Mankato Minnesota Climate Data

Monthly Average Climate Data for Mankato Minnesota

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-14.8 °C-5 °C23.62 mm
February-12.3 °C-2 °C24.38 mm
March-5.3 °C4.9 °C45.47 mm
April1.7 °C13.9 °C77.98 mm
May8.6 °C20.7 °C107.19 mm
June14.5 °C26.2 °C135.38 mm
July16.8 °C28 °C105.92 mm
August15.3 °C26.9 °C103.89 mm
September10.4 °C23.3 °C87.88 mm
October3.5 °C15.5 °C64.01 mm
November-4.1 °C5.8 °C39.62 mm
December-10.6 °C-1.7 °C29.46 mm
Annual2 °C13 °C844.8 mm

Climate Data for Mankato Minnesota

Average First Frost DateOct. 1 - Oct. 10
Average Last Frost DateMay 1 - May 10
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 ConditionsAbnormally Dry
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation
2024 plantmaps.com