Mason Wisconsin Climate Data

Monthly Average Climate Data for Mason Wisconsin

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January3.5 °F21.7 °F1.25 in.
February5.9 °F26.6 °F1.06 in.
March16.7 °F37.8 °F1.64 in.
April29.0 °F50.1 °F2.86 in.
May40.0 °F64.1 °F3.74 in.
June50.3 °F73.5 °F4.07 in.
July55.8 °F78.4 °F4.36 in.
August54.2 °F76.9 °F3.64 in.
September47.0 °F69.2 °F3.57 in.
October35.2 °F54.8 °F3.27 in.
November24.0 °F39.9 °F1.87 in.
December11.7 °F26.9 °F1.55 in.
Annual31.1 °F51.7 °F32.88 in.

Climate Data for Mason Wisconsin

Average First Frost DateSep.11 - Sep. 20
Average Last Frost DateJun. 11 - Jun. 20
Average Days With FrostOver 180 Days
Plant Hardiness Zone - 2023Zone 4b : -25°F to -20°F
Plant Hardiness Zone - 2012Zone 3b : -35°F to -30°F
Current Drought ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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