Mane wouldn't lighten out, I'm fairly sure. And I'm from NY, and know winter well (it's a week 'til April and they're forcasting four inches of snow). Ontario has similar, if not the same weather (in fact, we're practically neighbors... sort of) and the fading black horses at my barn don't fade. Plus, she has ginger-ish muzzle (at least in the second one - could be the light, though).
Sorry if I seem argumentitive.