cold weather

I drove out to Mt. Dora on monday and saw some folks picking oranges. I saw them, with ladders and bags and thought, "Wow I didn't know anyone cared about those fields. I thought they were abandoned." Then as I sat huddled under covers last night (our heat pump was having trouble keeping up with freezing temps) I learned why they were out there. The news said people didn't want to loose orange crops to a freeze so some were picking early. 

Chris and I were trying to figure out what the deal is with Florida cold. Both of us have lived places where cold is a much more normal experience. We should not really balk at the temps we are seeing now. But we are both very cold. How does that happen? Just something I was thinking today.