Merrillan Wisconsin Climate Data

Monthly Average Climate Data for Merrillan Wisconsin

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January4.7 °F24.5 °F1.19 in.
February7.8 °F29.6 °F1.12 in.
March19.6 °F41.8 °F1.81 in.
April31.7 °F56.2 °F3.43 in.
May43.6 °F68.9 °F4.42 in.
June53.8 °F77.9 °F5.18 in.
July57.6 °F81.8 °F4.11 in.
August55.6 °F79.8 °F4.34 in.
September47.1 °F72.5 °F3.81 in.
October35.6 °F59.0 °F2.96 in.
November24.1 °F42.8 °F1.89 in.
December12.4 °F29.7 °F1.51 in.
Annual32.8 °F55.4 °F35.77 in.

Climate Data for Merrillan Wisconsin

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 4b : -25°F to -20°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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