All-season tires carry a lot of explanation right in the name. A versatile, dependable design gives drivers confident grip and performance through a variety of conditions in all seasons. For drivers who encounter fairly predictable conditions and do a lot of city driving, all-season tires can fill their role in providing stability and performance admirably.
For tough winter conditions that include plenty of driving on icy or snow-covered roads, a tread specifically designed to deal with winter conditions is preferable. Winter tires not only feature a tread pattern designed to offer grip and control on slippery surfaces, they also have a chemical composition that allows them to stay flexible in subzero temperatures that would cause ordinary tires to stiffen.
If you don’t anticipate spending a lot of time traversing roads that feature snow and ice, an all-season design will suffice. For added confidence and performance on snowy roads, winter tires are best.