I would recommend calling a tire place like goodyear. I would recommend Les Schwab but you have none over that way. We just have always had tires that had deeper tread and my tires were always siped! Studded tires make a lot of noise when there is no snow on the ground. Ours are allowed here from Nov to April or May I think. I do however think it is great to invest in a snow set and a regular set that way they can be changed over after the season is over. That is just my take! I also know that front wheel drives are better in the snow than rear wheel drives! This year will be a new experience for me since we now actually have a 4x4 truck and it is an automatic. :) I usually drive dh's car since it is front wheel drive and a standard. I feel you have more control in a standard than an automatic.