Why do you consider this "crazy"? It's December. It's 5 days from the winter solstice which is the "official" start of winter but those of us who actually experience weather know that winter started 30 to 90 days ago depending on when the first frost was.

What's "crazy" about Colorado weather is that it's going to be 40°F by Friday and nearly 60°F by Saturday and all of that 11" of snow will be a distant memory.

What's even "crazier" is that I started my commute this morning at 13°F and that the temperature 9 miles west of me and 1000' higher was 26°F. That's nutz and is extremely difficult to dress for.