All tires, by their very nature, have to find a balance between a few contradictory extremes. Tires with lots of grip generally wear much faster, and tires that perform well in warm dry weather do not generally do so in cold or snow.
All-weather tires can stay on your car year-round and are also designed with winter-driving conditions in mind. The tread pattern on all-weather tires was created with high-tech compounds that can handle snow, slush and ice, just as they can handle warm, dry conditions. All-weather tires are ideal for unpredictable climates.