1914 : Greatest 24-Hour Rainfall Calendar Add to Calendar Add to Timely Calendar Add to Google Add to Outlook Add to Apple Calendar Add to other calendar Export to XML When: September 1, 2024 all-day Repeats 2024-09-01T00:00:00-04:00 2024-09-02T00:00:00-04:00 The greatest 24-hour rainfall in state history was recorded at Bloomingdale (Van Buren County) : 9.78 inches. Source : September/October 2014 Michigan History magazine.