Johnstown Pennsylvania Climate Data

Monthly Average Climate Data for Johnstown Pennsylvania

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-6.8 °C2.4 °C92.96 mm
February-6 °C4.1 °C84.84 mm
March-2.3 °C8.8 °C103.38 mm
April3.2 °C16.8 °C108.71 mm
May8.8 °C22.3 °C108.71 mm
June13.4 °C26.4 °C117.09 mm
July15.6 °C28.6 °C113.54 mm
August14.7 °C27.8 °C111 mm
September11.1 °C24.3 °C110.24 mm
October4.8 °C17.8 °C89.66 mm
November-0.2 °C10.8 °C90.68 mm
December-4.1 °C4.9 °C98.04 mm
Annual4.4 °C16.3 °C1228.85 mm

Climate Data for Johnstown Pennsylvania

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6b : -20.6°C to -17.8°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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