I also took Ray's point under the climo regression idea. IOW, eventually at some point Climo tries to even out and eventually get back to the long term norms. I think that is what Ray meant by odds.
I know it only affected a small portion of us, but 2/15 is secretly one of those most short term prolific snow producers I can recall. That area from Bob to EWB had like 23" in 6 hrs. I think some were getting 5-6"/hr snows for a few hours.