Grand Blanc Michigan Climate Data

Monthly Average Climate Data for Grand Blanc Michigan

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.4 °F30.0 °F2.16 in.
February15.9 °F32.8 °F1.67 in.
March24.0 °F42.9 °F1.99 in.
April35.3 °F55.9 °F3.16 in.
May46.8 °F68.0 °F3.71 in.
June56.3 °F77.5 °F3.33 in.
July60.2 °F81.4 °F3.56 in.
August58.9 °F79.5 °F3.21 in.
September51.4 °F73.3 °F2.89 in.
October40.5 °F60.0 °F2.79 in.
November30.9 °F46.8 °F2.3 in.
December22.2 °F35.1 °F2.03 in.
Annual38.2 °F56.9 °F32.8 in.

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 : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 6a : -10°F to -5°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year