This past week, we had overnight lows in the -25 range and daytime highs in the -10 range.
It wasn't too bad.
I normally wear 200g thinsulate boots, bought a pair of 1000 gr on Sunday (they did not arrive till Wednesday, though.) I wore some of the new style base layer stuff, browns, motorcycle overpants (Firstgear), a non UPS knit top overy my UPS shirt, then, my vest and jacket. On my head, I had a knit hat and one of those balaclava things that turns into a hood.
I was very comfortable doing resis and kept the door open all day (not while traveling to and from the route). While I was doing businesses, I was over-dressed and took off the overpants and alternated between the liner jacket and the lighter raincoat. Refrigiwear gloves worked perfect, but will not last very long. I wear mechanics gloves with knit liners when it is above 0. I doubt the Refrigiwear gloves would last more than a month of daily wear, but they are warm and kept my hands dry (sometimes, really warm gloves will not let the seat evaporate fast enough, making your hands wet, yuck.)
I lost about 10 lbs last week. I did not have the energy to eat big meals and am not very big on snacking.
Temps were below zero from Monday eve till Friday at about 3p.
TB