I remember back in the 70s, we would get a few days/nights every winter where the temps got down to about -25 F (in Illinois). It’s been awhile since we’ve had that, but it’s not unheard of.
I remember -25 in the 70’s on a regular basis in MN...and then in Illinois....also in the 70’s....
;-)
I really hated the ice storms in East-Central Illinois. Couldn’t get to the gas cap behind the license plate on the ‘74 Impala....