I know when people think of FL they think WARM & SUNNY all year. Yet, down here (I live in South FL.) most of us can't wait for Dec./Jan. weather! I enjoy the sunny days but I'll take a chilly day at WDW over a HOT day anytime!
It's easier on the kids and us to stand in line when you are NOT sweating up a storm, dying for another drink and wishing to just go to the resort pool for a swim.
The chilly air keeps us up and going and as long as you remember your gloves and hat you'll be comfortable.
Besides rain isn't as probable during Dec/Jan!
I'll be spending XMas with the Mouse, and we'll both be wearing our gloves!
Happy Holidays and counting down til our trip Christmas Morning!