It goes without saying that most of Ohio is well above normal rainfall since June 1st this summer (2021) A large portion of northern Ohio has received 10-15" of rain since June 1 with some areas close to 20 inches! Actual rainfall numbers are highest in eastern Huron, southern Lorain and most of Medina Counties.
Images below show rainfall vs normal. (Note the legend numbers are different for each image. Zero contour is the same for each)
How about last summer 2020? Most of northern Ohio was well below normal--with the exception of portions of Portage, Geauga, Trumbull and Ashtabula counties.
Summer of 2019 rainfall departures are comparable to this summer overall.
Now the summer of 2018:
...and finally the summer of 2017:
