Folks are living in RV's in the North Dakota oil fields 365 days a year now. No difference what time of year the calendar says it is.
As our OP said, from -40 F to 110 above. And all points in between.
Jamesconn, from what I have read, and from folks in Williston I have talked to, forget the RV if you can. Yea, neat and homey. Then winter sets in. It will be such a PITA to keep from freezing up that I just don't know if the results will be worth the effort.
Cause you will need insulating skirting, extra large propane bottles, window treatments, and on and on and on. And you'll still end up with frost inside the unit.
WARNING TO ALL: if anyone is buying a used RV, find out if it has been used in the Bakken oil fields. If so, then it has wintered there and should be avoided at all costs. Moisture, frost and just too many problems worth owning. They come out of there as no better than salvage value junk.
PS: Jamesconn, Williston was my home town. I've been there a lot recently and seen the zoo it has become. I'd never, never winter there in an RV.
The Mad Norsky, Doll, Logan and Rocky
2014 Ram 3500 w/ Cummins/Aisin
2019 Northern Lite 10-2 EX CD LE Wet Bath
RV'ing since 1991
I took the road less traveled .....Now I'm Lost!