.0 mi NW 8.1 mph - N/A   Partly Cloudy
3:35 PM 78.8 °F 57.2 °F 47% 30.01 in 10.0 mi NNW 5.8 mph - N/A   Clear
3:55 PM 78.8 °F 57.2 °F 47% 30.01 in 10.0 mi NW 8.1 mph - N/A   Clear
4:15 PM 78.8 °F 57.2 °F 47% 30.01 in 10.0 mi NW 8.1 mph 16.1 mph N/A   Clear
4:35 PM 78.8 °F 57.2 °F 47% 30.02 in 10.0 mi WNW 10.4 mph 16.1 mph N/A   Clear
4:55 PM 78.8 °F 57.2 °F 47% 30.02 in 10.0 mi NW 8.1 mph - N/A   Clear
5:15 PM 78.8 °F 55.4 °F 44% 30.03 in 10.0 mi NNW 3.5 mph - N/A   Clear
5:35 PM 78.8 °F 55.4 °F 44% 30.03 in 10.0 mi Calm Calm - N/A   Clear
5:55 PM 78.8 °F 55.4 °F 44% 30.03 in 10.0 mi North 3.5 mph - N/A   Clear
6:15 PM 77.0 °F 55.4 °F 47% 30.03 in 10.0 mi NNW 4.6 mph - N/A   Clear
6:35 PM 75.2 °F 53.6 °F 47% 30.03 in 10.0 mi North 3.5 mph - N/A   Clear
6:55 PM 75.2 °F 53.6 °F 47% 30.04 in 10.0 mi Calm Calm - N/A   Clear
7:15 PM 73.4 °F 51.8 °F 47% 30.04 in 10.0 mi NNE 3.5 mph - N/A   Clear
7:35 PM 71.6 °F 51.8 °F 50% 30.06 in 10.0 mi Calm Calm - N/A   Clear
7:55 PM 69.8 °F 51.8 °F 53% 30.06 in 10.0 mi Calm Calm - N/A   Clear
8:15 PM 69.8 °F 51.8 °F 53% 30.07 in 10.0 mi Calm Calm - N/A   Clear
8:35 PM 69.8 °F 51.8 °F 53% 30.08 in 10.0 mi Calm Calm - N/A   Clear
8:55 PM 66.2 °F 51.8 °F 60% 30.09 in 10.0 mi Calm Calm - N/A   Clear
9:15 PM 62.6 °F 51.8 °F 68% 30.10 in 10.0 mi Calm Calm - N/A   Clear
9:35 PM 66.2 °F 51.8 °F 60% 30.11 in 10.0 mi Calm Calm - N/A   Clear
9:55 PM 64.4 °F 51.8 °F 64% 30.12 in 10.0 mi Calm Calm - N/A   Clear
10:15 PM 62.6 °F 51.8 °F 68% 30.13 in 10.0 mi Calm Calm - N/A   Clear
10:35 PM 60.8 °F 53.6 °F 77% 30.13 in 10.0 mi Calm Calm - N/A   Clear
10:55 PM 60.8 °F 53.6 °F 77% 30.13 in 10.0 mi Calm Calm - N/A   Clear
11:15 PM 59.0 °F 53.6 °F 82% 30.13 in 10.0 mi Calm Calm - N/A   Clear
11:35 PM 60.8 °F 51.8 °F 72% 30.14 in 10.0 mi Calm Calm - N/A   Clear
11:55 PM 60.8 °F 51.8 °F 72% 30.14 in 10.0 mi Calm Calm - N/A   Clear