Weather History for Gaithersburg, MD

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Wednesday, January 2, 2013

  Actual Average (KCGS) Record (KCGS)
Temperature  
Mean Temperature 30 °F -  
Max Temperature 35 °F 42 °F 64 °F (1979)
Min Temperature 24 °F 27 °F 0 °F (1968)
Degree Days  
Heating Degree Days 36    
Moisture  
Dew Point 16 °F    
Average Humidity 56    
Maximum Humidity 75    
Minimum Humidity 41    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.13 in    
Wind  
Wind Speed 4 mph (NNW)    
Max Wind Speed 16 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

Jan. 02, 2013 Rise Set
Actual Time 7:28 AM EST 4:57 PM EST
Civil Twilight 6:58 AM EST 5:27 PM EST
Nautical Twilight 6:24 AM EST 6:01 PM EST
Astronomical Twilight 5:52 AM EST 6:33 PM EST
Moon 10:25 PM EST (1/2) 10:11 AM EST (1/2)
Length of Visible Light 10h 29m
Length of Day
9h 29m
Waning Gibbous, 75% of the Moon is Illuminated
Jan 2
Waning Gibbous
Jan 4
Last Quarter
Jan 11
New
Jan 18
First Quarter
Jan 26
Full

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:15 AM 35.6 °F 30.7 °F 26.6 °F 70% 30.03 in 10.0 mi NNW 5.8 mph - N/A   Mostly Cloudy
12:35 AM 33.8 °F - 26.6 °F 75% 30.02 in 10.0 mi Calm Calm - N/A   Scattered Clouds
12:55 AM 33.8 °F 30.8 °F 24.8 °F 70% 30.02 in 10.0 mi NNE 3.5 mph - N/A   Mostly Cloudy
1:15 AM 33.8 °F 30.8 °F 23.0 °F 65% 30.03 in 10.0 mi North 3.5 mph - N/A   Mostly Cloudy
1:35 AM 33.8 °F 29.6 °F 23.0 °F 65% 30.03 in 10.0 mi NNE 4.6 mph - N/A   Mostly Cloudy
1:55 AM 33.8 °F - 23.0 °F 65% 30.03 in 10.0 mi Calm Calm - N/A   Overcast
2:15 AM 33.8 °F 30.8 °F 23.0 °F 65% 30.03 in 10.0 mi NE 3.5 mph - N/A   Overcast
2:35 AM 33.8 °F 30.8 °F 23.0 °F 65% 30.03 in 10.0 mi NNE 3.5 mph - N/A   Overcast
2:55 AM 33.8 °F 30.8 °F 21.2 °F 60% 30.04 in 10.0 mi North 3.5 mph - N/A   Overcast
3:15 AM 32.0 °F 28.7 °F 21.2 °F 64% 30.04 in 10.0 mi North 3.5 mph - N/A   Overcast
3:35 AM 32.0 °F - 21.2 °F 64% 30.04 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
4:15 AM 32.0 °F - 21.2 °F 64% 30.04 in 10.0 mi Calm Calm - N/A   Partly Cloudy
4:35 AM 32.0 °F - 19.4 °F 60% 30.04 in 10.0 mi Calm Calm - N/A   Partly Cloudy
4:55 AM 32.0 °F 28.7 °F 19.4 °F 60% 30.04 in 10.0 mi NNE 3.5 mph - N/A   Mostly Cloudy
