We get down to about -30 here in Iowa and the lack of humidity is a killer. Add to that summer humidity 100% for months on end and you get the picture. However I refuse to live with out AC in the summer so that also takes care of our excessive summer humidity.

For the first two yeas I was here I used to wrap up all my axes and keep em in hard cases with those little humidifiers. That worked well as long as I kept the guitars in there cases.

However as I like to play em occasionally, I found this to be a pain so now they live on stands and we humidify the whole apartment using a Vicks steam humidifier or 3. These things work really well and stop also me from waking up in the middle of the night with nosebleeds / feeling desiccated !

I do have to occasionally adjust the set up of the electrics however generally they and the acoustics are pretty well behaved all year round.