Greencastle Indiana Climate Data

Monthly Average Climate Data for Greencastle Indiana

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-7.2 °C1.7 °C82.04 mm
February-5.8 °C4.2 °C67.06 mm
March-0.7 °C10.2 °C85.85 mm
April4.8 °C16.7 °C120.14 mm
May10.8 °C22.3 °C126.49 mm
June15.9 °C27 °C135.38 mm
July17.4 °C28.4 °C119.13 mm
August16.1 °C27.9 °C79.25 mm
September12.2 °C24.9 °C93.22 mm
October5.8 °C18.1 °C90.17 mm
November0.2 °C10.6 °C93.22 mm
December-4.4 °C4.1 °C76.71 mm
Annual5.4 °C16.3 °C1168.66 mm

Climate Data for Greencastle Indiana

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6a : -23.3°C to -20.6°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