For me, it used to not be a factor, but now with diabetes causeing my toes and fingers issues, it is. For me I can hunt down to 5F pretty easy with no wind if I am prepared.

Its the wind that kills me. For example I hunted wed when it was 20F out and was fine. But there was no wind, but I hunted a few days before in 38F with 10MPH wind, and I was miserable.

Alot of folks on here talk a big talk, but you guys must be the rare few, cause when it gets below 15F, I don't see another hunter in the woods hardly.