Weather History for Gaithersburg, MD

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Thursday, April 25, 2013

  Actual Average (KCGS) Record (KCGS)
Temperature  
Mean Temperature 52 °F -  
Max Temperature 62 °F 69 °F 94 °F (1960)
Min Temperature 42 °F 45 °F 27 °F (1956)
Degree Days  
Heating Degree Days 13    
Growing Degree Days 2 (Base 50)    
Moisture  
Dew Point 31 °F    
Average Humidity 45    
Maximum Humidity 62    
Minimum Humidity 27    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.24 in    
Wind  
Wind Speed 10 mph (NW)    
Max Wind Speed 22 mph    
Max Gust Speed 32 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

Apr. 25, 2013 Rise Set
Actual Time 6:17 AM EDT 7:56 PM EDT
Civil Twilight 5:49 AM EDT 8:24 PM EDT
Nautical Twilight 5:14 AM EDT 8:59 PM EDT
Astronomical Twilight 4:38 AM EDT 9:35 PM EDT
Moon 8:06 PM EDT (4/25) 5:59 AM EDT (4/25)
Length of Visible Light 14h 35m
Length of Day
13h 38m
Full, 100% of the Moon is Illuminated
Apr 25
Full
Apr 25
Full
May 2
Last Quarter
May 9
New
May 18
First Quarter

