Bay City Michigan Climate Data

Monthly Average Climate Data for Bay City Michigan

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.2 °C-1.6 °C50.55 mm
February-9 °C-0.2 °C39.37 mm
March-4.4 °C5.2 °C46.23 mm
April1.8 °C12.6 °C87.38 mm
May8.4 °C19.7 °C90.93 mm
June13.9 °C25.3 °C89.15 mm
July15.7 °C27.6 °C76.45 mm
August14.7 °C26.4 °C88.9 mm
September10.5 °C23 °C70.87 mm
October4.7 °C15.7 °C85.09 mm
November-0.4 °C7.8 °C62.74 mm
December-5.2 °C1.4 °C48.01 mm
Annual3.5 °C13.6 °C835.67 mm

Climate Data for Bay City Michigan

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6a : -23.3°C to -20.6°C
Plant Hardiness Zone - 2012Zone 6a : -23.3°C to -20.6°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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