"Great Lakes waters are warmest on record for early July - Lake Michigan’s average water temperature reached 75.1 degrees on July 8, nearly 11 degrees above normal, .."

"Great Lakes waters are warmest on record for early July - Lake Michigan's average water temperature reached 75.1 degrees on July 8, nearly 11 degrees above normal, .."

https://www.washingtonpost.com/weather/2020/07/14/great-lakes-record-warm-water/