Weather History for Gaithersburg, MD

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Monday, October 29, 2012

  Actual Average (KCGS) Record (KCGS)
Temperature  
Mean Temperature 48 °F -  
Max Temperature 51 °F 66 °F 85 °F (1984)
Min Temperature 44 °F 41 °F 25 °F (1965)
Degree Days  
Heating Degree Days 18    
Moisture  
Dew Point 45 °F    
Average Humidity 90    
Maximum Humidity 94    
Minimum Humidity 87    
Precipitation  
Precipitation 2.56 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.18 in    
Wind  
Wind Speed 11 mph (NNW)    
Max Wind Speed 32 mph    
Max Gust Speed 54 mph    
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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Date:

Astronomy

Oct. 29, 2012 Rise Set
Actual Time 7:33 AM EDT 6:10 PM EDT
Civil Twilight 7:05 AM EDT 6:38 PM EDT
Nautical Twilight 6:34 AM EDT 7:09 PM EDT
Astronomical Twilight 6:03 AM EDT 7:40 PM EDT
Moon 6:01 PM EDT (10/29) 7:21 AM EDT (10/29)
Length of Visible Light 11h 32m
Length of Day
10h 37m
Full, 100% of the Moon is Illuminated
Oct 29
Full
Oct 29
Full
Nov 6
Last Quarter
Nov 13
New
Nov 20
First 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 51.8 °F - 48.2 °F 88% 29.62 in 10.0 mi NNE 4.6 mph - N/A   Overcast
12:35 AM 51.8 °F - 48.2 °F 88% 29.61 in 10.0 mi NNE 4.6 mph - N/A   Overcast
12:55 AM 51.8 °F - 48.2 °F 88% 29.61 in 10.0 mi NNE 3.5 mph - N/A   Overcast
1:15 AM 51.8 °F - 48.2 °F 88% 29.61 in 10.0 mi NNE 3.5 mph - N/A   Overcast
1:35 AM 51.8 °F - 48.2 °F 88% 29.60 in 10.0 mi NNE 5.8 mph - N/A   Overcast
1:55 AM 51.8 °F - 48.2 °F 88% 29.59 in 10.0 mi NNE 3.5 mph - N/A   Overcast
2:15 AM 51.8 °F - 48.2 °F 88% 29.58 in 7.0 mi NNE 3.5 mph - N/A   Overcast
2:35 AM 51.8 °F - 48.2 °F 88% 29.58 in 10.0 mi North 3.5 mph - N/A   Overcast
2:55 AM 51.8 °F - 48.2 °F 88% 29.57 in 10.0 mi NNW 5.8 mph - N/A   Overcast
3:15 AM 51.8 °F - 48.2 °F 88% 29.56 in 10.0 mi North 5.8 mph - N/A   Overcast
3:35 AM 51.8 °F - 48.2 °F 88% 29.56 in 10.0 mi North 5.8 mph - N/A   Overcast
3:55 AM 50.0 °F - 48.2 °F 94% 29.56 in 9.0 mi NNE 3.5 mph - N/A   Overcast
4:15 AM 50.0 °F - 48.2 °F 94% 29.56 in 10.0 mi North 4.6 mph - N/A   Overcast
4:35 AM 50.0 °F - 48.2 °F 94% 29.56 in 10.0 mi North 3.5 mph - N/A   Overcast