5:15 AM 30.2 °F 25.4 °F 21.2 °F 69% 30.04 in 10.0 mi NE 4.6 mph - N/A   Mostly Cloudy
5:35 AM 30.2 °F 25.4 °F 19.4 °F 64% 30.05 in 10.0 mi NNE 4.6 mph - N/A   Scattered Clouds
5:55 AM 30.2 °F 26.7 °F 19.4 °F 64% 30.05 in 10.0 mi NNE 3.5 mph - N/A   Scattered Clouds
6:15 AM 30.2 °F - 19.4 °F 64% 30.06 in 10.0 mi Calm Calm - N/A   Partly Cloudy
6:35 AM 30.2 °F 26.7 °F 19.4 °F 64% 30.07 in 10.0 mi North 3.5 mph - N/A   Clear
6:55 AM 28.4 °F 23.3 °F 17.6 °F 64% 30.08 in 10.0 mi NNW 4.6 mph - N/A   Clear
7:15 AM 28.4 °F - 19.4 °F 69% 30.08 in 10.0 mi Calm Calm - N/A   Clear
7:35 AM 28.4 °F 24.6 °F 19.4 °F 69% 30.10 in 10.0 mi NNW 3.5 mph - N/A   Clear
7:55 AM 28.4 °F 23.3 °F 17.6 °F 64% 30.11 in 10.0 mi NNW 4.6 mph - N/A   Clear
8:15 AM 28.4 °F 23.3 °F 17.6 °F 64% 30.12 in 10.0 mi NNW 4.6 mph - N/A   Clear
8:35 AM 28.4 °F - 17.6 °F 64% 30.12 in 10.0 mi Calm Calm - N/A   Clear
8:55 AM 30.2 °F 23.4 °F 19.4 °F 64% 30.12 in 10.0 mi North 6.9 mph - N/A   Clear
9:15 AM 30.2 °F 21.9 °F 17.6 °F 60% 30.13 in 10.0 mi NNW 9.2 mph 17.3 mph N/A   Clear
9:35 AM 30.2 °F 21.9 °F 17.6 °F 60% 30.14 in 10.0 mi NNW 9.2 mph - N/A   Clear
9:55 AM 32.0 °F 25.6 °F 17.6 °F 55% 30.15 in 10.0 mi North 6.9 mph - N/A   Clear
10:15 AM 32.0 °F 24.2 °F 15.8 °F 51% 30.16 in 10.0 mi NNW 9.2 mph 17.3 mph N/A   Clear
10:35 AM 32.0 °F 24.2 °F 15.8 °F 51% 30.15 in 10.0 mi North 9.2 mph - N/A   Clear
10:55 AM 33.8 °F 25.3 °F 15.8 °F 48% 30.15 in 10.0 mi NNW 11.5 mph - N/A   Clear
11:15 AM 33.8 °F 27.0 °F 15.8 °F 48% 30.15 in 10.0 mi North 8.1 mph 16.1 mph N/A   Clear
11:35 AM 33.8 °F 25.3 °F 14.0 °F 44% 30.14 in 10.0 mi NNW 11.5 mph 16.1 mph N/A   Clear
11:55 AM 33.8 °F 25.8 °F 15.8 °F 48% 30.12 in 10.0 mi NNW 10.4 mph - N/A   Clear
12:15 PM 33.8 °F 26.4 °F 15.8 °F 48% 30.12 in 10.0 mi North 9.2 mph 18.4 mph N/A   Clear
12:35 PM 33.8 °F 25.8 °F 15.8 °F 48% 30.11 in 10.0 mi NNW 10.4 mph 18.4 mph N/A   Clear
12:55 PM 33.8 °F 23.5 °F 12.2 °F 41% 30.12 in 10.0 mi NNW 16.1 mph 21.9 mph N/A   Clear
1:15 PM 32.0 °F 21.6 °F 12.2 °F 44% 30.10 in 10.0 mi NNW 15.0 mph 20.7 mph N/A   Clear
1:35 PM 33.8 °F 24.8 °F 14.0 °F 44% 30.12 in 10.0 mi NW 12.7 mph 18.4 mph N/A   Clear
