Grand Marais Michigan Climate Data

Monthly Average Climate Data for Grand Marais Michigan

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January11.0 °F25.0 °F2.41 in.
February10.7 °F27.4 °F1.66 in.
March17.2 °F36.5 °F1.92 in.
April27.9 °F48.2 °F2.7 in.
May38.4 °F61.4 °F2.56 in.
June47.9 °F71.2 °F2.95 in.
July52.9 °F75.4 °F2.93 in.
August54.2 °F76.0 °F2.28 in.
September48.8 °F68.8 °F3.55 in.
October37.7 °F54.9 °F4.17 in.
November27.9 °F41.3 °F2.9 in.
December17.8 °F31.1 °F2.56 in.
Annual32.7 °F51.4 °F32.59 in.

Climate Data for Grand Marais Michigan

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsModerate Drought
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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