It's like I said on another string; it depends on who you are and where you are. Some years ago I was in Tampa in early December. It was 60 degrees and a bit foggy. I went out to my car in jeans and a t-shirt. I looked around the parking lot and everyone else was wearing parkas, jackets, heavy gloves, hooded sweatshirts and winter boots.
I thought:"What is wrong with you people?".