Ortonville Michigan Climate Data

Monthly Average Climate Data for Ortonville Michigan

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.5 °F29.7 °F2.14 in.
February16.1 °F32.7 °F1.7 in.
March24.4 °F42.7 °F2.02 in.
April35.5 °F55.8 °F3.11 in.
May47.0 °F67.9 °F3.79 in.
June56.6 °F77.2 °F3.39 in.
July60.4 °F81.1 °F3.47 in.
August59.3 °F79.3 °F3.14 in.
September52.0 °F73.2 °F2.93 in.
October40.9 °F59.8 °F2.81 in.
November31.2 °F46.7 °F2.33 in.
December22.3 °F34.9 °F2.06 in.
Annual38.4 °F56.8 °F32.89 in.

Climate Data for Ortonville Michigan

Average First Frost DateOct. 1 - Oct. 10
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 6a : -10°F to -5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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