I'm familiar with cracked lips, even if I personally don't really suffer that problem. Got the same temperatures on a warm winter, but the colder ones drops down to about -20 F, or -30 C. New year's eve is a classic for that one, it's either very cold or warm (about 20 F, -5 C).
I guess there's something of these things that causes it. Funny about the sun, we are somewhat lacking that during december/january. That pale excuse that's up for a few hours a days doesn't give any heat, in fact you want it cloudy as it's less cold then.
Now that is cold, personal record is -46F, or -43,5C, but with the wind chill, it was -60F or -52C. It's pretty close to the border of what the city can handle. Is it in Alaska?
Kadagar, is it military tips you remember? I suspect that the tenting wasn't that volounteered.
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