May 2025
May 4 Water Levels Report
Lake Michigan-Huron remains 7 inches below its level at this time last year.
From a month ago, the water levels on Lakes Superior, Michigan-Huron, St. Clair, Erie & Ontario are up 6, 4, 4, 5 & 6 inches, respectively. Lakes Superior, Michigan-Huron, St. Clair, Erie & Ontario are lower by 3, 7, 9, 9 & 4 inches, respectively, than they were at this time last year. Lakes Superior, Michigan-Huron & Ontario are 6, 7 & 7 inches below their long-term May averages. Lakes St. Clair and Erie are 0 & 2 inches above their long-term May averages, respectively. All the lakes remain well below their May record highs.
In a month, Lakes Superior, Michigan-Huron, St. Clair, Erie & Ontario are expected to rise by 4, 3, 2, 1 & 5 inches, respectively.
&nbs