Merrill Michigan Climate Data

Monthly Average Climate Data for Merrill Michigan

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January14.8 °F29.8 °F2.14 in.
February14.9 °F32.2 °F1.75 in.
March23.3 °F42.7 °F1.98 in.
April34.4 °F56.1 °F3.44 in.
May46.4 °F68.8 °F3.66 in.
June56.2 °F78.5 °F3.52 in.
July59.4 °F82.5 °F3.13 in.
August57.4 °F80.4 °F3.49 in.
September49.5 °F74.1 °F2.77 in.
October39.3 °F60.9 °F3.17 in.
November30.1 °F46.8 °F2.51 in.
December21.6 °F35.1 °F2.02 in.
Annual37.3 °F57.3 °F33.58 in.

Climate Data for Merrill 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 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year