I recently landed in a small town that gets a decent amount of snow in the winter, and commute on my bike with thin road tires. I'm thinking I want a fat bike with some nice thick tires to deal with the snow days, but local used options are limited and new bikes are fairly pricey. I have a bit more options in the used departed if I can go with more standard mountain bike. Are regular mountain bikes a viable option for commuting in snow? We had a very weak winter this last year with 7 inches all season but from some locals I've spoken too they said it can get up to 6 or 7 inches a month and only main thoroughfars are plowed, if amount of snow makes a difference in what sort of bike would be most suitable.

Appreciate any advice from those of you who ride in the snow regularly.