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DULUTH — The level of Lake Superior dropped as it usually does in March, and has reached its likely low point for the year, but it will start its seasonal increase in April as rivers lose their ice, snow melts and spring rains arrive.
That’s the report from the International Lake Superior Board of Control which notes the big lake’s water level dropped about a half-inch in March.
As of April 1, the level of Lake Superior was 3.5 inches below the long-term average and is 11.4 inches below the level of April 1, 2021.
Lake Superior usually rises from April through September and then drops in fall and winter. The lake could increase as much as 6 inches in April as more water flows in, the board noted in its monthly report.
While it can vary greatly depending on rainfall, Lake Superior’s water level is expected to remain slightly below normal through August, hydrologists note. That’s good news for waterfront property owners as it should lessen wind and wave damage compared to high-water years.
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Lakes Huron and Michigan rose nearly 2 inches in March, slightly more than average, and now sit 9.4 inches above average for April 1 but are 14 inches below this time last year and 28 inches below the record level for this time set in 2020.
