I heard someone recall that the Mojave made one wish for a nuclear winter. Quite a few times actually....

Yeah it was a comment by generic NCR troops. None of them have been to Jacobstown, apparently, but then they didn't really have a reason to.

its boston not the rockys the highest mountain is whatever the most successful ant colony in the area is and I doubt those get snow on there summits.

So Boston is now Cyrodiil?

http://www.boston.com/travel/new-england/ski/2013/01/02/ski-areas-within-two-hours-boston/9fw6lvetUKGVrehysu8MxO/story.html#slide-1

MAP PLEASE

https://www.google.com/maps/d/edit?mid=zsEMY9MxP6uc.kJaDMh-Ddqxk

Granted most of the ski slopes there would bairly qualify as the Bunny slope in Steamboat but then. . . WEATHER FORCAST PLEASE!

October 62° 46° 3.8"

November 52° 38° 4"

December 42° 28° 3.7"

January 37o 22o 3.9"

February 39o 24o 3.3"

March 46o 32o 3.9"

https://www.youtube.com/watch?v=xmg5lEfFGHQ

https://en.wikipedia.org/wiki/Desert_of_Maine

Now do you believe the environmentalists when they say we are walking disaster areas?

oh and just to make things perfect. . .

https://en.wikipedia.org/wiki/B%C5%82%C4%99d%C3%B3w_Desert

now lets review, Man screws up and creates inland desert,

man then backs off and lets land return to normal

Man then gets the idea of HEY WE NEED TO CONSERVE THIS! and recreates desert. .. . .

Maybe they will add mountains to end the map like in Skyrim.

Well, there is the Skyrim Gamejam video that shows actual dynamic season change. The only reason it wasn't modded into Skyrim is because it would bring the engine to its knees resource wise. With several years of refinement engine/scripting wise and seemingly the ability to utilize more resources its very plausible its been made a standard feature. Or at least something like it. Especially since you would effectively need an art team to generate the textures needed, unless they found a way to 'fix' that with lighting.

http://vignette3.wikia.nocookie.net/fallout/images/f/f5/Two-headed_deer_concept_art.png/revision/latest?cb=20150617235703

The background of this concept piece seems snowy.