Isle Minnesota Climate Data

Monthly Average Climate Data for Isle Minnesota

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-18 °C-7 °C16.26 mm
February-16.1 °C-3.8 °C19.81 mm
March-8.9 °C3 °C37.85 mm
April-1.1 °C10.8 °C66.55 mm
May5.8 °C18.2 °C92.2 mm
June11.5 °C23.4 °C116.08 mm
July13.9 °C25.9 °C113.28 mm
August12.6 °C24.8 °C100.33 mm
September8.2 °C20.3 °C76.96 mm
October1.7 °C12.3 °C77.72 mm
November-5.3 °C3.4 °C38.35 mm
December-12.8 °C-3.9 °C26.42 mm
Annual-0.7 °C10.6 °C781.81 mm

Climate Data for Isle Minnesota

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateMay 21 - May 31
Average Days With Frost150-180 Days
Plant Hardiness Zone - 2023Zone 4a : -34.4°C to -31.7°C
Plant Hardiness Zone - 2012Zone 3b : -37.2°C to -34.4°C
Current Drought ConditionsNormal
Köppen Climate ClassificationDfb - Humid Continental Mild Summer, Wet All Year