Monticello Wisconsin Climate Data

Monthly Average Climate Data for Monticello Wisconsin

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January11.0 °F27.7 °F1.5 in.
February14.1 °F31.8 °F1.59 in.
March24.7 °F43.9 °F2.07 in.
April35.8 °F57.8 °F3.8 in.
May47.5 °F69.6 °F4.27 in.
June57.7 °F79.5 °F5.65 in.
July61.6 °F82.9 °F4.18 in.
August59.6 °F81.2 °F4.3 in.
September51.0 °F74.1 °F3.79 in.
October39.6 °F61.2 °F2.96 in.
November28.5 °F45.8 °F2.26 in.
December18.0 °F33.2 °F1.77 in.
Annual37.4 °F57.4 °F38.14 in.

Climate Data for Monticello 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 5a : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 5a : -20°F to -15°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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