We try to keep game more outdoors in the summer, because in the summer most people enjoy being outdoors more.
In the winter, that is clearly not going to be the case.
We don't really consider the porch a room in the house, although it has a table and a television and a refrigerator. We put sheet plastic over the screens in the winter, but it gets COLD and we don't spend much time out there. It's mostly a cigarette smoking room from November through March.