West Chester Pennsylvania Climate Data

Monthly Average Climate Data for West Chester Pennsylvania

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January22.2 °F39.3 °F3.58 in.
February23.0 °F41.6 °F2.93 in.
March30.4 °F50.2 °F4.36 in.
April40.9 °F62.5 °F3.79 in.
May50.8 °F72.0 °F3.91 in.
June59.7 °F80.7 °F4.46 in.
July65.0 °F85.0 °F4.47 in.
August63.4 °F83.8 °F4.39 in.
September55.9 °F77.3 °F5.04 in.
October44.2 °F65.4 °F4.45 in.
November34.8 °F53.8 °F3.32 in.
December27.6 °F43.7 °F4.32 in.
Annual43.2 °F62.9 °F49.02 in.

Climate Data for West Chester Pennsylvania

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7a : 0°F to 5°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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