As BPH points out, socks come in various weights, think of them as baselayers for your feet, to thick and you sweat, to thin and you have cold feet. An assortment of weights will cover a variety of temperatures, an extra dry pair in your pack is priceless!I like Darn Tough. They make several different weights and styles for different weather conditions.
Looking for some new wools socks for hunting, what's everyone using to keep their feet warm?