Here in New England we are having the same problem. Usually it's down as low as -25F by now and the last few days have been 40'sF daytime, 20'sF nights. Trees are budding out, sap is running, someone said her horse has started to shed its winter coat. This is NOT a good thing....
I know I said once Christmas was over, the snow could melt and it could be spring, but I was kidding!
That's insane temperature difference in few days, that's not good to anybody.