Summer Tyres and a Winter Tyres differ in various ways so this information explains the differences.
Summer or Winter? - Driving your car in different temperature zones can affect its overall performance. This is especially true for tires. Some tires are specially designed to travel on hot roads like those found in the Mojave desert in summer, just as there are different wheels for handling snow in North Dakota. This article
Summer Tires - Tire rubber can have differing effects when it comes into contact with warm ground. Summer, or high-performance, tires, have softer rubber than winter, or all-season, tires. They have a certain viscosity to them that allows a better grip on the road. Summer tires also come with special tread designed to get better traction on rain-soaked roads. The tread pattern on summer tires is made to channel the water up and away from the car. Although they can provide better gripping and smoother rides, summer tires also tend to wear out faster.