My insurance (AmFam) agent told me that the rates are calculated with the assumption that winter riding is less, but the coverage is year-round. Though I live near Minneapolis and work in northern Illinois - definitely northern Midwest - if the road is not slippery, I ride, even through the winter. I try to avoid salt, obviously, but for a $5000 bike and 57 years under my belt already I'm not missing any more riding time than I absolutely have to.