The wider the tire is the better on dry pavement or gravel, on snow, rain or ice it's the opposite. Summer tires are nearly impossible to find anymore (since mid 70s), snow tires will provide adherence at -40. 4 seasons tire's compond will be very splipery at -10 (celcius) and colder. 4 Season tires tread will have a chanel for water to escape, winter tires will have their grip design to "hold everything".