I have 3 northerns and a mississippi DBT. All capable of being outside during winter.
I am not new to turtles. However, even with the winters we have been having lately, I would never want to leave them outside. We have been getting about 4 ft of snow on average a year, and sometimes it's all at once.
I DO NOT want to burmate them because I know that they are safer inside in the winter. I've spent a large amount of money on my turtles, and I wouldn't want to risk their lives on them being outside in winter.
Their new habitat would be suitable for winter, but they will STILL be coming inside. So, no, my ISSUE is WINTER.
Don't get your panties all up in a bunch.
Ok, for starters listen to Creek_Stomper because he knows his stuff. Second, yes you are new to reptiles, you've said this before. Keeping turtles for 6 months does not make you an expert. Listen to advice from people who have years of experience with the questions YOU are asking. I've been holding my tongue for a while now, but you have a habit of quickly jumping down people's throats when you are told something you do not agree with. So in the future please cool down before you jump at the keyboard. Thanks.
I've kept plenty of species outdoors over the years including semi-aquatic and full aquatic turtles. All of them were outdoors all year long, including non-natives. The location you choose is very important. Something that faces south is what you want to aim for. It's good to have shelter on at least one side of the area. This could be trees, shrubs or a building. A pond that gets nothing but full sun can get too warm for the turtles and the algae levels with spike like heck. It's best if the location has morning and afternoon sun. Depth is very important as well. All my ponds were at least 3 feet in the middle but you could probably go a little shallower. Mine never froze very deep because I used a cattle tank deicer in them.
We actually do have a map species native to PA (Graptemys geographica), but besides that your False Maps are very capable of surviving our winters with ease. Heck, I know someone with False and Mississippi Maps that hibernates them outdoors all year in an unheated or deiced pond and they survive every winter with no problem. They come from areas that can have very similar winters as PA so being out of their native area really doesn't phase them.
As for the DBT, I'd be more worried about keeping them outdoors all year long then the maps. They're too nice.