Plymouth Indiana Climate Data

Monthly Average Climate Data for Plymouth Indiana

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.0 °F32.0 °F2.6 in.
February19.5 °F36.0 °F2.37 in.
March28.1 °F47.3 °F2.47 in.
April38.3 °F60.2 °F3.71 in.
May49.6 °F71.5 °F4.37 in.
June59.3 °F80.7 °F4.3 in.
July62.6 °F83.7 °F4.46 in.
August60.8 °F82.0 °F4.03 in.
September53.2 °F76.2 °F3.3 in.
October42.2 °F63.6 °F3.38 in.
November32.0 °F48.8 °F2.99 in.
December23.1 °F37.1 °F2.45 in.
Annual40.5 °F59.9 °F40.43 in.

Climate Data for Plymouth Indiana

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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