It can sound very strange, but feeling the freezing wind on your skin make you feel a live. You don't a long time, when you walk outside to feel that element are stronger than you are. It will take you only few minutes to have you body adapting to the weather around you.
The sun is there for part of the day but it's not enough strong to think the temperature will be confortable. So don't forget your scarf and go play outside, you will feel the life circulate inside all your body to protect you from the cold outdoor.