I feel like to closest thing we had to a Dec. 5th scenario I think was like 2017? Whatever it was it snowed about 1-2 inches here, it came earlier than expected...and I had to drive home (including on the highway) from a gig in it...and it was frickin' epic and my first time driving in powder, lol (mom was in the car and she wasn't having fun)
P.S. The only time a muggy Christmas is acceptable is if a HECS follows in Jan/Feb a la 66', 83' and of course 16'