Chester Pennsylvania Climate Data

Monthly Average Climate Data for Chester Pennsylvania

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January27.2 °F40.9 °F3.54 in.
February28.4 °F43.4 °F2.85 in.
March35.1 °F51.2 °F4.28 in.
April45.5 °F63.3 °F3.54 in.
May55.4 °F72.7 °F3.65 in.
June64.9 °F82.0 °F4.39 in.
July70.3 °F86.3 °F4.61 in.
August68.7 °F84.7 °F4.35 in.
September61.9 °F78.3 °F4.07 in.
October50.2 °F66.4 °F3.66 in.
November40.0 °F55.6 °F2.86 in.
December32.6 °F45.9 °F3.89 in.
Annual48.4 °F64.2 °F45.69 in.

Climate Data for Chester Pennsylvania

Average First Frost DateNov. 1 - Nov. 10
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 8a : 10°F to 15°F
Plant Hardiness Zone - 2012Zone 7b : 5°F to 10°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation