Thorntown Indiana Climate Data

Monthly Average Climate Data for Thorntown Indiana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January18.9 °F34.4 °F2.83 in.
February21.5 °F38.5 °F2.23 in.
March30.4 °F49.5 °F3.0 in.
April41.0 °F62.5 °F4.22 in.
May52.2 °F73.0 °F4.41 in.
June61.0 °F81.2 °F5.06 in.
July64.0 °F84.1 °F4.51 in.
August62.0 °F82.9 °F3.49 in.
September54.4 °F78.1 °F3.11 in.
October43.1 °F65.8 °F3.17 in.
November32.9 °F51.0 °F3.28 in.
December24.2 °F39.2 °F2.8 in.
Annual42.1 °F61.7 °F42.11 in.

Climate Data for Thorntown Indiana

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 1 - May 10
Average Days With Frost100-125 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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