Cottage Grove Minnesota Climate Data

Monthly Average Climate Data for Cottage Grove Minnesota

Switch Data to Celsius/Metric Units
MonthAvg. LowAvg. HighAvg. Precip
January7.1 °F23.4 °F0.99 in.
February10.4 °F28.2 °F0.92 in.
March22.5 °F40.6 °F1.67 in.
April35.8 °F55.5 °F2.95 in.
May48.3 °F68.0 °F4.22 in.
June58.9 °F77.9 °F5.15 in.
July63.5 °F82.3 °F4.44 in.
August61.0 °F80.0 °F4.43 in.
September52.5 °F72.4 °F3.31 in.
October39.5 °F58.1 °F2.8 in.
November26.7 °F42.2 °F1.61 in.
December14.3 °F28.7 °F1.29 in.
Annual36.7 °F54.8 °F33.78 in.

Climate Data for Cottage Grove Minnesota

Average First Frost DateOct. 11 - Oct. 20
Average Last Frost DateMay 11 - May 20
Average Days With Frost125-150 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