It is not unusual to have snow after April 14 here in Mo, but that is the date you have to remove your studded tires, IIRC.
While rare, we have had snow in May - many years ago.
The green house/sunroom linked to a recent garden post is on our wish list. When and if Hubby’s part of the sale of his Mom’s house comes in from the estate settlement.
Mrs. Outrider (born and raised here in MN) tells me it is not unusual for it to snow in June! I followed her to the Rez back in ‘09 and have seen heavy white stuff in May... Heaven forbid it this year! (Even though we could use some more precipitation up here, like most of the U.S....)