Water Level Updates

February 2020 Water Level Update

The water levels on all the Great Lakes still remain above their long-term averages as of the beginning of February 2020. Lake Michigan surpassed its record-high monthly mean for January dating back to 1918. This is the first new monthly record set for Lake Michigan in our recent period of high water levels. The Great Lakes…
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January 2020 Water Level Update

The water levels on all the Great Lakes still remain above average as of the beginning of the New Year. Lake Michigan is currently above the highest monthly average for the month of January that was set for the Lake in 1987. If the lake remains at this level, it would be the first new…
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December 2019 Water Level Update

The water levels on all the Great Lakes remain above average into December. Lake Michigan is currently at the same level as the highest monthly average that was set for the Lake in December of 1986. However, the Great Lakes Basin was relatively dry over the past month and as a whole received just two-thirds…
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November 2019 Water Level Update

The water levels on all the Great Lakes remain high, with every lake within seven inches of it’s record high water level for the month of November. A wet October saw precipitation that was was 46% above average across the Great Lakes. Water Levels on Lake Michigan-Huron   Here are five things to know about…
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October 2019 Water Level Update

The water levels on all the Great Lakes remain high, with every lake above its long-term average monthly mean. Lake Superior is within one inch of its highest monthly mean recorded for October. Lakes Erie, Ontario, and Michigan-Huron have begun their “seasonal decline” and have dropped below their record high monthly means. Water Levels on…
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September 2019 Water Level Update

The water levels on all of the Great Lakes remain very high, with every lake above or within a few inches of its record high monthly mean. Lakes Superior and Erie broke their record high monthly mean for August while Lake Michigan-Huron was three inches below its record high monthly mean. There is a good…
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August 2019 Water Level Update

The water levels on all of the Great Lakes remain very high, with every lake above or within a few inches of its record high monthly mean for August. Looking back at the month of July 2019, Lakes Superior, Erie, and Ontario all broke their record high monthly mean for July. Lake Michigan-Huron just barely…
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July 2019 Water Level Update: Lake Michigan Water Levels Close to Record High

The water levels on all of the Great Lakes are very high, with every lake at or above its record high monthly mean for July. Looking back at the month of June 2019, Lakes Superior, Erie, and Ontario all broke their record high monthly mean for June. Lake Michigan-Huron just barely missed setting a new…
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May 2019 Water Level Update: Great Lakes Water Levels Approaching Record Monthly Highs

On May 6th, 2019, the United States Army Corps of Engineers released its May 2019 six-month Great Lakes water levels forecast, available at this link, indicating that some of the Great Lakes are projected to eclipse record highs for the summer months. The U.S. Army Corps of Engineers – Detroit District also issued a News…
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Spring 2019 Water Level Update: Lake Michigan Water Levels Remain Above Average

The water level of Lake Michigan as of April 26th, 2019 is at an elevation of 580.87 feet above sea level (from the International Great Lakes Datum). This puts Lake Michigan at 26 inches above the long-term average water level for the month of April, calculated from water levels measured from 1918 to 2018. From a historic perspective,…
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