Weather History for Gaithersburg, MD

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Tuesday, January 21, 2014

  Actual Average (KCGS) Record (KCGS)
Temperature  
Mean Temperature 24 °F -  
Max Temperature 35 °F 41 °F 65 °F (1959)
Min Temperature 10 °F 24 °F -5 °F (1985)
Degree Days  
Heating Degree Days 42    
Moisture  
Dew Point 17 °F    
Average Humidity 74    
Maximum Humidity 86    
Minimum Humidity 52    
Precipitation  
Precipitation 0.21 in - - ()
Sea Level Pressure  
Sea Level Pressure 29.86 in    
Wind  
Wind Speed 5 mph (NNE)    
Max Wind Speed 13 mph    
Max Gust Speed 22 mph    
Visibility 5 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. 21, 2014 Rise Set
Actual Time 7:23 AM EST 5:16 PM EST
Civil Twilight 6:54 AM EST 5:45 PM EST
Nautical Twilight 6:22 AM EST 6:18 PM EST
Astronomical Twilight 5:50 AM EST 6:50 PM EST
Moon 10:45 PM EST (1/21) 9:54 AM EST (1/21)
Length of Visible Light 10h 51m
Length of Day
9h 53m
Waning Gibbous, 75% of the Moon is Illuminated
Jan 21
Waning Gibbous
Jan 24
Last Quarter
Jan 30
New
Feb 6
First Quarter
Feb 14
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 31.7 °F 24.8 °F 65% 29.89 in 10.0 mi East 4.6 mph - N/A   Clear
12:35 AM 35.6 °F 32.8 °F 24.8 °F 65% 29.89 in 10.0 mi NE 3.5 mph - N/A   Clear
12:55 AM 33.8 °F 30.8 °F 24.8 °F 70% 29.88 in 10.0 mi NNE 3.5 mph - N/A   Clear
1:15 AM 33.8 °F 30.8 °F 24.8 °F 70% 29.88 in 10.0 mi North 3.5 mph - N/A   Clear
1:35 AM 35.6 °F - 24.8 °F 65% 29.88 in 10.0 mi Calm Calm - N/A   Clear
1:55 AM 33.8 °F 30.8 °F 24.8 °F 70% 29.89 in 10.0 mi NE 3.5 mph - N/A   Clear
2:15 AM 33.8 °F 30.8 °F 24.8 °F 70% 29.88 in 10.0 mi NE 3.5 mph - N/A   Clear
2:35 AM 33.8 °F 30.8 °F 24.8 °F 70% 29.88 in 10.0 mi NNE 3.5 mph - N/A   Clear
2:55 AM 33.8 °F 29.6 °F 24.8 °F 70% 29.89 in 10.0 mi East 4.6 mph - N/A   Partly Cloudy
3:15 AM 33.8 °F 30.8 °F 24.8 °F 70% 29.88 in 10.0 mi East 3.5 mph - N/A   Partly Cloudy
3:35 AM 33.8 °F 30.8 °F 24.8 °F 70% 29.89 in 10.0 mi East 3.5 mph - N/A   Partly Cloudy
3:55 AM 33.8 °F - 24.8 °F 70% 29.88 in 10.0 mi Calm Calm - N/A   Partly Cloudy
4:15 AM 33.8 °F - 23.0 °F 65% 29.88 in 10.0 mi Calm Calm - N/A   Partly Cloudy
4:35 AM 33.8 °F - 24.8 °F 70% 29.87 in 10.0 mi Calm Calm - N/A   Clear
4:55 AM 32.0 °F 28.7 °F 24.8 °F 75% 29.87 in 10.0 mi ENE 3.5 mph - N/A   Clear
5:15 AM 33.8 °F 30.8 °F 23.0 °F 65% 29.87 in 10.0 mi NE 3.5 mph - N/A   Clear
