Avalanche,
Most of your questions can be answered by doing a little web searching. Climate data is readily available. So is demographics.
Staying to your self is fine. I do. I only go to town once a week. Have but a few friends up here, but it's quality, not quantity, right?
Regarding property, I'd probably not buy such rugged property if I had to do it again. Half of my land I've only seen twice, and that is with great effort. Steep and thick with trees and shrubs (and wildflowers and deer and turkey and songbirds and elk). Makes for a good buffer between me and the neighbors, but there's really no good use to put it to, not even a rifle range!
Regarding your father's preferences, I haven't seen a black person in WY for about a month now. Haven't seen anyone wearing a turban (sp?) on his head either or wearing mid-eastern garb. Haven't seen an Asian person around here at all. Don't hear much Spanish spoken either, especially not in Spearfish. Maybe ocassionally at the WalMart in Gillette, but that's unusual. It just seems that a lot of minorities don't come to WY. Maybe it's a critical mass thing. I don't know. Those are the facts as seen by this humble correspondent!
Mac