Weather History for Gaithersburg, MD

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Sunday, April 20, 2014

  Actual Average (KCGS) Record (KCGS)
Temperature  
Mean Temperature 50 °F -  
Max Temperature 60 °F 69 °F 95 °F (1976)
Min Temperature 39 °F 46 °F 31 °F (1960)
Degree Days  
Heating Degree Days 16    
Moisture  
Dew Point 31 °F    
Average Humidity 45    
Maximum Humidity 70    
Minimum Humidity 33    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.38 in    
Wind  
Wind Speed 5 mph (ENE)    
Max Wind Speed 14 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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Astronomy

Apr. 20, 2014 Rise Set
Actual Time 6:24 AM EDT 7:50 PM EDT
Civil Twilight 5:56 AM EDT 8:19 PM EDT
Nautical Twilight 5:23 AM EDT 8:52 PM EDT
Astronomical Twilight 4:47 AM EDT 9:28 PM EDT
Moon 12:27 AM EDT (4/20) 10:43 AM EDT (4/20)
Length of Visible Light 14h 22m
Length of Day
13h 26m
Waning Gibbous, 69% of the Moon is Illuminated
Apr 20
Waning Gibbous
Apr 22
Last Quarter
Apr 29
New
May 6
First Quarter
May 14
Full

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 - 26.6 °F 38% 30.34 in 10.0 mi NNE 5.8 mph - N/A   Clear
12:35 AM 53.6 °F - 24.8 °F 33% 30.35 in 10.0 mi NE 6.9 mph - N/A   Clear
12:55 AM 51.8 °F - 24.8 °F 35% 30.35 in 10.0 mi NE 5.8 mph - N/A   Clear
1:15 AM 51.8 °F - 24.8 °F 35% 30.35 in 10.0 mi NE 4.6 mph - N/A   Clear
1:35 AM 51.8 °F - 24.8 °F 35% 30.34 in 10.0 mi NE 5.8 mph - N/A   Clear
1:55 AM 51.8 °F - 24.8 °F 35% 30.34 in 10.0 mi NE 3.5 mph - N/A   Clear
2:15 AM 50.0 °F - 24.8 °F 37% 30.35 in 10.0 mi ENE 3.5 mph - N/A   Clear
2:35 AM 50.0 °F - 24.8 °F 37% 30.34 in 10.0 mi NE 3.5 mph - N/A   Clear
2:55 AM 50.0 °F - 24.8 °F 37% 30.34 in 10.0 mi NNE 3.5 mph - N/A   Clear
3:15 AM 48.2 °F - 24.8 °F 40% 30.34 in 10.0 mi Calm Calm - N/A   Clear
3:35 AM 48.2 °F - 24.8 °F 40% 30.35 in 10.0 mi NNE 3.5 mph - N/A   Clear
3:55 AM 48.2 °F - 24.8 °F 40% 30.35 in 10.0 mi Calm Calm - N/A   Clear
4:15 AM 46.4 °F - 24.8 °F 43% 30.35 in 10.0 mi Calm Calm - N/A   Clear
4:35 AM 46.4 °F 45.2 °F 24.8 °F 43% 30.35 in 10.0 mi NE 3.5 mph - N/A   Clear
4:55 AM 46.4 °F - 24.8 °F 43% 30.35 in 10.0 mi Calm Calm - N/A   Clear
5:15 AM 44.6 °F - 26.6 °F 49% 30.36 in 10.0 mi Calm Calm - N/A   Clear
5:35 AM 42.8 °F - 28.4 °F 57% 30.36 in 10.0 mi Calm Calm - N/A   Clear
5:55 AM 42.8 °F - 28.4 °F 57% 30.37 in 10.0 mi Calm Calm - N/A   Clear
6:15 AM 39.2 °F - 30.2 °F 70% 30.37 in 10.0 mi Calm Calm - N/A   Clear
6:35 AM 41.0 °F 39.0 °F 28.4 °F 61% 30.38 in 10.0 mi North 3.5 mph - N/A   Clear
6:55 AM 42.8 °F - 26.6 °F 53% 30.39 in 10.0 mi Calm Calm - N/A   Clear
7:15 AM 44.6 °F 43.1 °F 26.6 °F 49% 30.40 in 10.0 mi NNE 3.5 mph - N/A   Clear
7:35 AM 44.6 °F 43.1 °F 28.4 °F 53% 30.40 in 10.0 mi NNE 3.5 mph - N/A   Clear
7:55 AM 46.4 °F - 30.2 °F 53% 30.40 in 10.0 mi Calm Calm - N/A   Clear
8:15 AM 48.2 °F - 28.4 °F 46% 30.41 in 10.0 mi NE 5.8 mph - N/A   Clear
8:35 AM 48.2 °F - 28.4 °F 46% 30.41 in 10.0 mi NE 6.9 mph - N/A   Clear
8:55 AM 50.0 °F - 28.4 °F 43% 30.42 in 10.0 mi ENE 4.6 mph - N/A   Clear
9:15 AM 51.8 °F - 28.4 °F 41% 30.43 in 10.0 mi East 9.2 mph 17.3 mph N/A   Clear
