March 2025
March 9 Water Levels Report
Lake Michigan-Huron remains 11 inches below its level at this time last year.
From a month ago the water levels on Lakes Superior, Michigan-Huron & Erie & Ontario are down 1, 0 & 2 inches, respectively, while Lakes St. Clair is up 9 inches, and Lake Ontario is up 1 inch. Lakes Superior, Michigan-Huron, St. Clair, Erie & Ontario are lower by 5, 11, 10, 14 & 9 inches, respectively, than they were at this time last year. Lakes Superior, Lake Michigan-Huron, Lake St. Clair, Erie & Lake Ontario are 6, 9, 1, 2 & 9 inches below their long-term March averages. All the lakes remain well below their March record highs.
In a month, Lakes Superior, Michigan-Huron, St. Clair, Erie & Ontario are expected to rise by 1, 2, 4, 6 & 8 inches,