Mahnomen Minnesota Climate Data

Monthly Average Climate Data for Mahnomen Minnesota

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-18.6 °C-8.7 °C21.84 mm
February-17.1 °C-6.1 °C17.78 mm
March-8.9 °C1.3 °C25.91 mm
April-0.9 °C10.7 °C38.86 mm
May5.9 °C18.7 °C76.2 mm
June12.2 °C23.7 °C116.33 mm
July14.4 °C26.1 °C90.17 mm
August12.9 °C25.7 °C74.17 mm
September8.1 °C20.8 °C74.93 mm
October1.3 °C12.1 °C59.94 mm
November-6.7 °C2.4 °C24.13 mm
December-14.4 °C-5.3 °C25.65 mm
Annual-1 °C10.1 °C645.91 mm

Climate Data for Mahnomen Minnesota

Average First Frost DateSep. 21 - Sep. 30
Average Last Frost DateJun. 1 - Jun. 10
Average Days With FrostOver 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