Weather History for Gaithersburg, MD

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Monday, March 11, 2013

  Actual Average (KCGS) Record (KCGS)
Temperature  
Mean Temperature 48 °F -  
Max Temperature 57 °F 54 °F 77 °F (1967)
Min Temperature 39 °F 32 °F -1 °F (1960)
Degree Days  
Heating Degree Days 17    
Moisture  
Dew Point 41 °F    
Average Humidity 73    
Maximum Humidity 93    
Minimum Humidity 46    
Precipitation  
Precipitation 0.00 in - - ()
Sea Level Pressure  
Sea Level Pressure 30.13 in    
Wind  
Wind Speed 9 mph (SSE)    
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

Mar. 11, 2013 Rise Set
Actual Time 7:25 AM EDT 7:11 PM EDT
Civil Twilight 6:59 AM EDT 7:38 PM EDT
Nautical Twilight 6:28 AM EDT 8:09 PM EDT
Astronomical Twilight 5:57 AM EDT 8:40 PM EDT
Moon 6:58 AM EDT (3/11) 7:21 PM EDT (3/11)
Length of Visible Light 12h 39m
Length of Day
11h 45m
Waning Crescent, 0% of the Moon is Illuminated
Mar 11
Waning Crescent
Mar 11
New
Mar 19
First Quarter
Mar 27
Full
Apr 3
Last Quarter

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 44.6 °F 39.7 °F 24.8 °F 46% 30.26 in 10.0 mi SSE 9.2 mph - N/A   Clear
12:35 AM 44.6 °F 40.7 °F 26.6 °F 49% 30.25 in 10.0 mi SSE 6.9 mph - N/A   Clear
12:55 AM 42.8 °F 38.0 °F 28.4 °F 57% 30.25 in 10.0 mi SSE 8.1 mph - N/A   Clear
1:15 AM 42.8 °F 38.6 °F 30.2 °F 61% 30.25 in 10.0 mi SSE 6.9 mph - N/A   Clear
1:35 AM 42.8 °F 37.5 °F 32.0 °F 66% 30.24 in 10.0 mi SSE 9.2 mph - N/A   Clear
1:55 AM 42.8 °F 38.6 °F 33.8 °F 70% 30.25 in 10.0 mi SSE 6.9 mph - N/A   Clear
2:15 AM 41.0 °F 39.0 °F 33.8 °F 76% 30.26 in 10.0 mi South 3.5 mph - N/A   Clear
2:35 AM 41.0 °F 38.0 °F 33.8 °F 76% 30.25 in 10.0 mi SE 4.6 mph - N/A   Clear
2:55 AM 41.0 °F 37.1 °F 35.6 °F 81% 30.23 in 10.0 mi SE 5.8 mph - N/A   Clear
3:15 AM 41.0 °F 38.0 °F 35.6 °F 81% 30.23 in 10.0 mi SSE 4.6 mph - N/A   Clear
3:35 AM 39.2 °F 35.0 °F 35.6 °F 87% 30.23 in 10.0 mi SSE 5.8 mph - N/A   Clear
3:55 AM 39.2 °F 35.9 °F 37.4 °F 93% 30.22 in 10.0 mi SSE 4.6 mph - N/A   Scattered Clouds
4:15 AM 41.0 °F 37.1 °F 37.4 °F 87% 30.22 in 10.0 mi SSE 5.8 mph - N/A   Scattered Clouds
4:35 AM 42.8 °F 38.0 °F 37.4 °F 81% 30.21 in 10.0 mi South 8.1 mph - N/A   Mostly Cloudy
4:55 AM 41.0 °F 37.1 °F 37.4 °F 87% 30.20 in 10.0 mi South 5.8 mph - N/A   Overcast
