The last time metro Detroit had this much rain in autumn, Chester A. Arthur had just become the 21st U.S. president after the assassination of President James Garfield.
Our record rain total for fall (September, October, November) is 13.74" in 1881. In 2018, we've had 13.65".
Here's the breakdown over the past few months, and where the rain totals rank:
September: 6.46" (4th wettest)
October: 3.56" (29th wettest)
November: 3.63" (21st wettest)
Our rain total for the year is in the top 10, and we still have the month of December to add to it. We've had 41.15" of rain in metro Detroit so far.
We would actually need record-breaking rain for the month of December (which is 5.19") to break the record for annual rain, but we'll probably end 2018 around the top 5 for wettest years in Detroit.