Charlestown Indiana Climate Data

Monthly Average Climate Data for Charlestown Indiana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January25.1 °F41.6 °F3.51 in.
February27.7 °F46.3 °F3.31 in.
March35.2 °F56.3 °F4.48 in.
April45.2 °F68.0 °F4.98 in.
May55.7 °F76.8 °F5.14 in.
June64.0 °F84.4 °F5.12 in.
July67.5 °F87.4 °F4.24 in.
August66.0 °F86.9 °F3.69 in.
September58.4 °F80.8 °F3.59 in.
October46.7 °F69.8 °F3.67 in.
November36.4 °F56.4 °F3.66 in.
December29.3 °F45.7 °F4.28 in.
Annual46.4 °F66.7 °F49.67 in.

Climate Data for Charlestown Indiana

Average First Frost DateOct. 21 - Oct. 31
Average Last Frost DateApr. 21 - Apr. 30
Average Days With Frost75-100 Days
Plant Hardiness Zone - 2023Zone 7a : 0°F to 5°F
Plant Hardiness Zone - 2012Zone 6b : -5°F to 0°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation