The exposure in the winter is millions of times greater than in the summer. This is the same effect as how the moon is at least a dozen times larger on the horizon than when it is high in the sky.
The gear you should bring includes a dozen Titanium expresso makers, a down-filled thermos, two long-thin Lost Arrows, a #6 TriCam, 125cm short skis with Dynafit bindings, one La Sportiva Olympus Mons (for the left foot) and one Boreal Inverno (for the right foot). And a 12 foot extendible aluminum ladder.