What I would expect for any single wall tent. At the temps I was at it is impossible to get away from. The vents work well, especially if I had the door dropped. But no matter what there was frost build up near my head.
I wish I would have taken a picture (and thought I did but it may have been on a desktop I lost in Dec) of the inside the night that my son spent with me. As we had to keep it buttoned up because of the blowing snow it was awesome inside. Frost growing from the walls. My son was like, "Dad, I'm getting all wet from this snow". I told him to move faster. ;-)