Cottage Grove, Minnesota, experiences a Humid Continental Mild Summer climate, characterized by warm summers and cold winters. The average annual high temperature is approximately 54.8°F, with lows averaging around 36.7°F. Residents can expect about 33.8 inches of precipitation each year. The growing season typically spans from late April to mid-October, offering ample time for gardening and outdoor activities.
Environmental Protection Efforts
Protecting natural resources is a priority for Cottage Grove. The city collaborates with the South Washington Watershed District to safeguard local ponds, wetlands, and the Mississippi River. Public education plays a significant role in these efforts, with the city publishing environmentally-focused supplements in the Cottage Grove Reports newsletter, included in monthly utility bills.
Water Quality Initiatives
Ensuring clean drinking water is paramount. In April 2024, the Environmental Protection Agency (EPA) updated health standards for per- and polyfluoroalkyl substances (PFAS). Since 2017, Cottage Grove has been proactive in addressing PFAS contamination, constructing interim treatment plants to meet health-based guidelines. The city is currently building two permanent treatment plants, funded by the 3M Settlement, to provide safe drinking water for generations to come.
Stormwater Management
To prevent pollution, Cottage Grove is renewing its Stormwater Pollution Prevention Program (SWPPP) as required by the Minnesota Pollution Control Agency (MPCA). Residents are encouraged to review the SWPPP document available at City Hall or on the MPCA website. Public input is welcomed to enhance the program’s effectiveness.
By understanding our local climate and supporting these environmental initiatives, we can all contribute to preserving Cottage Grove’s natural beauty and ensuring a sustainable future for our community.