Janesville Minnesota Climate Data

Monthly Average Climate Data for Janesville Minnesota

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-14.6 °C-5 °C22.35 mm
February-12.4 °C-2.4 °C22.86 mm
March-5.3 °C4.5 °C44.7 mm
April1.5 °C13.2 °C78.23 mm
May8.4 °C20.1 °C109.98 mm
June14.6 °C25.7 °C134.37 mm
July16.4 °C27.4 °C117.6 mm
August15 °C26.2 °C115.06 mm
September10.3 °C22.8 °C96.27 mm
October3.1 °C15.1 °C65.02 mm
November-3.9 °C5.8 °C39.37 mm
December-10.5 °C-1.9 °C28.7 mm
Annual1.9 °C12.6 °C874.51 mm

Climate Data for Janesville Minnesota

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 11 - May 20
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 5a : -28.9°C to -26.1°C
Plant Hardiness Zone - 2012Zone 4b : -31.7°C to -28.9°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
2024 plantmaps.com