I'm from Nova Scotia, and the humidity is actually pretty good for guitars. A little too much at times *summer especially, 87% relative humidity is considered LOW for summer* and extremely dry in winter by comparison.
Oil the fretboard twice a year, and keep the guitars in their cases with case humidifiers in winter. In summer, keep em in the case without the humidifier, and consider buying a de-humidifier for summer.
Winters aren't very cold on the coast. Hope you don't mind snow and freezing rain though. Snow especially. My folks have already shovelled 11 feet or so and it's only teh end of November.
I'm moving back soon I think. Calgary is so dry all the time that my acoustic cracked when I brought it here, and I got some warping on one of my Pauls from the extreme change in humidity from very humid to desert like.