80fl:
I'd not rest on the idea of a warm winter, were I you... Seven years ago, when we first moved in, without that midwinter thaw, we'd have had no place to put any new snow. It's only been the last couple of years, which were, I think, non- typical, that've been easy. And remember that climate is a long term average: about time for the wheel to spin 'round...
As for shooting, I did my practice on Christmas eve, remembering to exit the sliding glass door prior to firing. It can get ugly if you forget that part of the exercise, not to mention the flack from the boss, cost of replacement, and so forth....
This is, after all, NH, so hit the back yard and "fire at will"!