I've been playing ice sheat too... Avg -20 in summer & -70 in winter... Disabled points in Pepare carfully. Got 2k Wood, got 5 people all bionics & 200 meals & 4k meat. Also gave them all parkas & torques.
If my maths correct I have 600 meals... A.k.a 120 days... their bout to die from starvation... I NEED the synthetic Material but since I've put down the communications console (its been ~4 months) I've not seen ANY trader.
ive only had traders in the summer though that might just be my story teller
i chose an easier spot, highest ive seen the temp go is something like 10C though it averages around freezing
lowest ive seen is -60C got a cold snap once that brought it down to -90C at night
i played with points enabled, started with 50 food, about 1k wood and minimal skills... so wish i upped the skills in some spots, also wish i could figure out how to start fishing
i was an idiot early on and used all my potato seeds to try and farm, didn't realize they actually died after 4 or so days whether or not they fully grow, so no seeds for a year until I got more from cargo pods, well second set of cargo pods, first set got me something like 100 tobacco seeds
i also got excited around year 2 when i got traders, bought something like 60 synthetic threads, and only realized after they got killed by bandits that i needed other materials. hope I don't have to wait another year... do i get synthetics from those robots?