Definitely NOT normal. Some temp swings above and below freezing common for entire upper midwest and normal for lakes even still thick with ice in April but not this craziness. We are upper WI and Phil (who is U.P. Mich. a few miles north of me) has lost his snow cover which is absolutely freaky for them.My Iowa son says weather has been insane. 80's then 30's... He hasn't been there in spring yet (Covid forced him home last spring) and wasn't sure if this is just normal Midwest weather.