Merrimac Wisconsin Climate Data

Monthly Average Climate Data for Merrimac Wisconsin

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-12.4 °C-2.7 °C34.54 mm
February-10.9 °C-0.2 °C34.8 mm
March-5.1 °C6.4 °C52.83 mm
April1.5 °C13.9 °C99.82 mm
May8.3 °C20.8 °C110.49 mm
June14.1 °C26.1 °C137.92 mm
July16.2 °C28.2 °C111.76 mm
August14.9 °C27.1 °C108.97 mm
September10.3 °C22.9 °C90.93 mm
October3.8 °C15.7 °C71.63 mm
November-2.4 °C7.2 °C52.32 mm
December-8.4 °C0.3 °C41.66 mm
Annual2.5 °C13.8 °C947.67 mm

Climate Data for Merrimac Wisconsin

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5a : -28.9°C to -26.1°C
Plant Hardiness Zone - 2012Zone 5a : -28.9°C to -26.1°C
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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