Some snow data/plot suggestions

[akrherz]

From HH

• Winter recreation (snowmobiling and cross country skiing): Probability of
  exceeding a certain snow depth threshold for various times of the winter
  (6"+ probably the most common). Or a count of how many days this threshold
  is met each winter.
• Similarly, wildlife biologists like such statistics in evaluating potential
  impacts of excessive snow upon wildlife; in this case the number of days per
  winter where a deep snow cover exists (perhaps 10"+) that inhibits foraging
  for food.
• Along with either of the above applications a simple monthly average snow
  depth might be an easy thing to have (such as in ClimoDat, but I don't know
  if having only a partial historical record works for how ClimoData is set
  up.)
• Putting any of the above in a map form could have some value too.