5:15 AM 42.8 °F 37.5 °F 39.2 °F 87% 30.20 in 10.0 mi SSE 9.2 mph - N/A   Overcast
5:35 AM 42.8 °F 37.5 °F 39.2 °F 87% 30.19 in 10.0 mi South 9.2 mph - N/A   Overcast
5:55 AM 42.8 °F 36.6 °F 39.2 °F 87% 30.19 in 10.0 mi South 11.5 mph 17.3 mph N/A   Overcast
6:15 AM 42.8 °F 38.0 °F 39.2 °F 87% 30.19 in 10.0 mi South 8.1 mph - N/A   Overcast
6:35 AM 42.8 °F 38.0 °F 39.2 °F 87% 30.20 in 10.0 mi South 8.1 mph - N/A   Overcast
6:55 AM 42.8 °F 37.5 °F 39.2 °F 87% 30.20 in 10.0 mi South 9.2 mph - N/A   Overcast
7:15 AM 42.8 °F 38.6 °F 39.2 °F 87% 30.20 in 10.0 mi South 6.9 mph - N/A   Overcast
7:35 AM 42.8 °F 37.0 °F 39.2 °F 87% 30.19 in 8.0 mi SSE 10.4 mph 17.3 mph N/A   Overcast
7:55 AM 42.8 °F 38.0 °F 39.2 °F 87% 30.19 in 8.0 mi South 8.1 mph - N/A   Overcast
8:15 AM 42.8 °F 38.6 °F 39.2 °F 87% 30.20 in 9.0 mi South 6.9 mph - N/A   Overcast
8:35 AM 44.6 °F 39.2 °F 39.2 °F 81% 30.20 in 9.0 mi South 10.4 mph - N/A   Mostly Cloudy
8:55 AM 44.6 °F 39.2 °F 39.2 °F 81% 30.20 in 8.0 mi SSE 10.4 mph - N/A   Mostly Cloudy
9:15 AM 44.6 °F 41.4 °F 39.2 °F 81% 30.21 in 9.0 mi South 5.8 mph - N/A   Partly Cloudy
9:35 AM 44.6 °F 40.2 °F 39.2 °F 81% 30.20 in 10.0 mi SSE 8.1 mph - N/A   Clear
9:55 AM 44.6 °F 39.2 °F 39.2 °F 81% 30.19 in 10.0 mi SSE 10.4 mph - N/A   Clear
10:15 AM 46.4 °F 42.4 °F 39.2 °F 76% 30.19 in 10.0 mi South 8.1 mph - N/A   Clear
10:35 AM 46.4 °F 42.4 °F 39.2 °F 76% 30.18 in 10.0 mi SSE 8.1 mph - N/A   Clear
10:55 AM 48.2 °F - 39.2 °F 71% 30.17 in 10.0 mi SSE 10.4 mph - N/A   Clear
11:15 AM 48.2 °F - 39.2 °F 71% 30.17 in 10.0 mi South 6.9 mph - N/A   Clear
11:35 AM 50.0 °F - 39.2 °F 66% 30.17 in 10.0 mi SSW 8.1 mph - N/A   Clear
11:55 AM 51.8 °F - 39.2 °F 62% 30.17 in 10.0 mi South 10.4 mph - N/A   Clear
12:15 PM 53.6 °F - 41.0 °F 62% 30.16 in 10.0 mi South 5.8 mph - N/A   Partly Cloudy
12:35 PM 53.6 °F - 42.8 °F 67% 30.15 in 10.0 mi South 8.1 mph - N/A   Mostly Cloudy
12:55 PM 53.6 °F - 42.8 °F 67% 30.15 in 10.0 mi South 5.8 mph - N/A   Partly Cloudy
1:15 PM 55.4 °F - 42.8 °F 63% 30.14 in 10.0 mi SSW 10.4 mph - N/A   Clear
1:35 PM 57.2 °F - 42.8 °F 59% 30.13 in 10.0 mi SSW 13.8 mph 18.4 mph N/A   Clear
1:55 PM 57.2 °F - 44.6 °F 63% 30.11 in 10.0 mi South 9.2 mph - N/A   Clear
2:15 PM 57.2 °F - 44.6 °F 63% 30.11 in 10.0 mi SSW 9.2 mph 17.3 mph N/A   Partly Cloudy
