Roscommon Michigan Climate Data

Monthly Average Climate Data for Roscommon Michigan

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January9.7 °F26.9 °F2.26 in.
February8.9 °F30.0 °F1.62 in.
March16.5 °F40.2 °F1.94 in.
April28.7 °F53.2 °F3.21 in.
May40.8 °F66.7 °F3.47 in.
June50.3 °F76.5 °F3.53 in.
July54.4 °F80.4 °F3.08 in.
August52.6 °F78.5 °F3.27 in.
September44.8 °F71.0 °F3.07 in.
October35.1 °F56.9 °F3.62 in.
November26.2 °F43.1 °F2.71 in.
December17.8 °F32.0 °F2.22 in.
Annual32.2 °F54.6 °F34 in.

Climate Data for Roscommon Michigan

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateJun. 1 - Jun. 10
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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