Weather History for Gaithersburg, MD

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Monday, May 6, 2013

  Actual Average (KCGS) Record (KCGS)
Temperature  
Mean Temperature 53 °F -  
Max Temperature 60 °F 73 °F 92 °F (1949)
Min Temperature 46 °F 48 °F 39 °F (1979)
Degree Days  
Heating Degree Days 12    
Growing Degree Days 3 (Base 50)    
Moisture  
Dew Point 49 °F    
Average Humidity 83    
Maximum Humidity 94    
Minimum Humidity 76    
Precipitation  
Precipitation 0.01 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.16 in    
Wind  
Wind Speed 4 mph (East)    
Max Wind Speed 9 mph    
Max Gust Speed 21 mph    
Visibility 9 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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Astronomy

May. 06, 2013 Rise Set
Actual Time 6:04 AM EDT 8:06 PM EDT
Civil Twilight 5:34 AM EDT 8:36 PM EDT
Nautical Twilight 4:59 AM EDT 9:12 PM EDT
Astronomical Twilight 4:20 AM EDT 9:51 PM EDT
Moon 4:03 AM EDT (5/6) 5:05 PM EDT (5/6)
Length of Visible Light 15h 01m
Length of Day
14h 02m
Waning Crescent, 11% of the Moon is Illuminated
May 6
Waning Crescent
May 9
New
May 18
First Quarter
May 25
Full
May 31
Last Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 48.2 °F - 42.8 °F 82% 30.21 in 10.0 mi East 3.5 mph - N/A   Clear
12:35 AM 48.2 °F - 42.8 °F 82% 30.21 in 10.0 mi ESE 4.6 mph - N/A   Clear
12:55 AM 46.4 °F - 42.8 °F 87% 30.21 in 10.0 mi Calm Calm - N/A   Clear
1:15 AM 46.4 °F - 41.0 °F 81% 30.21 in 10.0 mi Calm Calm - N/A   Clear
1:35 AM 46.4 °F - 42.8 °F 87% 30.20 in 10.0 mi Calm Calm - N/A   Clear
1:55 AM 46.4 °F - 42.8 °F 87% 30.21 in 10.0 mi Calm Calm - N/A   Clear
2:35 AM 46.4 °F - 42.8 °F 87% 30.20 in 10.0 mi Calm Calm - N/A   Overcast
2:55 AM 46.4 °F - 42.8 °F 87% 30.19 in 10.0 mi Calm Calm - N/A   Overcast
3:15 AM 46.4 °F 45.2 °F 42.8 °F 87% 30.19 in 10.0 mi East 3.5 mph - N/A   Overcast
3:35 AM 48.2 °F - 42.8 °F 82% 30.19 in 10.0 mi Calm Calm - N/A   Overcast
3:55 AM 48.2 °F - 42.8 °F 82% 30.18 in 10.0 mi Calm Calm - N/A   Overcast
4:15 AM 48.2 °F - 42.8 °F 82% 30.17 in 10.0 mi ENE 3.5 mph - N/A   Overcast
4:35 AM 48.2 °F - 41.0 °F 76% 30.17 in 10.0 mi ENE 4.6 mph - N/A   Overcast
4:55 AM 48.2 °F - 41.0 °F 76% 30.18 in 10.0 mi ENE 4.6 mph - N/A   Overcast
5:15 AM 48.2 °F - 41.0 °F 76% 30.18 in 10.0 mi ENE 3.5 mph - N/A   Overcast
5:35 AM 48.2 °F - 41.0 °F 76% 30.18 in 10.0 mi East 3.5 mph - N/A   Overcast
5:55 AM 48.2 °F - 42.8 °F 82% 30.18 in 10.0 mi East 3.5 mph - N/A   Overcast
6:15 AM 48.2 °F - 41.0 °F 76% 30.18 in 10.0 mi ENE 4.6 mph - N/A   Overcast
6:35 AM 48.2 °F - 42.8 °F 82% 30.19 in 10.0 mi Calm Calm - N/A   Overcast
6:55 AM 48.2 °F - 42.8 °F 82% 30.20 in 10.0 mi East 3.5 mph - N/A   Overcast
7:15 AM 48.2 °F - 41.0 °F 76% 30.20 in 10.0 mi East 4.6 mph - N/A   Overcast
7:35 AM 48.2 °F - 42.8 °F 82% 30.20 in 10.0 mi ENE 4.6 mph - N/A   Overcast
7:55 AM 48.2 °F - 42.8 °F 82% 30.19 in 10.0 mi NE 3.5 mph - N/A   Overcast
8:15 AM 48.2 °F - 42.8 °F 82% 30.20 in 10.0 mi East 4.6 mph - N/A   Overcast
8:35 AM 50.0 °F - 42.8 °F 76% 30.19 in 10.0 mi ENE 5.8 mph - N/A   Overcast
8:55 AM 50.0 °F - 44.6 °F 82% 30.19 in 10.0 mi East 5.8 mph - N/A   Overcast
9:15 AM 51.8 °F - 44.6 °F 76% 30.19 in 10.0 mi East 6.9 mph - N/A   Overcast
