Unionville Michigan Climate Data

Monthly Average Climate Data for Unionville Michigan

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-9.1 °C-1.7 °C42.93 mm
February-9 °C-0.2 °C39.12 mm
March-4.4 °C5.1 °C40.89 mm
April1.7 °C12.6 °C82.3 mm
May8.1 °C19.6 °C83.57 mm
June13.6 °C24.9 °C86.36 mm
July15.6 °C27.2 °C78.74 mm
August14.7 °C26 °C82.04 mm
September10.8 °C22.7 °C73.41 mm
October5 °C15.4 °C74.42 mm
November-0.3 °C7.7 °C58.67 mm
December-5.1 °C1.4 °C45.21 mm
Annual3.5 °C13.4 °C787.66 mm

Climate Data for Unionville Michigan

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
Average Days With Frost150-180 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 ConditionsSevere Drought
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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