1:55 PM 33.8 °F 27.0 °F 15.8 °F 48% 30.11 in 10.0 mi North 8.1 mph - N/A   Clear
2:15 PM 33.8 °F 24.3 °F 12.2 °F 41% 30.12 in 10.0 mi NW 13.8 mph 18.4 mph N/A   Clear
2:35 PM 33.8 °F 26.4 °F 14.0 °F 44% 30.12 in 10.0 mi NNW 9.2 mph - N/A   Clear
2:55 PM 32.0 °F 24.2 °F 12.2 °F 44% 30.13 in 10.0 mi NW 9.2 mph - N/A   Clear
3:15 PM 33.8 °F 25.8 °F 12.2 °F 41% 30.14 in 10.0 mi NW 10.4 mph - N/A   Clear
3:35 PM 33.8 °F 27.7 °F 12.2 °F 41% 30.14 in 10.0 mi NNW 6.9 mph - N/A   Clear
3:55 PM 33.8 °F 25.8 °F 12.2 °F 41% 30.14 in 10.0 mi NW 10.4 mph - N/A   Clear
4:15 PM 30.2 °F 24.3 °F 12.2 °F 47% 30.15 in 10.0 mi NNW 5.8 mph - N/A   Clear
4:35 PM 30.2 °F 22.6 °F 14.0 °F 51% 30.17 in 10.0 mi NW 8.1 mph - N/A   Clear
4:55 PM 30.2 °F - 12.2 °F 47% 30.17 in 10.0 mi Calm Calm - N/A   Clear
5:15 PM 30.2 °F - 12.2 °F 47% 30.17 in 10.0 mi Calm Calm - N/A   Clear
5:35 PM 28.4 °F 23.3 °F 12.2 °F 51% 30.18 in 10.0 mi NW 4.6 mph - N/A   Clear
6:15 PM 28.4 °F - 12.2 °F 51% 30.20 in 10.0 mi Calm Calm - N/A   Clear
6:35 PM 28.4 °F - 10.4 °F 47% 30.19 in 10.0 mi Calm Calm - N/A   Clear
6:55 PM 28.4 °F - 10.4 °F 47% 30.19 in 10.0 mi Calm Calm - N/A   Clear
7:15 PM 26.6 °F - 14.0 °F 59% 30.20 in 10.0 mi Calm Calm - N/A   Clear
7:55 PM 26.6 °F - 12.2 °F 55% 30.21 in 10.0 mi Calm Calm - N/A   Clear
8:15 PM 26.6 °F - 14.0 °F 59% 30.20 in 10.0 mi Calm Calm - N/A   Clear
8:35 PM 26.6 °F - 14.0 °F 59% 30.21 in 10.0 mi Calm Calm - N/A   Clear
8:55 PM 26.6 °F 22.6 °F 12.2 °F 55% 30.21 in 10.0 mi North 3.5 mph - N/A   Clear
9:15 PM 26.6 °F 22.6 °F 12.2 °F 55% 30.21 in 10.0 mi North 3.5 mph - N/A   Clear
9:35 PM 26.6 °F - 10.4 °F 51% 30.22 in 10.0 mi Calm Calm - N/A   Clear
9:55 PM 26.6 °F 21.2 °F 10.4 °F 51% 30.23 in 10.0 mi NW 4.6 mph - N/A   Clear
10:15 PM 24.8 °F 19.1 °F 10.4 °F 54% 30.25 in 10.0 mi NW 4.6 mph - N/A   Clear
10:35 PM 26.6 °F 22.6 °F 10.4 °F 51% 30.24 in 10.0 mi NNW 3.5 mph - N/A   Clear
10:55 PM 26.6 °F - 10.4 °F 51% 30.24 in 10.0 mi Calm Calm - N/A   Clear
11:15 PM 24.8 °F - 10.4 °F 54% 30.24 in 10.0 mi Calm Calm - N/A   Clear
11:35 PM 24.8 °F 19.1 °F 10.4 °F 54% 30.23 in 10.0 mi NNW 4.6 mph - N/A   Clear
11:55 PM 24.8 °F - 12.2 °F 59% 30.23 in 10.0 mi Calm Calm - N/A   Clear