Williamston Michigan Climate Data

Monthly Average Climate Data for Williamston Michigan

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.1 °C-0.9 °C57.4 mm
February-8.8 °C0.6 °C47.24 mm
March-4.2 °C6.3 °C52.83 mm
April2.1 °C13.6 °C85.09 mm
May8.3 °C20.2 °C96.01 mm
June13.6 °C25.4 °C96.52 mm
July15.3 °C27.5 °C82.04 mm
August14.5 °C26.5 °C81.53 mm
September10.3 °C23.1 °C76.96 mm
October4.3 °C15.8 °C75.44 mm
November-0.8 °C8.3 °C64.52 mm
December-5.4 °C1.9 °C51.05 mm
Annual3.3 °C14 °C866.63 mm

Climate Data for Williamston 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 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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