I spent some time this morning looking at my snowfall measurements since moving to WV in 2006 I'm in a pretty good spot to get wintry weather relative to the rest of the forum. I have verified WSW criteria at least once a calendar year for 12 years straight. I have had accumulating snow as early as 10/29 and as late as 3/29, so call that the "season" when I can see snow on the ground.
Even with my location, I have only seen accumulating snow on 9% of the days during that snow "season." Only 4% of those days have seen an inch fall. Only 2% has seen 3". And only 1% of days has had a 6" snowfall. You really need a lot of patience to wait for snow in our region.