If Maine is anything like New Brunswick: swamps; hills; glenns; meadows; deep woods replete with alder, pine, spruce, and birch; plenty of wildlife, for better or worse; muggy summers that CAN reach heatwave levels (maybe not as bad as Cali, but I've seen up to 35-40C or so with humidex); not a whole heck of a lot of real cities - the difference between freddy and Windsor is big enough, population wise, but I was still getting over the differences between Changchun and Windsor when I got here - so expect some of that. Things are probably also a good bit less convenient, but the people that ARE here are generally great people.
and Re: Winter - it's all what you make of it, dig out a cellar and start making lager in it, tap some maples and birch before... well about this time of year and start making syrup, pine needles and hay are great at insulating strawberries for the coming spring. Heck, you can make a nice brandy of sorts by making fruit wines, leaving them out in a dark spot like a shed and pouring out the part that didn't freeze, AND it's already in the perfect temperature for a taste. You can also always dress for the cold of Winter - and getting heat stroke IS possible during that time, so don't overexert yourself and dress to be "comfortably cold" at rest (but this is primarily for periods of extended exposure in the cold) - and waking up to see a nice, fluffy blanket of snow just outside your window can be an amazing experience... sure shovelling your driveway sucks and walking through it sucks - but again, it's what you make of it, I say we can all use a bit more intestinal fortitude and upper body strength anyways.