I went to Colby a long time ago. I can’t speak to your joint pains, but don’t fear the Maine winter. You’d be surprised how your body adjusts to it. I still live in northern New England, and let me tell you there’s nothing like that first day in March where you go outside and say to yourself “hey, it’s warm”, and the thermometer says 45F. The Colby campus is fairly compact, and pretty much everyone lives on campus, so you won’t need to worry about driving (or shoveling snow), which is really the most painful part of winter. Freeport and Kittery have all the winter clothing supplies you will ever need. And get boots with good traction.