Most of the things I'd say have already been mentioned. However, there are hardly any places where I might legally camp for the night are open places. For some obscure reasons, if you camp in Shenandoah National Park in Virginia, you have to camp out of sight of other campers and out of sight of the trail. Practically everything is covered in trees and the most frightening experience I ever had while camping was spending a night when the wind was up. I lay there hearing things falling. But nothing fell on me, I'm happy to report. In any event, I've never camped where the tent had to put up with the full force of the wind.
There's also shelter for a day trip. Some of the more interesting places I can think of can be very windblown and for a rest stop, some kind of windbreak is necessary, as it is when it's raining or snowing. But tying down the shelter has never been a problem. Interestingly enough, I see just as many people out on the trails during cold weather as I do during the summer. To have it snow when I'm out is almost a bonus.