5:35 AM 32.0 °F - 21.2 °F 64% 29.86 in 10.0 mi Calm Calm - N/A   Clear
5:55 AM 32.0 °F 26.4 °F 21.2 °F 64% 29.86 in 10.0 mi NE 5.8 mph - N/A   Scattered Clouds
6:15 AM 32.0 °F 28.7 °F 21.2 °F 64% 29.86 in 10.0 mi East 3.5 mph - N/A   Mostly Cloudy
6:35 AM 32.0 °F 26.4 °F 21.2 °F 64% 29.86 in 10.0 mi East 5.8 mph - N/A   Overcast
6:55 AM 32.0 °F 26.4 °F 21.2 °F 64% 29.85 in 10.0 mi East 5.8 mph - N/A   Overcast
7:15 AM 32.0 °F 27.5 °F 19.4 °F 60% 29.84 in 10.0 mi ENE 4.6 mph - N/A   Overcast
7:35 AM 32.0 °F - 19.4 °F 60% 29.85 in 10.0 mi Calm Calm - N/A   Overcast
7:55 AM 32.0 °F 27.5 °F 19.4 °F 60% 29.85 in 10.0 mi East 4.6 mph - N/A   Overcast
8:15 AM 32.0 °F 26.4 °F 21.2 °F 64% 29.86 in 10.0 mi ENE 5.8 mph - N/A   Overcast
8:35 AM 32.0 °F 26.4 °F 21.2 °F 64% 29.87 in 10.0 mi NE 5.8 mph - N/A   Overcast
8:55 AM 30.2 °F 24.3 °F 21.2 °F 69% 29.87 in 10.0 mi NE 5.8 mph - N/A   Overcast
9:15 AM 30.2 °F 26.7 °F 24.8 °F 80% 29.87 in 1.2 mi ENE 3.5 mph - N/A   Overcast
9:35 AM 28.4 °F 22.2 °F 24.8 °F 86% 29.88 in 0.5 mi NE 5.8 mph - N/A   Overcast
9:55 AM 28.4 °F 21.2 °F 24.8 °F 86% 29.88 in 0.8 mi NE 6.9 mph - N/A   Overcast
10:15 AM 28.4 °F 19.1 °F 24.8 °F 86% 29.88 in 0.5 mi NNE 10.4 mph - N/A   Overcast
10:35 AM 26.6 °F 17.5 °F 23.0 °F 86% 29.88 in 0.5 mi NNE 9.2 mph 18.4 mph N/A   Overcast
10:55 AM 26.6 °F 21.2 °F 23.0 °F 86% 29.87 in 0.2 mi NNE 4.6 mph - 0.02 in   Overcast
11:15 AM 26.6 °F 16.8 °F 21.2 °F 80% 29.85 in 0.5 mi NNE 10.4 mph - 0.01 in   Overcast
11:35 AM 24.8 °F 13.4 °F 21.2 °F 86% 29.85 in 0.5 mi NNE 12.7 mph 20.7 mph 0.01 in   Overcast
11:55 AM 24.8 °F 15.3 °F 19.4 °F 80% 29.83 in 0.5 mi NNE 9.2 mph - 0.01 in   Overcast
12:15 PM 24.8 °F 15.3 °F 19.4 °F 80% 29.81 in 0.5 mi NNE 9.2 mph - N/A   Overcast
12:35 PM 24.8 °F 14.6 °F 19.4 °F 80% 29.80 in 0.8 mi NNE 10.4 mph 19.6 mph N/A   Overcast
12:55 PM 24.8 °F 16.1 °F 19.4 °F 80% 29.79 in 0.5 mi NNE 8.1 mph 18.4 mph N/A   Overcast
1:15 PM 23.0 °F 13.1 °F 17.6 °F 80% 29.78 in 0.5 mi North 9.2 mph 21.9 mph N/A   Overcast
1:35 PM 23.0 °F 12.4 °F 17.6 °F 80% 29.77 in 0.5 mi NNE 10.4 mph 20.7 mph 0.01 in   Overcast
1:55 PM 21.2 °F 11.7 °F 17.6 °F 86% 29.76 in 0.5 mi NNE 8.1 mph 17.3 mph 0.02 in   Overcast
2:15 PM 21.2 °F 10.1 °F 17.6 °F 86% 29.76 in 0.5 mi North 10.4 mph 20.7 mph 0.02 in   Overcast
2:35 PM 21.2 °F 11.7 °F 17.6 °F 86% 29.76 in 0.2 mi NNE 8.1 mph 20.7 mph 0.03 in   Overcast
2:55 PM 21.2 °F 14.9 °F 17.6 °F 86% 29.77 in 0.5 mi NNE 4.6 mph - 0.04 in   Overcast
