I have been doing this many years since I live in the midwest. It depends IMHO on what your goals are....putting, distance etc...

I focus my offseason training on what my goals are with my game for the upcoming season. Regardless indoor simulation swings, strength training and flexibility are always in the mix.

Cheers

In the winter months I'll head to a trackman simulator but I do have enough space to work on putting and chipping in the basement. In the milder months I can hit balls into my net with a small heater going in the garage