Greencastle Indiana Climate Data

Monthly Average Climate Data for Greencastle Indiana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January19.0 °F35.0 °F3.23 in.
February21.6 °F39.6 °F2.64 in.
March30.7 °F50.4 °F3.38 in.
April40.7 °F62.0 °F4.73 in.
May51.5 °F72.1 °F4.98 in.
June60.6 °F80.6 °F5.33 in.
July63.3 °F83.2 °F4.69 in.
August61.0 °F82.2 °F3.12 in.
September54.0 °F76.9 °F3.67 in.
October42.5 °F64.6 °F3.55 in.
November32.4 °F51.0 °F3.67 in.
December24.0 °F39.3 °F3.02 in.
Annual41.8 °F61.4 °F46.01 in.

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 : -10°F to -5°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