Jonestown Pennsylvania Climate Data

Monthly Average Climate Data for Jonestown Pennsylvania

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January21.0 °F37.2 °F3.25 in.
February22.3 °F40.1 °F2.55 in.
March30.0 °F49.1 °F3.83 in.
April40.4 °F62.1 °F3.8 in.
May50.4 °F72.0 °F3.88 in.
June59.7 °F80.8 °F4.61 in.
July64.0 °F85.4 °F4.62 in.
August62.3 °F83.4 °F4.19 in.
September55.1 °F76.7 °F4.85 in.
October43.6 °F64.6 °F4.25 in.
November33.7 °F52.8 °F3.3 in.
December26.3 °F41.9 °F3.7 in.
Annual42.4 °F62.2 °F46.83 in.
MonthAvg. LowAvg. HighAvg. Precip
January18.9 °F35.9 °F3.2 in.
February20.4 °F38.6 °F2.43 in.
March27.6 °F47.3 °F3.28 in.
April37.8 °F61.2 °F3.95 in.
May48.1 °F72.1 °F4.17 in.
June57.3 °F79.8 °F4.66 in.
July61.5 °F84.3 °F4.7 in.
August60.0 °F82.5 °F4.47 in.
September52.8 °F75.7 °F4.83 in.
October41.5 °F63.7 °F4.05 in.
November32.4 °F51.2 °F3.16 in.
December25.0 °F40.7 °F3.41 in.
Annual40.3 °F61.1 °F46.31 in.

Climate Data for Jonestown Pennsylvania

Average First Frost DateOct. 21 - Oct. 31
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
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 ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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