The coldest I've ever been out in our James Baroud is 25° F. Not terribly cold, but certainly enough to freeze any condensation. My wife and I have a knock off brand Mr. Buddy heater that we put in the tent after we get up and start making breakfast. By the time we're done with that the tent is dried out and the fabric is warmer making things much easier to fold up. We hope to really get a chance to camp in the snow this year and will be purchasing the isothermal kit for our tent. With the hard shell I feel the snow will slide off pretty easy, as when we close it up the front gets clasped first, giving it a good angle to get rid of the snow.
Thanks for mentioning the James Baroud, that was my other hard shell RTT of interest. That is great info about the heater, and I was hoping the angle for removing snow would work out too. Thank you!