Sister Bay Wisconsin Climate Data

Monthly Average Climate Data for Sister Bay Wisconsin

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January12.8 °F26.1 °F1.76 in.
February13.1 °F28.4 °F1.0 in.
March21.9 °F38.0 °F1.67 in.
April32.6 °F49.3 °F2.8 in.
May43.6 °F62.1 °F3.44 in.
June53.9 °F72.2 °F3.32 in.
July59.5 °F77.3 °F2.94 in.
August59.8 °F76.2 °F3.18 in.
September52.4 °F68.6 °F3.36 in.
October42.1 °F56.0 °F3.41 in.
November31.4 °F43.0 °F2.29 in.
December21.1 °F32.1 °F1.68 in.
Annual37 °F52.4 °F30.85 in.

Climate Data for Sister Bay Wisconsin

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5b : -15°F to -10°F
Plant Hardiness Zone - 2012Zone 5b : -15°F to -10°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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