There are some interesting surprises with the timing of 12"+ snowstorms during the historic 2010's snowfall era. The first unusual occurrence is that the October 29 to November 15 period has been more active than the December 1-15 interval. Another interesting pattern is the more active first half of March than the second part of February.
Roughly 2 week snowfall periods for the 2010's and number of 12"+ snowstorms
Oct 29-Nov 15.....3
Nov 16-Nov 30....0
Dec 1- Dec 15.....0