I like camping, and I am seriously considering winter camping with my puppies, weather allowing. I am not concerned about mysef in the least as I've slept comfortably multiple times around -9 °C (15 °F), crappy and cold around -15 °C (0 °F). I usually camp without a tent, with my sleeping bag, a waterproof overbag and a tarp in case it gets really rainy or windy. December in Toronto is typically between -3 to 3 °C (25 to 40 °F), says Google.
I am fine with that for myself, concerned for the puppies. I will have by then a 5 months old German Shepherd and a 8 months old Border Collie. They might get wet during the hike (they will definitely find something to roll in). Both are indoor dogs. No significant fire because rules (I am not going far from the city, safety first).
Is it too much? Not sure that puppies can handle the cold if they are wet from the hike.
Would a tent help? Not sure how the puppies would behave themselves in the tent, or if I'll end up with well-chewed pieces of tent.