Mackinac Island Michigan Climate Data

Monthly Average Climate Data for Mackinac Island Michigan

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January12.0 °F24.9 °F1.93 in.
February11.4 °F26.3 °F1.32 in.
March19.0 °F34.7 °F1.68 in.
April30.8 °F46.3 °F2.66 in.
May41.5 °F58.5 °F2.83 in.
June51.9 °F69.0 °F2.94 in.
July58.6 °F74.8 °F2.9 in.
August58.5 °F74.2 °F3.12 in.
September52.0 °F67.2 °F3.42 in.
October40.8 °F54.2 °F4.18 in.
November31.3 °F41.7 °F2.63 in.
December21.1 °F31.7 °F2.28 in.
Annual35.7 °F50.3 °F31.89 in.

Climate Data for Mackinac Island Michigan

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year