OP. I'm from Florida, too.
That being said, I am used to the heat so I usually wear a base layer under the pants. It's not cold at all when you are riding, but it's the ride on the chairs that is cold while sitting in the cold and wind. If it was Tahoe like one poster said, you'd be fine on the chairs, but in the Colorado or Utah hills, it's a bit colder. BTW, gonna be in PC this month the 21st-28th. Am looking forward to seeing what all the hubbub is about with the heated chairs at the Canyons.