Duncannon Pennsylvania Climate Data

Monthly Average Climate Data for Duncannon Pennsylvania

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-5.8 °C3 °C81.28 mm
February-5.2 °C4.7 °C66.04 mm
March-1.1 °C9.7 °C94.74 mm
April4.7 °C16.9 °C93.98 mm
May10.3 °C22.3 °C105.92 mm
June15.4 °C27.2 °C106.17 mm
July17.8 °C29.7 °C110.24 mm
August16.9 °C28.7 °C103.12 mm
September12.9 °C24.8 °C119.13 mm
October6.6 °C18 °C103.38 mm
November1.2 °C11.6 °C80.77 mm
December-3 °C5.4 °C89.41 mm
Annual5.9 °C16.8 °C1154.18 mm

Climate Data for Duncannon Pennsylvania

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateMay 1 - May 10
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 ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
2024 plantmaps.com