Williamston Michigan Climate Data

Monthly Average Climate Data for Williamston Michigan

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.6 °F30.3 °F2.26 in.
February16.1 °F33.0 °F1.86 in.
March24.5 °F43.4 °F2.08 in.
April35.7 °F56.4 °F3.35 in.
May47.0 °F68.4 °F3.78 in.
June56.4 °F77.8 °F3.8 in.
July59.5 °F81.5 °F3.23 in.
August58.1 °F79.7 °F3.21 in.
September50.6 °F73.6 °F3.03 in.
October39.7 °F60.4 °F2.97 in.
November30.5 °F47.0 °F2.54 in.
December22.3 °F35.4 °F2.01 in.
Annual38 °F57.2 °F34.12 in.

Climate Data for Williamston Michigan

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 6a : -10°F to -5°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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