Here's the snow cover map for the continental United States. 48% of the US has snow cover, with an average depth of 4.5". Impressive! Last month's snow cover was 17.7%. Head to the National Snow Analysis page of the National Operational Hydrolgic Remote Sensing Center for much more.
It appears the weather pattern will remain quite active with more accumulating snow for Christmas weekend, so the the snow cover will likely expand on this map soon! Check for more blog updates on the winter storm heading our way Christmas Eve!