Decatur Michigan Climate Data

Monthly Average Climate Data for Decatur Michigan

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January17.2 °F31.2 °F2.86 in.
February18.6 °F34.1 °F2.15 in.
March26.3 °F44.7 °F2.36 in.
April37.0 °F57.5 °F3.5 in.
May48.3 °F69.0 °F4.15 in.
June57.3 °F78.4 °F3.95 in.
July61.0 °F82.6 °F3.75 in.
August59.6 °F80.9 °F4.03 in.
September52.0 °F74.6 °F3.45 in.
October40.9 °F61.3 °F4.02 in.
November31.8 °F47.7 °F2.98 in.
December23.4 °F36.1 °F2.59 in.
Annual39.5 °F58.2 °F39.79 in.

Climate Data for Decatur Michigan

Average First Frost DateOct. 11 - Oct. 20
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 6a : -10°F to -5°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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