Copper Harbor Michigan Climate Data

Monthly Average Climate Data for Copper Harbor Michigan

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.9 °C-4.3 °C63.75 mm
February-10.3 °C-3.4 °C47.5 mm
March-6.6 °C1.1 °C48.01 mm
April-0.8 °C6.7 °C65.28 mm
May4.5 °C13.9 °C71.12 mm
June8.8 °C18.8 °C68.33 mm
July13.2 °C22 °C61.72 mm
August14.3 °C22.2 °C63.5 mm
September10.8 °C18.4 °C74.42 mm
October4.6 °C11.1 °C93.22 mm
November-1.3 °C4.5 °C76.96 mm
December-6.2 °C-0.9 °C81.28 mm
Annual1.8 °C9.2 °C815.09 mm

Climate Data for Copper Harbor Michigan

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 6a : -23.3°C to -20.6°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
2024 plantmaps.com