Chester Pennsylvania Climate Data

Monthly Average Climate Data for Chester Pennsylvania

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-2.7 °C4.9 °C89.92 mm
February-2 °C6.3 °C72.39 mm
March1.7 °C10.7 °C108.71 mm
April7.5 °C17.4 °C89.92 mm
May13 °C22.6 °C92.71 mm
June18.3 °C27.8 °C111.51 mm
July21.3 °C30.2 °C117.09 mm
August20.4 °C29.3 °C110.49 mm
September16.6 °C25.7 °C103.38 mm
October10.1 °C19.1 °C92.96 mm
November4.4 °C13.1 °C72.64 mm
December0.3 °C7.7 °C98.81 mm
Annual9.1 °C17.9 °C1160.53 mm

Climate Data for Chester Pennsylvania

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 11 - Apr. 20
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 8a : -12.2°C to -9.4°C
Plant Hardiness Zone - 2012Zone 7b : -15°C to -12.2°C
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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