Dead Winter
STAHP
The dark complected skin I would assume is basically due to quite literally having a tan for five months out of the year due to being unable to escape the sun, then passing that on for hundreds and hundreds of years. You also have to remember, John, that the earth tilts on an axis and that the top of said axis leans towards the sun in the summer months. When I was in Alaska, the temperature never got above 85-90 in the summer months in Anchorage (which is in the southern part of Alaska along the coast and is warmer than Canada), but staying out in it for just a couple of hours would give you a serious sunburn. There was nearly zero humidity and the weather was perfect and so comfortable, but you had to be more careful there than in a tropical place due to being quite literally closer to the sun.
Now, travel straight north to Cold Bay, Alaska along the northern shore where they have months of endless sunlight and in some places the snow never melts (which is the equivalent to northern Finland, Sweden, Norway, and Russia), and expose yourself to constant sunlight for literally months on end. Eskimos and Saami/Lapplanders are practically cousins.
Now, travel straight north to Cold Bay, Alaska along the northern shore where they have months of endless sunlight and in some places the snow never melts (which is the equivalent to northern Finland, Sweden, Norway, and Russia), and expose yourself to constant sunlight for literally months on end. Eskimos and Saami/Lapplanders are practically cousins.