Philadelphia Pennsylvania Climate Data

Monthly Average Climate Data for Philadelphia Pennsylvania

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January27.2 °F41.6 °F3.49 in.
February28.7 °F44.4 °F2.8 in.
March35.2 °F52.3 °F4.33 in.
April45.3 °F64.3 °F3.56 in.
May54.9 °F73.5 °F3.84 in.
June64.4 °F82.8 °F4.25 in.
July70.0 °F87.4 °F4.58 in.
August68.4 °F85.6 °F4.8 in.
September61.8 °F79.1 °F4.13 in.
October50.1 °F67.0 °F3.81 in.
November39.9 °F56.2 °F3.04 in.
December32.6 °F46.3 °F4.25 in.
Annual48.2 °F65 °F46.88 in.

Climate Data for Philadelphia 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 7b : 5°F to 10°F
Plant Hardiness Zone - 2012Zone 7b : 5°F to 10°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationCfa - Humid Subtropical Climate