Hourly Weather History & Observations

Time (EDT) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:35 AM 55.4 °F - 41.0 °F 58% 30.05 in 10.0 mi NNW 17.3 mph 25.3 mph N/A   Mostly Cloudy
12:55 AM 53.6 °F - 39.2 °F 58% 30.06 in 10.0 mi NNW 10.4 mph 17.3 mph N/A   Overcast
1:15 AM 53.6 °F - 37.4 °F 54% 30.07 in 10.0 mi NW 20.7 mph 29.9 mph N/A   Overcast
1:35 AM 53.6 °F - 35.6 °F 51% 30.08 in 10.0 mi NNW 18.4 mph 25.3 mph N/A   Overcast
1:55 AM 51.8 °F - 37.4 °F 58% 30.09 in 10.0 mi NNW 12.7 mph 29.9 mph N/A   Overcast
2:15 AM 50.0 °F - 35.6 °F 58% 30.10 in 10.0 mi NNW 10.4 mph 26.5 mph N/A   Mostly Cloudy
2:35 AM 48.2 °F - 30.2 °F 50% 30.11 in 10.0 mi NNW 16.1 mph 29.9 mph N/A   Overcast
2:55 AM 48.2 °F - 30.2 °F 50% 30.10 in 10.0 mi NNW 12.7 mph 29.9 mph N/A   Overcast
3:15 AM 46.4 °F 38.5 °F 30.2 °F 53% 30.12 in 10.0 mi NW 21.9 mph 32.2 mph N/A   Overcast
3:35 AM 46.4 °F 39.2 °F 30.2 °F 53% 30.14 in 10.0 mi NW 18.4 mph 26.5 mph N/A   Overcast
3:55 AM 46.4 °F 39.8 °F 28.4 °F 50% 30.15 in 10.0 mi NW 16.1 mph 26.5 mph N/A   Overcast
4:15 AM 46.4 °F 40.4 °F 28.4 °F 50% 30.16 in 10.0 mi NNW 13.8 mph 26.5 mph N/A   Overcast
4:35 AM 44.6 °F 39.7 °F 28.4 °F 53% 30.18 in 10.0 mi NNW 9.2 mph 16.1 mph N/A   Mostly Cloudy
4:55 AM 44.6 °F 40.2 °F 28.4 °F 53% 30.19 in 10.0 mi NNW 8.1 mph - N/A   Partly Cloudy
5:15 AM 42.8 °F 37.5 °F 28.4 °F 57% 30.21 in 10.0 mi NNW 9.2 mph - N/A   Clear
5:35 AM 42.8 °F 36.2 °F 28.4 °F 57% 30.21 in 10.0 mi NW 12.7 mph 19.6 mph N/A   Clear
5:55 AM 42.8 °F 36.6 °F 28.4 °F 57% 30.23 in 10.0 mi NW 11.5 mph - N/A   Clear
6:15 AM 42.8 °F 38.6 °F 30.2 °F 61% 30.24 in 10.0 mi NNW 6.9 mph - N/A   Clear
6:35 AM 42.8 °F 40.1 °F 30.2 °F 61% 30.24 in 10.0 mi NNW 4.6 mph - N/A   Clear
6:55 AM 42.8 °F 39.3 °F 30.2 °F 61% 30.25 in 10.0 mi NNW 5.8 mph - N/A   Clear
7:15 AM 42.8 °F 38.6 °F 30.2 °F 61% 30.26 in 10.0 mi NNW 6.9 mph - N/A   Clear
7:35 AM 44.6 °F 39.7 °F 30.2 °F 57% 30.27 in 10.0 mi NNW 9.2 mph - N/A   Clear
7:55 AM 44.6 °F 40.7 °F 30.2 °F 57% 30.28 in 10.0 mi NNW 6.9 mph - N/A   Clear
8:15 AM 46.4 °F 40.7 °F 30.2 °F 53% 30.28 in 10.0 mi NNW 12.7 mph 18.4 mph N/A   Clear
8:35 AM 46.4 °F 41.9 °F 30.2 °F 53% 30.29 in 10.0 mi NW 9.2 mph - N/A   Clear
8:55 AM 46.4 °F 44.3 °F 30.2 °F 53% 30.29 in 10.0 mi North 4.6 mph - N/A   Clear
9:15 AM 48.2 °F - 30.2 °F 50% 30.29 in 10.0 mi North 3.5 mph - N/A   Clear
9:35 AM 48.2 °F - 30.2 °F 50% 30.30 in 10.0 mi NNW 4.6 mph - N/A   Clear
9:55 AM 48.2 °F - 30.2 °F 50% 30.30 in 10.0 mi North 5.8 mph - N/A   Clear
10:15 AM 50.0 °F - 30.2 °F 47% 30.30 in 10.0 mi NW 13.8 mph 19.6 mph N/A   Clear
10:35 AM 51.8 °F - 30.2 °F 44% 30.30 in 10.0 mi NW 9.2 mph - N/A   Clear
10:55 AM 51.8 °F - 30.2 °F 44% 30.30 in 10.0 mi NW 10.4 mph 18.4 mph N/A   Clear
11:15 AM 51.8 °F - 32.0 °F 47% 30.31 in 10.0 mi NNE 5.8 mph - N/A   Clear
11:35 AM 53.6 °F - 30.2 °F 41% 30.30 in 10.0 mi WNW 12.7 mph - N/A   Clear
11:55 AM 53.6 °F - 30.2 °F 41% 30.30 in 10.0 mi NW 11.5 mph 17.3 mph N/A   Clear
12:15 PM 53.6 °F - 30.2 °F 41% 30.29 in 10.0 mi NW 10.4 mph - N/A   Clear
12:35 PM 55.4 °F - 30.2 °F 38% 30.29 in 10.0 mi NW 8.1 mph 16.1 mph N/A   Clear
12:55 PM 55.4 °F - 30.2 °F 38% 30.28 in 10.0 mi North 3.5 mph - N/A   Clear
1:15 PM 55.4 °F - 30.2 °F 38% 30.28 in 10.0 mi NNW 4.6 mph - N/A   Clear
1:35 PM 57.2 °F - 30.2 °F 36% 30.27 in 10.0 mi NW 5.8 mph - N/A   Clear
1:55 PM 57.2 °F - 30.2 °F 36% 30.26 in 10.0 mi Calm Calm - N/A   Clear
2:15 PM 57.2 °F - 30.2 °F 36% 30.26 in 10.0 mi West 8.1 mph - N/A   Clear
2:35 PM 59.0 °F - 30.2 °F 34% 30.26 in 10.0 mi NW 11.5 mph - N/A   Clear
2:55 PM 59.0 °F - 30.2 °F 34% 30.25 in 10.0 mi NW 10.4 mph - N/A   Clear
3:15 PM 60.8 °F - 33.8 °F 36% 30.25 in 10.0 mi WNW 4.6 mph - N/A   Clear
3:35 PM 59.0 °F - 28.4 °F 31% 30.25 in 10.0 mi WNW 4.6 mph - N/A   Clear
3:55 PM 60.8 °F - 28.4 °F 29% 30.23 in 10.0 mi West 5.8 mph - N/A   Clear
4:15 PM 60.8 °F - 28.4 °F 29% 30.24 in 10.0 mi NW 8.1 mph - N/A   Clear
4:35 PM 60.8 °F - 30.2 °F 31% 30.23 in 10.0 mi NW 4.6 mph - N/A   Clear
4:55 PM 60.8 °F - 30.2 °F 31% 30.23 in 10.0 mi WSW 5.8 mph - N/A   Clear
5:15 PM 60.8 °F - 30.2 °F 31% 30.23 in 10.0 mi NNW 3.5 mph - N/A   Clear
5:35 PM 62.6 °F - 28.4 °F 27% 30.23 in 10.0 mi SW 4.6 mph - N/A   Clear
5:55 PM 60.8 °F - 26.6 °F 27% 30.23 in 10.0 mi WNW 6.9 mph - N/A   Clear
6:15 PM 60.8 °F - 28.4 °F 29% 30.23 in 10.0 mi West 4.6 mph - N/A   Clear
6:35 PM 60.8 °F - 28.4 °F 29% 30.23 in 10.0 mi NNW 3.5 mph - N/A   Clear
6:55 PM 60.8 °F - 28.4 °F 29% 30.23 in 10.0 mi Calm Calm - N/A   Clear
7:15 PM 60.8 °F - 26.6 °F 27% 30.24 in 10.0 mi Calm Calm - N/A   Clear
7:35 PM 60.8 °F - 26.6 °F 27% 30.24 in 10.0 mi Calm Calm - N/A   Clear
7:55 PM 57.2 °F - 26.6 °F 31% 30.24 in 10.0 mi SSE 4.6 mph - N/A   Clear
8:15 PM 55.4 °F - 28.4 °F 36% 30.24 in 10.0 mi SE 3.5 mph - N/A   Clear
8:35 PM 55.4 °F - 28.4 °F 36% 30.25 in 10.0 mi SE 3.5 mph - N/A   Clear
8:55 PM 53.6 °F - 28.4 °F 38% 30.26 in 10.0 mi Calm Calm - N/A   Clear
9:15 PM 51.8 °F - 30.2 °F 44% 30.27 in 10.0 mi Calm Calm - N/A   Clear
9:35 PM 51.8 °F - 28.4 °F 41% 30.28 in 10.0 mi Calm Calm - N/A   Clear
9:55 PM 50.0 °F - 30.2 °F 47% 30.29 in 10.0 mi SE 5.8 mph - N/A   Scattered Clouds
10:15 PM 50.0 °F - 33.8 °F 54% 30.30 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
10:35 PM 48.2 °F - 33.8 °F 58% 30.31 in 10.0 mi Calm Calm - N/A   Scattered Clouds
10:55 PM 48.2 °F - 35.6 °F 62% 30.32 in 10.0 mi Calm Calm - N/A   Mostly Cloudy
11:15 PM 48.2 °F - 35.6 °F 62% 30.34 in 10.0 mi NW 11.5 mph - N/A   Partly Cloudy
11:35 PM 48.2 °F - 35.6 °F 62% 30.34 in 10.0 mi Calm Calm - N/A   Clear
11:55 PM 48.2 °F - 33.8 °F 58% 30.34 in 10.0 mi Calm Calm - N/A   Clear