Weather History for Gaithersburg, MD

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Saturday, February 23, 2013

  Actual Average (KCGS) Record (KCGS)
Temperature  
Mean Temperature 38 °F -  
Max Temperature 46 °F 51 °F 72 °F (1974)
Min Temperature 30 °F 33 °F 3 °F (1963)
Degree Days  
Heating Degree Days 27    
Moisture  
Dew Point 35 °F    
Average Humidity 93    
Maximum Humidity 100    
Minimum Humidity 87    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.00 in    
Wind  
Wind Speed 3 mph (NE)    
Max Wind Speed 7 mph    
Max Gust Speed -    
Visibility 3 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

Feb. 23, 2013 Rise Set
Actual Time 6:49 AM EST 5:54 PM EST
Civil Twilight 6:22 AM EST 6:22 PM EST
Nautical Twilight 5:51 AM EST 6:53 PM EST
Astronomical Twilight 5:20 AM EST 7:24 PM EST
Moon 4:03 PM EST (2/23) 5:10 AM EST (2/23)
Length of Visible Light 11h 59m
Length of Day
11h 05m
Waxing Gibbous, 95% of the Moon is Illuminated
Feb 23
Waxing Gibbous
Feb 25
Full
Mar 4
Last Quarter
Mar 11
New
Mar 19
First Quarter

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 30.2 °F 23.4 °F 28.4 °F 93% 30.22 in 7.0 mi SE 6.9 mph - N/A   Overcast
12:35 AM 30.2 °F 23.4 °F 28.4 °F 93% 30.22 in 5.0 mi ESE 6.9 mph - N/A   Overcast
12:55 AM 30.2 °F 24.3 °F 28.4 °F 93% 30.21 in 4.0 mi ESE 5.8 mph - N/A   Overcast
1:15 AM 30.2 °F 25.4 °F 28.4 °F 93% 30.19 in 2.5 mi ESE 4.6 mph - N/A   Overcast
1:35 AM 30.2 °F 25.4 °F 28.4 °F 93% 30.20 in 2.5 mi SE 4.6 mph - N/A   Overcast
1:55 AM 30.2 °F 25.4 °F 28.4 °F 93% 30.19 in 2.5 mi SE 4.6 mph - N/A   Overcast
2:15 AM 30.2 °F 25.4 °F 28.4 °F 93% 30.19 in 2.5 mi ESE 4.6 mph - N/A   Overcast
2:35 AM 30.2 °F 24.3 °F 28.4 °F 93% 30.18 in 2.5 mi SE 5.8 mph - N/A   Overcast
2:55 AM 30.2 °F - 28.4 °F 93% 30.17 in 2.5 mi Calm Calm - N/A   Overcast
3:15 AM 32.0 °F 28.7 °F 30.2 °F 93% 30.16 in 2.5 mi ESE 3.5 mph - N/A   Overcast
3:35 AM 30.2 °F - 28.4 °F 93% 30.15 in 2.0 mi Calm Calm - N/A   Overcast
3:55 AM 32.0 °F 28.7 °F 30.2 °F 93% 30.13 in 2.0 mi ESE 3.5 mph - N/A   Overcast
4:15 AM 32.0 °F - 30.2 °F 93% 30.12 in 2.0 mi Calm Calm - N/A   Overcast
4:35 AM 32.0 °F - 30.2 °F 93% 30.13 in 2.0 mi Calm Calm - N/A   Overcast
4:55 AM 32.0 °F - 30.2 °F 93% 30.11 in 2.0 mi Calm Calm - N/A   Overcast
5:15 AM 32.0 °F - 30.2 °F 93% 30.11 in 2.0 mi Calm Calm - N/A   Overcast
5:35 AM 32.0 °F - 30.2 °F 93% 30.11 in 2.5 mi Calm Calm - N/A   Overcast
5:55 AM 32.0 °F - 30.2 °F 93% 30.11 in 2.0 mi Calm Calm - N/A   Overcast
6:15 AM 32.0 °F - 30.2 °F 93% 30.10 in 1.8 mi Calm Calm - N/A   Overcast
6:35 AM 32.0 °F 28.7 °F 30.2 °F 93% 30.10 in 1.5 mi NNW 3.5 mph - N/A   Overcast
7:15 AM 32.0 °F - 30.2 °F 93% 30.09 in 0.8 mi Calm Calm - N/A   Overcast
7:35 AM 32.0 °F - 30.2 °F 93% 30.09 in 1.0 mi Calm Calm - N/A   Overcast
7:55 AM 32.0 °F - 30.2 °F 93% 30.09 in 1.5 mi Calm Calm - N/A   Overcast
8:15 AM 32.0 °F - 30.2 °F 93% 30.08 in 1.0 mi Calm Calm - N/A   Overcast
8:35 AM 33.8 °F - 30.2 °F 87% 30.06 in 1.2 mi Calm Calm - N/A   Overcast
8:55 AM 33.8 °F - 32.0 °F 93% 30.07 in 1.2 mi Calm Calm - N/A   Overcast
9:15 AM 33.8 °F - 32.0 °F 93% 30.05 in 1.5 mi Calm Calm - N/A   Overcast
9:35 AM 33.8 °F - 33.8 °F 100% 30.04 in 1.5 mi Calm Calm - N/A   Overcast
9:55 AM 33.8 °F 29.6 °F 33.8 °F 100% 30.03 in 1.5 mi NE 4.6 mph - N/A   Overcast
10:15 AM 35.6 °F 31.7 °F 33.8 °F 93% 30.03 in 1.8 mi NNE 4.6 mph - N/A   Overcast
10:35 AM 35.6 °F - 33.8 °F 93% 30.02 in 1.2 mi Calm Calm - N/A   Overcast
10:55 AM 35.6 °F 31.7 °F 35.6 °F 100% 30.01 in 1.0 mi NNE 4.6 mph - N/A   Overcast
11:15 AM 37.4 °F 33.8 °F 35.6 °F 93% 30.00 in 1.2 mi NNE 4.6 mph - N/A   Overcast
11:35 AM 37.4 °F 33.8 °F 35.6 °F 93% 29.99 in 1.5 mi North 4.6 mph - N/A   Overcast
11:55 AM 37.4 °F 33.8 °F 35.6 °F 93% 29.99 in 1.5 mi North 4.6 mph - N/A   Overcast
12:15 PM 37.4 °F 34.9 °F 37.4 °F 100% 29.98 in 1.2 mi NNE 3.5 mph - N/A   Overcast
12:35 PM 37.4 °F 33.8 °F 37.4 °F 100% 29.98 in 1.8 mi North 4.6 mph - N/A   Overcast
12:55 PM 39.2 °F 35.9 °F 37.4 °F 93% 29.97 in 1.8 mi North 4.6 mph - N/A   Overcast
1:15 PM 39.2 °F 35.9 °F 37.4 °F 93% 29.96 in 2.0 mi NNW 4.6 mph - N/A   Overcast
1:35 PM 39.2 °F 37.0 °F 37.4 °F 93% 29.95 in 2.0 mi North 3.5 mph - N/A   Overcast
1:55 PM 39.2 °F - 39.2 °F 100% 29.95 in 2.5 mi Calm Calm - N/A   Overcast
2:15 PM 41.0 °F 38.0 °F 39.2 °F 93% 29.93 in 10.0 mi NE 4.6 mph - N/A   Mostly Cloudy
2:35 PM 42.8 °F 40.1 °F 42.8 °F 100% 29.92 in 10.0 mi NE 4.6 mph - N/A   Mostly Cloudy
2:55 PM 44.6 °F - 42.8 °F 93% 29.91 in 10.0 mi Calm Calm - N/A   Overcast
3:15 PM 44.6 °F 43.1 °F 42.8 °F 93% 29.90 in 10.0 mi NE 3.5 mph - N/A   Overcast
3:35 PM 44.6 °F 43.1 °F 42.8 °F 93% 29.90 in 10.0 mi NNE 3.5 mph - N/A   Overcast
3:55 PM 44.6 °F - 42.8 °F 93% 29.89 in 10.0 mi Calm Calm - N/A   Overcast
4:15 PM 46.4 °F 45.2 °F 42.8 °F 87% 29.89 in 9.0 mi NNE 3.5 mph - N/A   Overcast
4:35 PM 44.6 °F - 42.8 °F 93% 29.88 in 9.0 mi Calm Calm - N/A   Overcast
4:55 PM 44.6 °F - 42.8 °F 93% 29.88 in 3.0 mi Calm Calm - N/A   Overcast
5:15 PM 44.6 °F 42.2 °F 42.8 °F 93% 29.88 in 5.0 mi NNE 4.6 mph - N/A   Overcast
5:35 PM 44.6 °F - 42.8 °F 93% 29.88 in 1.8 mi Calm Calm - N/A   Overcast
5:55 PM 42.8 °F - 41.0 °F 93% 29.89 in 1.5 mi Calm Calm - N/A   Overcast
6:15 PM 42.8 °F - 41.0 °F 93% 29.88 in 2.0 mi Calm Calm - N/A   Overcast
6:35 PM 42.8 °F - 41.0 °F 93% 29.89 in 1.8 mi Calm Calm - N/A   Overcast
6:55 PM 42.8 °F - 41.0 °F 93% 29.88 in 1.5 mi Calm Calm - N/A   Overcast
7:15 PM 42.8 °F 41.1 °F 39.2 °F 87% 29.87 in 2.5 mi NE 3.5 mph - N/A   Overcast
7:35 PM 42.8 °F - 39.2 °F 87% 29.88 in 3.0 mi Calm Calm - N/A   Overcast
7:55 PM 42.8 °F - 39.2 °F 87% 29.87 in 2.5 mi Calm Calm - N/A   Overcast
8:15 PM 42.8 °F 41.1 °F 39.2 °F 87% 29.87 in 2.5 mi NNE 3.5 mph - N/A   Overcast
8:35 PM 41.0 °F - 39.2 °F 93% 29.85 in 2.5 mi Calm Calm - N/A   Overcast
8:55 PM 41.0 °F - 39.2 °F 93% 29.86 in 2.5 mi Calm Calm - N/A   Overcast
9:15 PM 41.0 °F - 39.2 °F 93% 29.86 in 1.8 mi Calm Calm - N/A   Overcast
9:35 PM 41.0 °F - 39.2 °F 93% 29.85 in 1.2 mi Calm Calm - N/A   Overcast
9:55 PM 41.0 °F 39.0 °F 39.2 °F 93% 29.85 in 1.2 mi North 3.5 mph - N/A   Overcast
10:15 PM 41.0 °F - 39.2 °F 93% 29.85 in 1.5 mi Calm Calm - N/A   Overcast
10:35 PM 41.0 °F - 39.2 °F 93% 29.84 in 1.2 mi Calm Calm - N/A   Overcast
10:55 PM 41.0 °F 39.0 °F 39.2 °F 93% 29.85 in 1.2 mi North 3.5 mph - N/A   Overcast
11:15 PM 39.2 °F 37.0 °F 39.2 °F 100% 29.84 in 1.5 mi North 3.5 mph - N/A   Overcast
11:35 PM 39.2 °F - 37.4 °F 93% 29.84 in 1.2 mi Calm Calm - N/A   Overcast
11:55 PM 39.2 °F - 37.4 °F 93% 29.84 in 1.0 mi Calm Calm - N/A   Overcast