Afton Minnesota Climate Data

Monthly Average Climate Data for Afton Minnesota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January7.2 °F23.9 °F0.96 in.
February10.5 °F28.8 °F0.86 in.
March22.6 °F41.2 °F1.66 in.
April35.8 °F55.9 °F3.03 in.
May48.3 °F68.3 °F4.28 in.
June58.7 °F78.5 °F5.31 in.
July63.3 °F82.8 °F4.47 in.
August60.7 °F80.5 °F4.51 in.
September52.4 °F72.9 °F3.46 in.
October39.5 °F58.7 °F2.83 in.
November26.8 °F42.7 °F1.61 in.
December14.4 °F29.1 °F1.3 in.
Annual36.7 °F55.3 °F34.28 in.

Climate Data for Afton 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 ClassificationDfb - Humid Continental Mild Summer, Wet All Year