Mn Dnr Ice Out Map 2025 Schedule. They check the lake to determine the dates that the lake freezes over and the dates when it thaws in the spring. Distributed on the first thursday of the month.
Once our official ice in or out dates are determined, the data is provided to several agencies, including the mn dnr. It’s an incredibly handy tool to help you plan for and prepare for ice out on your favorite minnesota lake.