Williamsport Pennsylvania Climate Data

Monthly Average Climate Data for Williamsport Pennsylvania

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.1 °F35.5 °F3.08 in.
February20.2 °F38.7 °F2.33 in.
March27.6 °F48.1 °F3.23 in.
April38.0 °F61.6 °F3.57 in.
May48.3 °F72.6 °F4.05 in.
June57.4 °F80.7 °F4.0 in.
July61.8 °F85.0 °F4.38 in.
August60.4 °F83.2 °F3.99 in.
September53.0 °F76.1 °F4.63 in.
October41.8 °F63.7 °F3.96 in.
November32.4 °F51.2 °F2.76 in.
December25.2 °F40.1 °F3.34 in.
Annual40.4 °F61.4 °F43.32 in.

Climate Data for Williamsport Pennsylvania

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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