Allegan Michigan Climate Data

Monthly Average Climate Data for Allegan Michigan

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.9 °F31.7 °F3.56 in.
February18.0 °F34.0 °F2.33 in.
March25.3 °F44.4 °F2.53 in.
April35.5 °F57.8 °F4.03 in.
May46.5 °F69.2 °F4.48 in.
June55.6 °F78.3 °F4.09 in.
July59.4 °F82.2 °F3.78 in.
August58.5 °F80.7 °F3.69 in.
September51.1 °F74.5 °F3.37 in.
October40.6 °F61.3 °F3.95 in.
November31.6 °F47.8 °F3.25 in.
December24.0 °F36.6 °F2.96 in.
Annual38.7 °F58.2 °F42.02 in.

Climate Data for Allegan Michigan

Average First Frost DateOct. 11 - Oct. 20
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 ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year