Quote Originally Posted by Poison Oak View Post
Oddly enough, sometimes I feel colder when the temp is in the 30's or 40's than I do when it's in the 20's or teens.
If you have a heat pump that is a common question. It's because when the temp is in the 30's the air coming out of the register is fairly cool, not much above the room temp.
When it is colder, the auxiliary heat, usually electric resistance, pumps out a lot hotter air.

It's something I've noticed in my gas forced air heated house sometimes too. I think it's because he colder it is,the more the heat is running distributing the hot air. When the outside temp is warmer, the heat doesn't run as often allowing drafts and cold spots to develop in rooms. I also tend to dress warmer when the outside temps are in the 20's even in the house.