Johnstown Pennsylvania Climate Data

Monthly Average Climate Data for Johnstown Pennsylvania

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.7 °F36.4 °F3.66 in.
February21.2 °F39.4 °F3.34 in.
March27.9 °F47.9 °F4.07 in.
April37.8 °F62.2 °F4.28 in.
May47.8 °F72.1 °F4.28 in.
June56.1 °F79.6 °F4.61 in.
July60.0 °F83.4 °F4.47 in.
August58.5 °F82.1 °F4.37 in.
September51.9 °F75.7 °F4.34 in.
October40.7 °F64.0 °F3.53 in.
November31.7 °F51.4 °F3.57 in.
December24.7 °F40.8 °F3.86 in.
Annual39.8 °F61.3 °F48.38 in.

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 : -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