Brillion Wisconsin Climate Data

Monthly Average Climate Data for Brillion Wisconsin

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-12.1 °C-3.7 °C35.05 mm
February-11 °C-1.8 °C27.43 mm
March-5.3 °C4.6 °C43.18 mm
April1.2 °C12.1 °C76.45 mm
May7.7 °C19.2 °C93.47 mm
June13.4 °C24.6 °C116.59 mm
July15.7 °C27.1 °C95.76 mm
August14.7 °C26.1 °C86.36 mm
September10.4 °C22.3 °C80.26 mm
October4 °C14.4 °C72.9 mm
November-2 °C6.6 °C49.02 mm
December-8.3 °C-0.6 °C40.13 mm
Annual2.4 °C12.6 °C816.6 mm

Climate Data for Brillion Wisconsin

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 21 - May 31
Average Days With Frost125-150 Days
Plant Hardiness Zone - 2023Zone 5b : -26.1°C to -23.3°C
Plant Hardiness Zone - 2012Zone 5a : -28.9°C to -26.1°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year
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