You live close.
If I were to visit the area, I would look at probability trends to see when the best opportunities for fresh snow might match a good time to visit.
Once the apparent snow events are noted, I would likely go back and match it with temperature data to see if there were extreme cold events associated with pre/post snow events and or any possible warming trends that are less desireable to ride in. For me a single year is not that informative, the 5 year is a little better. Also, if you have a rough idea of a minimum snow depth needed to enjoy off-trail riding, that can be gleaned as well. I would also target a graph that displayed snow depth vs. snow water equilavent since that is a column weight measure which can be influenced by warm/rain events saturating the snow column.
Fun to play with though.