Mankato Minnesota Climate Data

Monthly Average Climate Data for Mankato Minnesota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January5.4 °F23.0 °F0.93 in.
February9.9 °F28.4 °F0.96 in.
March22.5 °F40.9 °F1.79 in.
April35.1 °F57.1 °F3.07 in.
May47.4 °F69.2 °F4.22 in.
June58.1 °F79.1 °F5.33 in.
July62.2 °F82.4 °F4.17 in.
August59.6 °F80.5 °F4.09 in.
September50.8 °F74.0 °F3.46 in.
October38.3 °F59.9 °F2.52 in.
November24.7 °F42.5 °F1.56 in.
December13.0 °F29.0 °F1.16 in.
Annual35.6 °F55.5 °F33.26 in.

Climate Data for Mankato 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 : -20°F to -15°F
Plant Hardiness Zone - 2012Zone 4b : -25°F to -20°F
Current Drought ConditionsNormal
Köppen Climate ClassificationDfa - Humid Continental Hot Summers With Year Around Precipitation