Mount Gretna Pennsylvania Climate Data

Monthly Average Climate Data for Mount Gretna Pennsylvania

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January20.6 °F38.2 °F3.3 in.
February21.5 °F41.1 °F2.58 in.
March29.2 °F49.7 °F3.82 in.
April39.5 °F62.7 °F3.64 in.
May49.5 °F72.5 °F4.17 in.
June58.9 °F80.3 °F4.52 in.
July63.3 °F85.2 °F4.74 in.
August61.6 °F83.1 °F4.1 in.
September54.5 °F76.2 °F5.01 in.
October43.0 °F64.9 °F4.49 in.
November33.1 °F53.5 °F3.51 in.
December25.7 °F42.7 °F3.69 in.
Annual41.7 °F62.5 °F47.57 in.

Climate Data for Mount Gretna Pennsylvania

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 7a : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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