9:35 AM 51.8 °F - 30.2 °F 44% 30.44 in 10.0 mi East 9.2 mph 21.9 mph N/A   Clear
9:55 AM 53.6 °F - 33.8 °F 47% 30.45 in 10.0 mi East 13.8 mph 19.6 mph N/A   Clear
10:15 AM 53.6 °F - 33.8 °F 47% 30.46 in 10.0 mi East 9.2 mph - N/A   Clear
10:35 AM 53.6 °F - 33.8 °F 47% 30.46 in 10.0 mi East 12.7 mph 18.4 mph N/A   Clear
10:55 AM 53.6 °F - 33.8 °F 47% 30.46 in 10.0 mi East 6.9 mph - N/A   Clear
11:15 AM 53.6 °F - 33.8 °F 47% 30.47 in 10.0 mi East 9.2 mph 16.1 mph N/A   Clear
11:35 AM 55.4 °F - 33.8 °F 44% 30.47 in 10.0 mi East 8.1 mph - N/A   Clear
11:55 AM 53.6 °F - 33.8 °F 47% 30.46 in 10.0 mi ESE 8.1 mph - N/A   Clear
12:15 PM 55.4 °F - 33.8 °F 44% 30.46 in 10.0 mi ESE 12.7 mph 16.1 mph N/A   Clear
12:35 PM 55.4 °F - 35.6 °F 47% 30.45 in 10.0 mi SE 11.5 mph - N/A   Partly Cloudy
12:55 PM 55.4 °F - 33.8 °F 44% 30.44 in 10.0 mi ESE 8.1 mph 16.1 mph N/A   Clear
1:15 PM 57.2 °F - 35.6 °F 44% 30.44 in 10.0 mi East 8.1 mph - N/A   Clear
1:35 PM 55.4 °F - 33.8 °F 44% 30.42 in 10.0 mi East 4.6 mph - N/A   Partly Cloudy
2:15 PM 55.4 °F - 33.8 °F 44% 30.41 in 10.0 mi East 5.8 mph - N/A   Partly Cloudy
2:35 PM 57.2 °F - 33.8 °F 41% 30.41 in 10.0 mi ENE 4.6 mph - N/A   Clear
2:55 PM 57.2 °F - 33.8 °F 41% 30.40 in 10.0 mi NE 9.2 mph - N/A   Clear
3:15 PM 59.0 °F - 33.8 °F 39% 30.39 in 10.0 mi NNE 8.1 mph - N/A   Clear
3:35 PM 59.0 °F - 33.8 °F 39% 30.38 in 10.0 mi ENE 5.8 mph - N/A   Clear
3:55 PM 59.0 °F - 33.8 °F 39% 30.37 in 10.0 mi ENE 5.8 mph - N/A   Clear
4:15 PM 59.0 °F - 33.8 °F 39% 30.37 in 10.0 mi East 6.9 mph - N/A   Clear
4:35 PM 59.0 °F - 33.8 °F 39% 30.37 in 10.0 mi East 4.6 mph - N/A   Clear
4:55 PM 59.0 °F - 32.0 °F 36% 30.37 in 10.0 mi NE 8.1 mph - N/A   Clear
5:15 PM 60.8 °F - 33.8 °F 36% 30.36 in 10.0 mi East 6.9 mph - N/A   Clear
5:35 PM 59.0 °F - 33.8 °F 39% 30.36 in 10.0 mi East 4.6 mph - N/A   Clear
5:55 PM 59.0 °F - 32.0 °F 36% 30.36 in 10.0 mi ESE 10.4 mph - N/A   Clear
6:15 PM 59.0 °F - 32.0 °F 36% 30.36 in 10.0 mi Calm Calm - N/A   Clear
6:35 PM 57.2 °F - 33.8 °F 41% 30.35 in 10.0 mi East 9.2 mph - N/A   Clear
7:15 PM 57.2 °F - 32.0 °F 38% 30.35 in 10.0 mi East 4.6 mph - N/A   Clear
7:35 PM 55.4 °F - 32.0 °F 41% 30.35 in 10.0 mi East 6.9 mph - N/A   Clear
7:55 PM 55.4 °F - 33.8 °F 44% 30.35 in 10.0 mi ESE 5.8 mph - N/A   Clear
8:15 PM 53.6 °F - 33.8 °F 47% 30.35 in 10.0 mi ESE 5.8 mph - N/A   Clear
8:35 PM 51.8 °F - 33.8 °F 50% 30.35 in 10.0 mi East 5.8 mph - N/A   Clear
8:55 PM 51.8 °F - 33.8 °F 50% 30.35 in 10.0 mi ESE 6.9 mph - N/A   Clear
9:15 PM 51.8 °F - 33.8 °F 50% 30.35 in 10.0 mi SE 8.1 mph - N/A   Clear
9:35 PM 51.8 °F - 33.8 °F 50% 30.35 in 10.0 mi ESE 8.1 mph - N/A   Clear
9:55 PM 48.2 °F - 33.8 °F 58% 30.35 in 10.0 mi ESE 5.8 mph - N/A   Clear
10:15 PM 48.2 °F - 33.8 °F 58% 30.35 in 10.0 mi ESE 4.6 mph - N/A   Clear
10:35 PM 48.2 °F - 32.0 °F 54% 30.35 in 10.0 mi ESE 5.8 mph - N/A   Clear
10:55 PM 44.6 °F 43.1 °F 32.0 °F 61% 30.35 in 10.0 mi ESE 3.5 mph - N/A   Clear
11:15 PM 44.6 °F - 32.0 °F 61% 30.34 in 10.0 mi Calm Calm - N/A   Clear
11:35 PM 44.6 °F - 32.0 °F 61% 30.33 in 10.0 mi Calm Calm - N/A   Clear
11:55 PM 42.8 °F - 32.0 °F 66% 30.33 in 10.0 mi Calm Calm - N/A   Clear