Jonestown Pennsylvania Climate Data

Monthly Average Climate Data for Jonestown Pennsylvania

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-6.1 °C2.9 °C82.55 mm
February-5.4 °C4.5 °C64.77 mm
March-1.1 °C9.5 °C97.28 mm
April4.7 °C16.7 °C96.52 mm
May10.2 °C22.2 °C98.55 mm
June15.4 °C27.1 °C117.09 mm
July17.8 °C29.7 °C117.35 mm
August16.8 °C28.6 °C106.43 mm
September12.8 °C24.8 °C123.19 mm
October6.4 °C18.1 °C107.95 mm
November0.9 °C11.6 °C83.82 mm
December-3.2 °C5.5 °C93.98 mm
Annual5.8 °C16.8 °C1189.48 mm
MonthAvg. LowAvg. HighAvg. Precip
January-7.3 °C2.2 °C81.28 mm
February-6.4 °C3.7 °C61.72 mm
March-2.4 °C8.5 °C83.31 mm
April3.2 °C16.2 °C100.33 mm
May8.9 °C22.3 °C105.92 mm
June14.1 °C26.6 °C118.36 mm
July16.4 °C29.1 °C119.38 mm
August15.6 °C28.1 °C113.54 mm
September11.6 °C24.3 °C122.68 mm
October5.3 °C17.6 °C102.87 mm
November0.2 °C10.7 °C80.26 mm
December-3.9 °C4.8 °C86.61 mm
Annual4.6 °C16.2 °C1176.26 mm

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 : -17.8°C to -15°C
Plant Hardiness Zone - 2012Zone 6b : -20.6°C to -17.8°C
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 : -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 ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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