Grand Marais Michigan Climate Data

Monthly Average Climate Data for Grand Marais Michigan

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-11.7 °C-3.9 °C61.21 mm
February-11.8 °C-2.6 °C42.16 mm
March-8.2 °C2.5 °C48.77 mm
April-2.3 °C9 °C68.58 mm
May3.6 °C16.3 °C65.02 mm
June8.8 °C21.8 °C74.93 mm
July11.6 °C24.1 °C74.42 mm
August12.3 °C24.4 °C57.91 mm
September9.3 °C20.4 °C90.17 mm
October3.2 °C12.7 °C105.92 mm
November-2.3 °C5.2 °C73.66 mm
December-7.9 °C-0.5 °C65.02 mm
Annual0.4 °C10.8 °C827.77 mm

Climate Data for Grand Marais Michigan

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5b : -26.1°C to -23.3°C
Plant Hardiness Zone - 2012Zone 5b : -26.1°C to -23.3°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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