Derry Pennsylvania Climate Data

Monthly Average Climate Data for Derry Pennsylvania

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.9 °F36.5 °F3.95 in.
February21.0 °F39.5 °F3.17 in.
March28.0 °F48.4 °F3.92 in.
April38.1 °F61.5 °F4.29 in.
May48.3 °F71.3 °F4.78 in.
June56.9 °F78.6 °F5.1 in.
July61.0 °F82.3 °F5.26 in.
August59.4 °F81.4 °F4.05 in.
September52.5 °F75.0 °F4.43 in.
October41.1 °F63.2 °F3.52 in.
November31.9 °F51.2 °F3.75 in.
December25.2 °F40.9 °F3.84 in.
Annual40.3 °F60.8 °F50.06 in.

Climate Data for Derry Pennsylvania

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 21 - May 31
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6b : -5°F to 0°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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