Haven't seen many other service troops out there doing it for the past 40 years. The ICBM maintenance troops are out there every day. In the winter, maintenance operations take at least twice as long to perform. It can take as much as four hours to just penetrate a Launch Facility when you have to chip ice and shovel snow just to get to the A and B plugs.
A normal can change (guidance system replacement) will take 12 hours in the winter and even once they are inside the Launch Facility the cold topside floods down into the launcher and makes things pretty nasty.
Except for the Battle of the Bulge and training, Air Force troops have historically spent more time in those kinds of adverse weather conditions than the Army. I won't even go into the aircraft maintenance types that are stationed in the hinterlands of Alaska at the forward operating bases even today.
Do you really think that the army stays back in garrison during cold weather? Their training and field work continues, in fact the units that cannot find those conditions have to travel to places where they can find them.
Where are you guys getting your knowledge of daily life in the Army and Marine Corps, you really think that they are the indoor services?