Brillion Wisconsin Climate Data

Monthly Average Climate Data for Brillion Wisconsin

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January10.3 °F25.4 °F1.38 in.
February12.2 °F28.8 °F1.08 in.
March22.5 °F40.2 °F1.7 in.
April34.1 °F53.7 °F3.01 in.
May45.8 °F66.6 °F3.68 in.
June56.2 °F76.2 °F4.59 in.
July60.3 °F80.7 °F3.77 in.
August58.5 °F78.9 °F3.4 in.
September50.7 °F72.1 °F3.16 in.
October39.2 °F58.0 °F2.87 in.
November28.4 °F43.9 °F1.93 in.
December17.1 °F31.0 °F1.58 in.
Annual36.3 °F54.6 °F32.15 in.

Climate Data for Brillion 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 ConditionsAbnormally Dry
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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