3:15 PM 21.2 °F 9.5 °F 17.6 °F 86% 29.78 in 0.5 mi NNE 11.5 mph 21.9 mph N/A   Overcast
3:35 PM 21.2 °F 11.7 °F 15.8 °F 80% 29.78 in 0.5 mi North 8.1 mph 16.1 mph 0.01 in   Overcast
3:55 PM 19.4 °F 10.4 °F 15.8 °F 86% 29.80 in 0.5 mi North 6.9 mph - 0.01 in   Overcast
4:15 PM 19.4 °F 11.5 °F 15.8 °F 86% 29.81 in 0.5 mi NNE 5.8 mph - 0.01 in   Overcast
4:35 PM 19.4 °F 11.5 °F 15.8 °F 86% 29.82 in 0.8 mi North 5.8 mph - 0.02 in   Overcast
4:55 PM 19.4 °F 7.2 °F 15.8 °F 86% 29.82 in 0.5 mi North 11.5 mph 17.3 mph 0.02 in   Overcast
5:15 PM 19.4 °F 9.5 °F 15.8 °F 86% 29.83 in 0.5 mi NNE 8.1 mph - 0.01 in   Overcast
5:35 PM 19.4 °F 9.5 °F 14.0 °F 80% 29.84 in 1.5 mi North 8.1 mph - 0.01 in   Overcast
5:55 PM 17.6 °F 8.2 °F 12.2 °F 79% 29.85 in 1.0 mi North 6.9 mph - 0.02 in   Overcast
6:15 PM 17.6 °F 8.2 °F 12.2 °F 79% 29.86 in 0.8 mi North 6.9 mph 18.4 mph N/A   Overcast
6:35 PM 17.6 °F 9.3 °F 12.2 °F 79% 29.87 in 0.8 mi North 5.8 mph - 0.01 in   Overcast
6:55 PM 17.6 °F 10.7 °F 12.2 °F 79% 29.88 in 1.0 mi North 4.6 mph - 0.02 in   Overcast
7:15 PM 17.6 °F 8.2 °F 12.2 °F 79% 29.88 in 2.5 mi North 6.9 mph - 0.01 in   Overcast
7:35 PM 15.8 °F 7.2 °F 12.2 °F 86% 29.89 in 1.8 mi North 5.8 mph - 0.01 in   Overcast
7:55 PM 15.8 °F 8.6 °F 10.4 °F 79% 29.89 in 1.0 mi North 4.6 mph - 0.02 in   Overcast
8:15 PM 15.8 °F 6.1 °F 10.4 °F 79% 29.91 in 1.0 mi North 6.9 mph - N/A   Overcast
8:35 PM 15.8 °F 7.2 °F 10.4 °F 79% 29.91 in 1.2 mi North 5.8 mph - 0.01 in   Overcast
8:55 PM 15.8 °F 5.1 °F 8.6 °F 73% 29.91 in 1.5 mi North 8.1 mph - 0.01 in   Overcast
9:15 PM 14.0 °F 0.5 °F 8.6 °F 79% 29.90 in 1.8 mi North 11.5 mph 19.6 mph 0.01 in   Overcast
9:35 PM 14.0 °F 3.9 °F 8.6 °F 79% 29.90 in 3.0 mi North 6.9 mph - 0.01 in   Overcast
9:55 PM 12.2 °F 0.7 °F 5.0 °F 73% 29.89 in 8.0 mi North 8.1 mph - 0.01 in   Mostly Cloudy
10:15 PM 12.2 °F -0.2 °F 3.2 °F 67% 29.89 in 10.0 mi North 9.2 mph 21.9 mph N/A   Partly Cloudy
10:35 PM 12.2 °F 0.7 °F 3.2 °F 67% 29.90 in 10.0 mi North 8.1 mph - N/A   Mostly Cloudy
10:55 PM 12.2 °F 0.7 °F 1.4 °F 62% 29.90 in 10.0 mi North 8.1 mph 18.4 mph N/A   Mostly Cloudy
11:15 PM 12.2 °F 1.7 °F 1.4 °F 62% 29.90 in 10.0 mi NNW 6.9 mph - 0.01 in   Scattered Clouds
11:35 PM 12.2 °F 0.7 °F -0.4 °F 57% 29.90 in 10.0 mi North 8.1 mph - 0.01 in   Clear
11:55 PM 10.4 °F 0.8 °F -4.0 °F 52% 29.91 in 10.0 mi North 5.8 mph - 0.01 in   Clear