Great Lakes Ice Cover at Zero Percent
Posted on: December 15, 2015
Great Lakes Ice Cover - Dec. 15, 2015
The Great Lakes had zero percent ice cover on December 15, 2015.

The long-term average for ice cover on the Great Lakes between the years 1973 and the present is 53%, although last winter coverage rose to 92%. Great Lakes ice is part and parcel of weather and the environment but also affects the economy including hydropower, commercial shipping and the fishing industry. There is a strong relationship between regional climate, water temperature, water movement and even spring plankton blooms. More information about Lake Superior and Great Lakes ice, including maps showing coverage, can be found below:


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