I grew up in Ohio in the '70s. We would get our first snow in late September and by the end of October the ground would have permanent snow cover. We wouldn't see grass again until some time in April with the last snow coming in May. The giant mounds of plowed snow would last into June. It's hard for me to even imagine a six-month Winter now, but that's what we got.
In Summer the "heat wave" was when it got to 85°F during the day.