4:55 AM 50.0 °F - 48.2 °F 94% 29.56 in 10.0 mi North 8.1 mph - N/A   Overcast
5:15 AM 50.0 °F - 46.4 °F 87% 29.55 in 10.0 mi North 4.6 mph - N/A   Overcast
5:55 AM 48.2 °F - 46.4 °F 93% 29.53 in 10.0 mi North 4.6 mph - 0.02 in   Overcast
6:55 AM 48.2 °F - 46.4 °F 93% 29.50 in 9.0 mi NNE 3.5 mph 19.6 mph 0.08 in   Overcast
7:15 AM 48.2 °F - 46.4 °F 93% 29.49 in 9.0 mi North 4.6 mph - 0.04 in   Overcast
7:35 AM 48.2 °F - 46.4 °F 93% 29.49 in 10.0 mi NNW 8.1 mph - 0.05 in   Overcast
7:55 AM 48.2 °F - 46.4 °F 93% 29.50 in 8.0 mi NNE 5.8 mph - 0.08 in   Overcast
8:15 AM 48.2 °F - 46.4 °F 93% 29.50 in 9.0 mi North 6.9 mph - 0.03 in   Overcast
8:35 AM 48.2 °F - 46.4 °F 93% 29.49 in 7.0 mi North 8.1 mph - 0.08 in   Overcast
8:55 AM 48.2 °F - 46.4 °F 93% 29.48 in 7.0 mi North 8.1 mph - 0.14 in   Overcast
9:15 AM 48.2 °F - 46.4 °F 93% 29.47 in 6.0 mi North 8.1 mph 16.1 mph 0.07 in   Overcast
9:35 AM 48.2 °F - 46.4 °F 93% 29.44 in 7.0 mi NNW 11.5 mph 19.6 mph 0.13 in   Overcast
9:55 AM 48.2 °F - 46.4 °F 93% 29.43 in 8.0 mi North 11.5 mph 19.6 mph 0.17 in   Overcast
10:35 AM 48.2 °F - 46.4 °F 93% 29.39 in 9.0 mi North 12.7 mph 19.6 mph 0.09 in   Overcast
10:55 AM 48.2 °F - 46.4 °F 93% 29.37 in 9.0 mi NNW 11.5 mph 23.0 mph 0.13 in   Overcast
11:15 AM 48.2 °F - 46.4 °F 93% 29.35 in 6.0 mi NNW 13.8 mph 23.0 mph 0.09 in   Overcast
11:35 AM 48.2 °F - 46.4 °F 93% 29.32 in 6.0 mi NNW 18.4 mph 27.6 mph 0.18 in   Overcast
11:55 AM 48.2 °F - 46.4 °F 93% 29.31 in 7.0 mi NNW 15.0 mph 23.0 mph 0.26 in   Overcast
12:15 PM 48.2 °F - 46.4 °F 93% 29.28 in 7.0 mi NNW 16.1 mph 28.8 mph 0.04 in   Overcast
12:35 PM 48.2 °F - 46.4 °F 93% 29.26 in 8.0 mi NNW 15.0 mph 27.6 mph 0.06 in   Overcast
12:55 PM 48.2 °F - 46.4 °F 93% 29.24 in 9.0 mi NNW 13.8 mph 24.2 mph 0.09 in   Overcast
1:35 PM 48.2 °F - 46.4 °F 93% 29.18 in 5.0 mi NNW 17.3 mph 34.5 mph 0.08 in   Overcast
1:55 PM 48.2 °F - 46.4 °F 93% 29.14 in 5.0 mi NNW 20.7 mph 31.1 mph 0.15 in   Overcast
2:15 PM 48.2 °F - 44.6 °F 87% 29.12 in 5.0 mi NW 20.7 mph 42.6 mph 0.09 in   Overcast
2:35 PM 48.2 °F - 44.6 °F 87% 29.09 in 5.0 mi NW 25.3 mph 36.8 mph 0.16 in   Overcast
2:55 PM 48.2 °F - 44.6 °F 87% 29.07 in 5.0 mi NW 27.6 mph 41.4 mph 0.20 in   Overcast
3:15 PM 48.2 °F - 44.6 °F 87% 29.05 in 5.0 mi NW 27.6 mph 40.3 mph 0.03 in   Overcast
3:35 PM 48.2 °F - 44.6 °F 87% 29.03 in 5.0 mi NW 21.9 mph 38.0 mph 0.08 in   Overcast
4:35 PM 48.2 °F - 44.6 °F 87% 28.94 in 5.0 mi NNW 26.5 mph 39.1 mph 0.08 in   Overcast
4:55 PM 48.2 °F - 44.6 °F 87% 28.92 in 5.0 mi NW 25.3 mph 36.8 mph 0.13 in   Overcast
5:15 PM 46.4 °F 37.5 °F 44.6 °F 93% 28.89 in 5.0 mi NW 27.6 mph 36.8 mph 0.03 in   Overcast
5:35 PM 46.4 °F 37.9 °F 44.6 °F 93% 28.87 in 5.0 mi NW 25.3 mph 39.1 mph 0.09 in   Overcast
5:55 PM 46.4 °F 37.9 °F 44.6 °F 93% 28.84 in 4.0 mi NW 25.3 mph 46.0 mph 0.14 in   Overcast
6:15 PM 46.4 °F 37.9 °F 44.6 °F 93% 28.82 in 7.0 mi NW 25.3 mph 44.9 mph 0.05 in   Overcast
6:35 PM 46.4 °F 38.1 °F 44.6 °F 93% 28.81 in 6.0 mi NNW 24.2 mph 46.0 mph 0.08 in   Overcast
6:55 PM 46.4 °F 38.1 °F 44.6 °F 93% 28.79 in 7.0 mi NW 24.2 mph 36.8 mph 0.12 in   Overcast
7:15 PM 46.4 °F 37.9 °F 44.6 °F 93% 28.77 in 7.0 mi NNW 25.3 mph 47.2 mph 0.07 in   Overcast
7:35 PM 46.4 °F 37.7 °F 42.8 °F 87% 28.75 in 7.0 mi NNW 26.5 mph 41.4 mph 0.12 in   Mostly Cloudy
7:55 PM 46.4 °F 37.4 °F 42.8 °F 87% 28.73 in 7.0 mi NNW 28.8 mph 43.7 mph 0.16 in   Overcast
8:15 PM 46.4 °F 37.7 °F 42.8 °F 87% 28.72 in 5.0 mi NNW 26.5 mph 44.9 mph 0.05 in   Mostly Cloudy
8:35 PM 46.4 °F 36.9 °F 42.8 °F 87% 28.71 in 5.0 mi NW 32.2 mph 42.6 mph 0.13 in   Overcast
8:55 PM 46.4 °F 37.7 °F 42.8 °F 87% 28.70 in 6.0 mi NW 26.5 mph 38.0 mph 0.22 in   Overcast
9:15 PM 46.4 °F 37.7 °F 42.8 °F 87% 28.70 in 7.0 mi NW 26.5 mph 41.4 mph 0.08 in   Overcast
9:35 PM 44.6 °F 35.1 °F 42.8 °F 93% 28.70 in 7.0 mi WNW 27.6 mph 39.1 mph 0.16 in   Overcast
9:55 PM 44.6 °F 36.1 °F 41.0 °F 87% 28.70 in 7.0 mi NW 21.9 mph 38.0 mph 0.23 in   Overcast
10:15 PM 44.6 °F 34.9 °F 41.0 °F 87% 28.67 in 5.0 mi NW 28.8 mph 47.2 mph 0.06 in   Overcast
10:35 PM 44.6 °F 35.5 °F 41.0 °F 87% 28.64 in 3.0 mi NW 25.3 mph 43.7 mph 0.07 in   Overcast
10:55 PM 44.6 °F 34.6 °F 41.0 °F 87% 28.63 in 3.0 mi NW 31.1 mph 47.2 mph 0.10 in   Overcast
11:15 PM 44.6 °F 34.6 °F 41.0 °F 87% 28.63 in 3.0 mi NW 31.1 mph 54.1 mph 0.02 in   Overcast
11:35 PM 44.6 °F 35.5 °F 41.0 °F 87% 28.63 in 5.0 mi NW 25.3 mph 43.7 mph 0.04 in   Overcast
11:55 PM 44.6 °F 34.9 °F 41.0 °F 87% 28.64 in 5.0 mi NW 28.8 mph 44.9 mph 0.06 in   Overcast