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Williamsport

The tables below display average monthly climate and weather indicators in Williamsport Pennsylvania.

Temperature by: Fahrenheit / Centigrade

Williamsport Temperature Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Avg. Temperature 25.2 28.0 38.1 49.1 59.5 67.8 72.3 70.8 63.5 52.0 41.8 30.9 49.9
Avg. Max Temperature 33.3 36.6 47.7 60.1 71.1 79.0 83.1 81.2 73.8 62.4 49.9 37.9 59.7
Avg. Min Temperature 17.1 19.2 28.5 38.1 47.9 56.6 61.5 60.5 53.1 41.6 33.6 23.9 40.1
Days with Max Temp of 90 F or Higher 0.0 0.0 0.0 < 0.5 1.0 3.0 6.0 3.0 1.0 < 0.5 0.0 0.0 13.0
Days with Min Temp Below Freezing 28.0 25.0 21.0 8.0 1.0 0.0 0.0 0.0 < 0.5 5.0 15.0 25.0 128
  
Williamsport Heating and Cooling Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Heating Degree Days 1234 1036 834 477 200 30.0 0.0 9.0 106 408 696 1057 6087
Cooling Degree Days 0.0 0.0 0.0 0.0 29.0 114 229 189 61.0 0.0 0.0 0.0 622
  
Williamsport Precipitation Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Precipitation (inches) 2.5 2.8 3.2 3.2 3.9 4.3 4.0 3.4 3.4 3.3 3.7 3.0 40.7
Days with Precipitation 0.01 inch or More 12.0 11.0 13.0 13.0 13.0 12.0 11.0 11.0 10.0 10.0 12.0 12.0 140
Monthly Snowfall (inches) 11.0 10.0 8.2 1.2 0.0 < 0.05 < 0.05 < 0.05 0.0 0.1 3.0 8.3 41.8
  
Other Williamsport Weather Indicators Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Annual
Average Wind Speed 8.9 8.8 9.1 9.1 7.8 6.9 6.4 5.9 6.1 6.7 8.0 8.4 7.7
Clear Days 5.0 5.0 6.0 6.0 5.0 6.0 6.0 6.0 6.0 7.0 4.0 4.0 67.0
Partly Cloudy Days 7.0 7.0 8.0 8.0 10.0 12.0 13.0 13.0 11.0 9.0 7.0 7.0 110
Cloudy Days 19.0 16.0 17.0 16.0 15.0 12.0 12.0 12.0 14.0 15.0 19.0 20.0 188
Avg. Relative Humidity 65.0 69.0 67.5 64.5 64.5 67.5 70.5 72.5 74.5 73.5 69.5 69.5 72.5

Weather information for other cities in Pennsylvania
• Allentown Weather
• Avoca Weather
• Erie Weather
• Harrisburg Weather
• Middletown / Harrisburg Weather
• Philadelphia Weather
• Pittsburgh Weather

 


 

Portions of this site are based on the CIA World Fact Book, a public-domain work
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