Cottage Grove Minnesota Climate Data

Monthly Average Climate Data for Cottage Grove Minnesota

Switch Data to Fahrenheit
MonthAvg. LowAvg. HighAvg. Precip
January-13.8 °C-4.8 °C25.15 mm
February-12 °C-2.1 °C23.37 mm
March-5.3 °C4.8 °C42.42 mm
April2.1 °C13.1 °C74.93 mm
May9.1 °C20 °C107.19 mm
June14.9 °C25.5 °C130.81 mm
July17.5 °C27.9 °C112.78 mm
August16.1 °C26.7 °C112.52 mm
September11.4 °C22.4 °C84.07 mm
October4.2 °C14.5 °C71.12 mm
November-2.9 °C5.7 °C40.89 mm
December-9.8 °C-1.8 °C32.77 mm
Annual2.6 °C12.7 °C858.02 mm

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 : -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 ClassificationDfb - Humid Continental Mild Summer, Wet All Year