Don't get too confident. I lived in Southern Wisconsin for many years and I rememberon more than one occassion waking up in middle/late April, looking out the window and seeing 3 inches of fresh snow on the ground.
__________________ Current car
2000 Boxster 2.7l red/black
Previous cars
1973 Opel Manta
1969(?) Fiat 850 Convertible
1979 Lancia Beta Coupe
1981 Alfa Romeo GTV 6
1985 Alfa Romeo Graduate
1985 Porsche 944
1989 Porsche 944
1981 Triumph TR7
1989 (?) Alfa Romeo Milano
1993 Saab 9000
I do remember it snowing in early May once! But I think we're out of the woods now! The ground is so warm nothing would stick now anyway. I already rotated the snow blower and lawn mower too