people people people, please settle down. it's very simple and all of this research does not need to be done. I have lived in Green Bay, WI for the majority of my life and I don't even plan like this. I just have a simple Columbia like this Columbia Cascade Summit Winter Jacket
I use it most of the time during winter. The only exception is when it is very cold (10 and below) and when I ski, I will wear my $30 fleece underneath with the Columbia on top. This fits me well. I do not believe there is a need for a long coat that covers some of the legs. I wear jeans everyday during winter and my legs do not get cold.
Finally, yes I do sometimes wear only a hoodie during the winter haha, it's not that bad people. Madison isn't in Canada now.
Lastly, I wear my Nike basketball shoes everywhere, even while having the occasional snowball fight. They dry overnight and are very durable. You do not need to wear boots to class, that's ridiculous. The only time you will need boots is while sledding or walking through snow over an extended period of time.
Also, always bring a hat and gloves!