9:35 AM 53.6 °F - 46.4 °F 77% 30.19 in 10.0 mi East 4.6 mph - N/A   Overcast
9:55 AM 53.6 °F - 46.4 °F 77% 30.19 in 10.0 mi ESE 5.8 mph - N/A   Overcast
10:15 AM 53.6 °F - 48.2 °F 82% 30.19 in 10.0 mi East 8.1 mph - N/A   Overcast
10:35 AM 53.6 °F - 48.2 °F 82% 30.19 in 10.0 mi ENE 4.6 mph - N/A   Overcast
10:55 AM 53.6 °F - 48.2 °F 82% 30.19 in 10.0 mi East 3.5 mph - N/A   Overcast
11:15 AM 53.6 °F - 48.2 °F 82% 30.19 in 8.0 mi ESE 8.1 mph - N/A   Overcast
11:35 AM 53.6 °F - 48.2 °F 82% 30.19 in 10.0 mi East 4.6 mph - N/A   Overcast
11:55 AM 55.4 °F - 50.0 °F 82% 30.19 in 10.0 mi East 6.9 mph - N/A   Overcast
12:15 PM 53.6 °F - 50.0 °F 88% 30.19 in 9.0 mi East 4.6 mph - N/A   Overcast
12:35 PM 55.4 °F - 50.0 °F 82% 30.18 in 10.0 mi East 5.8 mph - N/A   Overcast
12:55 PM 55.4 °F - 51.8 °F 88% 30.17 in 8.0 mi East 4.6 mph - N/A   Overcast
1:15 PM 57.2 °F - 51.8 °F 82% 30.16 in 8.0 mi East 5.8 mph - N/A   Overcast
1:35 PM 57.2 °F - 51.8 °F 82% 30.15 in 9.0 mi ESE 6.9 mph - N/A   Overcast
1:55 PM 57.2 °F - 51.8 °F 82% 30.15 in 10.0 mi ESE 9.2 mph - N/A   Overcast
2:15 PM 59.0 °F - 51.8 °F 77% 30.15 in 10.0 mi East 4.6 mph - N/A   Overcast
2:35 PM 59.0 °F - 53.6 °F 82% 30.14 in 10.0 mi ESE 8.1 mph - N/A   Overcast
2:55 PM 57.2 °F - 53.6 °F 88% 30.14 in 7.0 mi ESE 8.1 mph - N/A   Overcast
3:15 PM 59.0 °F - 53.6 °F 82% 30.13 in 10.0 mi East 4.6 mph - N/A   Overcast
3:35 PM 59.0 °F - 53.6 °F 82% 30.12 in 10.0 mi ESE 6.9 mph - N/A   Overcast
3:55 PM 60.8 °F - 53.6 °F 77% 30.11 in 10.0 mi East 5.8 mph - N/A   Overcast
4:15 PM 60.8 °F - 53.6 °F 77% 30.11 in 10.0 mi ESE 6.9 mph - N/A   Overcast
4:35 PM 60.8 °F - 53.6 °F 77% 30.11 in 10.0 mi East 6.9 mph 16.1 mph N/A   Overcast
4:55 PM 60.8 °F - 53.6 °F 77% 30.10 in 10.0 mi East 5.8 mph - N/A   Overcast
5:15 PM 60.8 °F - 55.4 °F 82% 30.10 in 10.0 mi East 5.8 mph 20.7 mph N/A   Overcast
5:35 PM 60.8 °F - 55.4 °F 82% 30.10 in 10.0 mi ESE 6.9 mph - N/A   Overcast
5:55 PM 60.8 °F - 55.4 °F 82% 30.10 in 10.0 mi ESE 8.1 mph - N/A   Overcast
6:15 PM 60.8 °F - 55.4 °F 82% 30.10 in 10.0 mi ESE 6.9 mph - N/A   Overcast
6:55 PM 60.8 °F - 55.4 °F 82% 30.09 in 10.0 mi East 5.8 mph - N/A   Overcast
7:15 PM 60.8 °F - 55.4 °F 82% 30.09 in 10.0 mi ESE 5.8 mph - N/A   Overcast
7:35 PM 60.8 °F - 55.4 °F 82% 30.10 in 10.0 mi ESE 6.9 mph - N/A   Overcast
7:55 PM 59.0 °F - 55.4 °F 88% 30.10 in 5.0 mi ESE 8.1 mph - 0.01 in   Overcast
8:15 PM 59.0 °F - 55.4 °F 88% 30.11 in 10.0 mi ESE 9.2 mph - N/A   Overcast
8:35 PM 59.0 °F - 55.4 °F 88% 30.11 in 10.0 mi ESE 6.9 mph - N/A   Overcast
8:55 PM 57.2 °F - 55.4 °F 94% 30.11 in 10.0 mi East 5.8 mph - N/A   Overcast
9:15 PM 57.2 °F - 55.4 °F 94% 30.12 in 8.0 mi ESE 5.8 mph - N/A   Overcast
9:35 PM 57.2 °F - 55.4 °F 94% 30.12 in 10.0 mi ESE 6.9 mph - N/A   Overcast
9:55 PM 59.0 °F - 55.4 °F 88% 30.13 in 9.0 mi ESE 6.9 mph - N/A   Overcast
10:15 PM 57.2 °F - 55.4 °F 94% 30.13 in 6.0 mi ESE 4.6 mph - N/A   Overcast
10:35 PM 57.2 °F - 55.4 °F 94% 30.12 in 6.0 mi ESE 8.1 mph - N/A   Overcast
10:55 PM 57.2 °F - 55.4 °F 94% 30.12 in 4.0 mi ESE 9.2 mph - N/A   Overcast
11:15 PM 57.2 °F - 55.4 °F 94% 30.12 in 4.0 mi ESE 4.6 mph - N/A   Overcast
11:35 PM 57.2 °F - 55.4 °F 94% 30.11 in 8.0 mi ESE 8.1 mph - N/A   Overcast
11:55 PM 57.2 °F - 55.4 °F 94% 30.11 in 5.0 mi ESE 4.6 mph - N/A   Overcast