2:35 PM 57.2 °F - 44.6 °F 63% 30.09 in 10.0 mi SSW 9.2 mph 18.4 mph N/A   Mostly Cloudy
2:55 PM 57.2 °F - 44.6 °F 63% 30.09 in 10.0 mi South 12.7 mph - N/A   Mostly Cloudy
3:15 PM 57.2 °F - 44.6 °F 63% 30.08 in 10.0 mi South 10.4 mph 16.1 mph N/A   Mostly Cloudy
3:35 PM 57.2 °F - 44.6 °F 63% 30.08 in 10.0 mi South 10.4 mph 17.3 mph N/A   Mostly Cloudy
3:55 PM 57.2 °F - 44.6 °F 63% 30.07 in 10.0 mi SSE 10.4 mph - N/A   Overcast
4:15 PM 57.2 °F - 44.6 °F 63% 30.07 in 10.0 mi South 12.7 mph - N/A   Overcast
4:35 PM 57.2 °F - 46.4 °F 67% 30.05 in 10.0 mi SSE 12.7 mph 16.1 mph N/A   Mostly Cloudy
4:55 PM 57.2 °F - 46.4 °F 67% 30.04 in 10.0 mi SSE 11.5 mph 18.4 mph N/A   Scattered Clouds
5:15 PM 57.2 °F - 46.4 °F 67% 30.02 in 10.0 mi SSE 12.7 mph 16.1 mph N/A   Partly Cloudy
5:35 PM 57.2 °F - 46.4 °F 67% 30.01 in 10.0 mi SSE 13.8 mph 17.3 mph N/A   Clear
5:55 PM 55.4 °F - 44.6 °F 67% 30.02 in 10.0 mi SE 9.2 mph - N/A   Clear
6:15 PM 55.4 °F - 44.6 °F 67% 30.02 in 10.0 mi SE 12.7 mph - N/A   Clear
6:35 PM 55.4 °F - 44.6 °F 67% 30.03 in 10.0 mi SE 8.1 mph - N/A   Clear
7:15 PM 55.4 °F - 46.4 °F 72% 30.01 in 10.0 mi SE 12.7 mph 16.1 mph N/A   Clear
7:35 PM 55.4 °F - 46.4 °F 72% 29.99 in 10.0 mi SE 10.4 mph - N/A   Clear
7:55 PM 55.4 °F - 46.4 °F 72% 29.99 in 10.0 mi SE 12.7 mph - N/A   Clear
8:15 PM 55.4 °F - 46.4 °F 72% 29.99 in 10.0 mi SSE 16.1 mph 20.7 mph N/A   Clear
8:35 PM 55.4 °F - 46.4 °F 72% 30.01 in 10.0 mi SSE 12.7 mph 19.6 mph N/A   Clear
8:55 PM 55.4 °F - 46.4 °F 72% 30.00 in 10.0 mi SSE 15.0 mph - N/A   Clear
9:15 PM 53.6 °F - 46.4 °F 77% 30.01 in 10.0 mi SE 13.8 mph - N/A   Clear
9:35 PM 53.6 °F - 46.4 °F 77% 30.01 in 10.0 mi SE 10.4 mph - N/A   Mostly Cloudy
9:55 PM 53.6 °F - 46.4 °F 77% 30.01 in 10.0 mi SSE 11.5 mph - N/A   Overcast
10:15 PM 53.6 °F - 46.4 °F 77% 30.00 in 10.0 mi SSE 11.5 mph - N/A   Overcast
10:35 PM 53.6 °F - 46.4 °F 77% 30.00 in 10.0 mi SSE 13.8 mph - N/A   Mostly Cloudy
10:55 PM 55.4 °F - 44.6 °F 67% 29.99 in 10.0 mi SSE 11.5 mph - N/A   Clear
11:15 PM 55.4 °F - 46.4 °F 72% 29.98 in 10.0 mi SSE 12.7 mph - N/A   Scattered Clouds
11:35 PM 55.4 °F - 46.4 °F 72% 29.97 in 10.0 mi SSE 13.8 mph 20.7 mph N/A   Overcast
11:55 PM 55.4 °F - 46.4 °F 72% 29.96 in 10.0 mi SSE 12.7 mph 21.9 mph N/A   Mostly Cloudy