Mountain Iron Minnesota Climate Data

Monthly Average Climate Data for Mountain Iron Minnesota

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-19.4 °C-8.2 °C24.13 mm
February-17.8 °C-4.9 °C19.05 mm
March-10.4 °C2.3 °C27.69 mm
April-2.7 °C9.9 °C48.77 mm
May4.3 °C17.6 °C76.2 mm
June10.1 °C22.7 °C107.7 mm
July12.7 °C25.3 °C105.92 mm
August11.3 °C24.3 °C83.57 mm
September7.2 °C19.4 °C88.14 mm
October0.7 °C11.1 °C68.83 mm
November-7 °C1.5 °C38.1 mm
December-14.5 °C-5.4 °C28.96 mm
Annual-2.1 °C9.6 °C717.06 mm

Climate Data for Mountain Iron Minnesota

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateJun. 11 - Jun. 20
Average Days With FrostOver 180 Days
Plant Hardiness Zone - 2023Zone 3b : -37.2°C to -34.4°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