South Lyon Michigan Climate Data

Monthly Average Climate Data for South Lyon Michigan

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.7 °F30.7 °F2.37 in.
February16.5 °F33.7 °F1.92 in.
March24.8 °F44.2 °F2.34 in.
April35.7 °F57.0 °F3.17 in.
May47.0 °F69.1 °F3.85 in.
June56.5 °F78.0 °F3.7 in.
July60.4 °F82.0 °F3.42 in.
August59.2 °F80.2 °F3.32 in.
September51.9 °F74.0 °F3.05 in.
October40.6 °F60.9 °F2.81 in.
November30.8 °F47.6 °F2.55 in.
December22.3 °F35.8 °F2.25 in.
Annual38.5 °F57.8 °F34.75 in.

Climate Data for South Lyon Michigan

Average First Frost DateOct. 11 - Oct. 20
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 ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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