Grand Blanc Michigan Climate Data

Monthly Average Climate Data for Grand Blanc Michigan

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.2 °C-1.1 °C54.86 mm
February-8.9 °C0.4 °C42.42 mm
March-4.4 °C6.1 °C50.55 mm
April1.8 °C13.3 °C80.26 mm
May8.2 °C20 °C94.23 mm
June13.5 °C25.3 °C84.58 mm
July15.7 °C27.4 °C90.42 mm
August14.9 °C26.4 °C81.53 mm
September10.8 °C22.9 °C73.41 mm
October4.7 °C15.6 °C70.87 mm
November-0.6 °C8.2 °C58.42 mm
December-5.4 °C1.7 °C51.56 mm
Annual3.4 °C13.9 °C833.11 mm

Climate Data for Grand Blanc 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 ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year