Howell Michigan Climate Data

Monthly Average Climate Data for Howell Michigan

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January15.6 °F30.5 °F2.18 in.
February16.3 °F33.4 °F1.66 in.
March24.4 °F43.7 °F2.01 in.
April35.7 °F57.0 °F3.16 in.
May46.9 °F69.0 °F3.65 in.
June56.4 °F78.4 °F3.69 in.
July59.8 °F82.4 °F3.18 in.
August58.7 °F80.6 °F3.38 in.
September51.3 °F74.2 °F3.17 in.
October40.3 °F61.1 °F2.77 in.
November30.7 °F47.3 °F2.43 in.
December22.1 °F35.6 °F2.02 in.
Annual38.2 °F57.8 °F33.3 in.

Climate Data for Howell Michigan

Average First Frost DateOct. 1 - Oct. 10
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 ClassificationDfb - Humid Continental Mild Summer, Wet All Year