Thanks for reaching out to us! Actually, the Merrell Pechora Sky Boots do not have a temperature rating. In fact, most boots do not have temperature ratings. This is for several reasons. Mainly, it's because warmth is a subjective thing, unique to each person. Not only that, but providing an exact rating for winter boots is difficult because there are so many variables that can affect a person's (boot's) warmth: your sock system, activity level, exposure time, etc. Also, these particular boots are not waterproof. I hope this helped you out.
Date published: 2016-12-07