Williams Bay Wisconsin Climate Data

Monthly Average Climate Data for Williams Bay Wisconsin

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January13.2 °F28.7 °F1.82 in.
February15.9 °F32.7 °F1.79 in.
March25.3 °F44.3 °F2.2 in.
April35.6 °F57.4 °F3.77 in.
May47.3 °F69.0 °F4.34 in.
June56.8 °F78.7 °F5.51 in.
July61.2 °F82.5 °F3.64 in.
August59.4 °F81.0 °F4.07 in.
September51.5 °F74.4 °F3.61 in.
October40.2 °F61.2 °F2.97 in.
November29.5 °F46.4 °F2.37 in.
December19.1 °F33.9 °F2.04 in.
Annual37.9 °F57.5 °F38.13 in.

Climate Data for Williams Bay Wisconsin

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
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