Merton Wisconsin Climate Data

Monthly Average Climate Data for Merton Wisconsin

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January11.2 °F27.2 °F1.81 in.
February14.0 °F30.8 °F1.68 in.
March23.6 °F42.2 °F2.13 in.
April34.6 °F55.3 °F3.87 in.
May45.5 °F67.0 °F4.11 in.
June55.2 °F76.4 °F4.65 in.
July60.4 °F81.3 °F4.19 in.
August58.6 °F79.3 °F3.71 in.
September50.6 °F72.4 °F3.19 in.
October39.5 °F59.4 °F2.94 in.
November28.3 °F45.0 °F2.17 in.
December17.9 °F32.6 °F2.05 in.
Annual36.6 °F55.7 °F36.5 in.

Climate Data for Merton Wisconsin

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsSevere Drought
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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