advocate, the Firestone SZ 50 EP's are strictly summer tires, no snow here in Houston, so you would need winter tires if you don't already have them. They are awesome tires, they handle great on dry and just as great in the wet. On the trip from Dallas to Houston in some driving rain, still running 70+mph, only slowing down because of restricted visiblity or slower traffic. One of the guys at the National, javacontour, auto crossed that same day in the driving rain with the same tires, he was complaining that he couldn't get the rear end to break loose.