We already have the mats, although porkpal is right- the cows are really only in the barn when they are milked, or the occasional wandering in when it suits them. We found them on sale over a year ago, and picked 2 of them up.
Yes, we do have winter- the new banner is our well house either last year, or the year before (I forget). Jan and Feb it will be below freezing over half the time, with some warm fronts here and there to keep us sane. Last year we had over 2 weeks of temps in the teens, but that's pretty rare. I know, nothing like what ya'll get, but it's cold enough for us!
Also, we had the concrete scored on the animal stalls and the middle alley to prevent any hooves from slipping. Don't want any cows looking like Bambi on that ice pond!