The level of Lake Superior declined by an inch in March, a month the lake usually drops just a half-inch, according to the International Lake Superior Board of Control.

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The big lake now sits 5 inches below the long-term level for April and is 4 inches below the level at this time last year. Rain and snow in the Lake Superior basin were about normal for March, but the water level decline continued a nearly yearlong trend.

Meanwhile, Lakes Michigan and Huron rose about 2 inches in March, their usual increase for that month, and now sit 16 inches below their longterm average and 6 inches below the level at this time last year