Weather History for Williamsport, PA

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Friday, February 18, 2011

  Actual Average Record
Temperature  
Mean Temperature 50 °F 30 °F  
Max Temperature 66 °F 39 °F 66 °F (2011)
Min Temperature 34 °F 22 °F -12 °F (1979)
Degree Days  
Heating Degree Days 15 35  
Month to date heating degree days 657 653  
Since 1 July heating degree days 4205 4132  
Cooling Degree Days 0 0  
Month to date cooling degree days 0 0  
Year to date cooling degree days 0 0  
Moisture  
Dew Point 29 °F    
Average Humidity 53    
Maximum Humidity 89    
Minimum Humidity 17    
Precipitation  
Precipitation 0.00 in 0.08 in 1.49 in (1998)
Month to date precipitation 1.71 1.49  
Year to date precipitation 2.96 4.19  
Snow  
Snow 0.00 in - - ()
Month to date snowfall 3.1  
Since 1 July snowfall 22.1  
Snow Depth T in    
Sea Level Pressure  
Sea Level Pressure 29.80 in    
Wind  
Wind Speed 9 mph (West)    
Max Wind Speed 31 mph    
Max Gust Speed 45 mph    
Visibility 8 miles    
Events      
T = Trace of Precipitation, MM = Missing Value Source: NWS Daily Summary

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Astronomy

Feb. 18, 2011 Rise Set
Actual Time 6:58 AM EST 5:45 PM EST
Civil Twilight 6:30 AM EST 6:13 PM EST
Nautical Twilight 5:58 AM EST 6:45 PM EST
Astronomical Twilight 5:26 AM EST 7:17 PM EST
Moon 6:36 PM EST (2/18) 6:46 AM EST (2/18)
Length of Visible Light 11h 42m
Length of Day
10h 46m
Full, 100% of the Moon is Illuminated
Feb 18
Full
Feb 24
Last Quarter
Mar 4
New
Mar 12
First Quarter
Mar 19
Full

Hourly Weather History & Observations

Time (EST) Temp. Windchill Dew Point Humidity Pressure Visibility Wind Dir Wind Speed Gust Speed Precip Events Conditions
12:54 AM 37.0 °F - 33.1 °F 86% 29.89 in 7.0 mi Calm Calm - N/A   Clear
1:54 AM 35.1 °F - 32.0 °F 89% 29.86 in 7.0 mi Calm Calm - N/A   Clear
2:54 AM 35.1 °F 32.2 °F 32.0 °F 89% 29.85 in 6.0 mi West 3.5 mph - N/A   Scattered Clouds
3:54 AM 37.0 °F 31.6 °F 33.1 °F 86% 29.85 in 6.0 mi West 6.9 mph - N/A   Overcast
4:54 AM 37.0 °F - 33.1 °F 86% 29.85 in 7.0 mi Calm Calm - N/A   Overcast
5:54 AM 37.0 °F - 34.0 °F 89% 29.86 in 7.0 mi Calm Calm - N/A   Overcast
6:54 AM 37.0 °F 34.5 °F 34.0 °F 89% 29.84 in 7.0 mi South 3.5 mph - N/A   Overcast
7:54 AM 37.9 °F - 34.0 °F 86% 29.84 in 6.0 mi Calm Calm - N/A   Overcast
8:54 AM 39.0 °F - 34.0 °F 82% 29.83 in 5.0 mi Calm Calm - N/A   Haze
9:54 AM 42.1 °F - 35.1 °F 76% 29.82 in 5.0 mi Calm Calm - N/A   Haze
10:54 AM 46.9 °F - 37.0 °F 68% 29.80 in 7.0 mi ESE 3.5 mph - N/A   Overcast
11:54 AM 54.0 °F - 39.9 °F 59% 29.78 in 9.0 mi Calm Calm - N/A   Mostly Cloudy
12:54 PM 64.0 °F - 46.0 °F 52% 29.75 in 10.0 mi West 9.2 mph - N/A   Mostly Cloudy
1:54 PM 64.9 °F - 42.1 °F 43% 29.71 in 10.0 mi West 18.4 mph 27.6 mph N/A   Clear
2:54 PM 64.4 °F - 39.2 °F 40% 29.71 in 10.0 mi West 16.1 mph - N/A   Clear
3:54 PM 64.4 °F - 28.4 °F 26% 29.71 in 10.0 mi West 17.3 mph 29.9 mph N/A   Clear
4:54 PM 62.1 °F - 24.1 °F 23% 29.73 in 10.0 mi West 18.4 mph 31.1 mph N/A   Partly Cloudy
5:54 PM 57.0 °F - 26.1 °F 30% 29.74 in 10.0 mi West 12.7 mph 19.6 mph N/A   Clear
6:54 PM 53.1 °F - 25.0 °F 34% 29.77 in 10.0 mi West 9.2 mph - N/A   Partly Cloudy
7:54 PM 53.1 °F - 18.0 °F 25% 29.78 in 10.0 mi WNW 16.1 mph 32.2 mph N/A   Scattered Clouds
8:54 PM 51.1 °F - 8.1 °F 18% 29.78 in 10.0 mi West 21.9 mph 35.7 mph N/A   Clear
9:54 PM 50.0 °F - 8.6 °F 19% 29.77 in 10.0 mi WNW 18.4 mph 41.4 mph N/A   Clear
10:54 PM 46.9 °F - 15.1 °F 28% 29.78 in 10.0 mi West 21.9 mph 33.4 mph N/A   Clear
11:54 PM 46.9 °F - 12.9 °F 25% 29.78 in 10.0 mi West 19.6 mph 41.4 mph N/A   Clear