Ionia Michigan Climate Data

Monthly Average Climate Data for Ionia Michigan

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January16.6 °F30.1 °F2.38 in.
February17.3 °F33.0 °F2.13 in.
March25.0 °F43.5 °F2.29 in.
April35.3 °F57.1 °F3.7 in.
May47.0 °F68.9 °F4.15 in.
June57.1 °F78.4 °F3.56 in.
July60.8 °F82.3 °F3.39 in.
August59.2 °F80.2 °F3.62 in.
September50.9 °F73.0 °F3.05 in.
October40.4 °F60.4 °F3.32 in.
November31.2 °F46.7 °F2.87 in.
December23.0 °F35.3 °F2.2 in.
Annual38.7 °F57.4 °F36.66 in.

Climate Data for Ionia Michigan

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
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