Weather History for Martinsburg, WV

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Thursday, December 15, 2011

  Actual Average Record
Temperature  
Mean Temperature 51 °F 34 °F  
Max Temperature 64 °F 43 °F 76 °F (1927)
Min Temperature 37 °F 25 °F 5 °F (1960)
Degree Days  
Heating Degree Days 14 31  
Month to date heating degree days 371 433  
Since 1 July heating degree days 1229 1503  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 1284 895  
Moisture  
Dew Point 40 °F    
Average Humidity 66    
Maximum Humidity 79    
Minimum Humidity 52    
Precipitation  
Precipitation T in 0.09 in 1.35 in (1948)
Month to date precipitation 1.57 1.49  
Year to date precipitation 45.63 37.48  
Sea Level Pressure  
Sea Level Pressure 29.98 in    
Wind  
Wind Speed 6 mph (South)    
Max Wind Speed 20 mph    
Max Gust Speed 31 mph    
Visibility 10 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Daily Weather History Graph

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Date:

Astronomy

Dec. 15, 2011 Rise Set
Actual Time 7:24 AM EST 4:49 PM EST
Civil Twilight 6:54 AM EST 5:19 PM EST
Nautical Twilight 6:20 AM EST 5:53 PM EST
Astronomical Twilight 5:48 AM EST 6:25 PM EST
Moon 10:12 PM EST (12/15) 10:41 AM EST (12/15)
Length of Visible Light 10h 25m
Length of Day
9h 24m
Waning Gibbous, 75% of the Moon is Illuminated
Dec 15
Waning Gibbous
Dec 17
Last Quarter
Dec 24
New
Jan 1
First Quarter
Jan 9
Full

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:53 AM 39.0 °F - 30.9 °F 73% 30.20 in 10.0 mi Calm Calm - N/A   Clear
1:53 AM 39.9 °F - 33.1 °F 77% 30.18 in 10.0 mi Calm Calm - N/A   Overcast
2:53 AM 37.9 °F - 30.9 °F 76% 30.17 in 10.0 mi Calm Calm - N/A   Clear
3:53 AM 39.9 °F 36.7 °F 32.0 °F 73% 30.14 in 10.0 mi SSE 4.6 mph - N/A   Clear
4:53 AM 41.0 °F 36.4 °F 30.9 °F 67% 30.13 in 10.0 mi SSE 6.9 mph - N/A   Clear
5:53 AM 42.1 °F - 30.9 °F 65% 30.11 in 10.0 mi Calm Calm - N/A   Clear
6:53 AM 44.1 °F 40.8 °F 33.1 °F 65% 30.09 in 10.0 mi SSE 5.8 mph - N/A   Partly Cloudy
7:53 AM 46.0 °F 42.5 °F 35.1 °F 66% 30.08 in 10.0 mi South 6.9 mph - N/A   Mostly Cloudy
8:53 AM 48.2 °F - 37.4 °F 66% 30.05 in 10.0 mi South 4.6 mph - N/A   Clear
9:53 AM 53.6 °F - 42.8 °F 67% 30.03 in 10.0 mi SSW 8.1 mph 17.3 mph N/A   Clear
10:53 AM 52.0 °F - 42.1 °F 69% 29.99 in 10.0 mi South 4.6 mph - N/A   Clear
11:53 AM 55.0 °F - 43.0 °F 64% 29.96 in 10.0 mi SSW 4.6 mph - N/A   Scattered Clouds
12:53 PM 54.0 °F - 44.1 °F 69% 29.92 in 10.0 mi SSE 4.6 mph - N/A   Scattered Clouds
1:53 PM 57.0 °F - 44.1 °F 62% 29.89 in 10.0 mi South 5.8 mph - 0.00 in   Clear
2:53 PM 57.0 °F - 44.1 °F 62% 29.88 in 10.0 mi SE 5.8 mph - N/A   Mostly Cloudy
3:53 PM 59.0 °F - 44.1 °F 58% 29.86 in 10.0 mi South 6.9 mph - N/A   Overcast
4:53 PM 59.0 °F - 45.0 °F 60% 29.87 in 10.0 mi South 4.6 mph - N/A   Overcast
5:53 PM 61.0 °F - 46.0 °F 58% 29.86 in 10.0 mi South 9.2 mph - N/A   Overcast
6:53 PM 60.8 °F - 46.4 °F 59% 29.84 in 10.0 mi SSE 5.8 mph - N/A   Overcast
7:53 PM 63.0 °F - 46.9 °F 56% 29.84 in 10.0 mi SSW 5.8 mph - N/A   Overcast
8:53 PM 61.0 °F - 46.9 °F 60% 29.84 in 10.0 mi SSW 6.9 mph - N/A   Scattered Clouds
9:53 PM 60.1 °F - 45.0 °F 57% 29.86 in 10.0 mi WSW 6.9 mph - N/A   Clear
10:53 PM 62.1 °F - 44.1 °F 52% 29.86 in 10.0 mi WSW 13.8 mph 19.6 mph N/A   Mostly Cloudy
11:53 PM 62.1 °F - 45.0 °F 53% 29.89 in 10.0 mi West 13.8 mph 21.9 mph N/A   Scattered Clouds