Here is the link for the Edmunds test. Next is a short statement as to what Discount Tire Direct has to say.

https://www.edmunds.com/car-reviews/...vs-summer.html

Winter tires are far superior to all-season tires when it comes to driving in dry, wet, snow, sleet, and icy winter conditions. Summer tires excel in both dry and wet warm weather conditions, but become too stiff in cold weather to be able to provide reliable performance. Regardless of road conditions, once temperatures drop below 45 degrees, winter tires provide the most reliable performance over any all-season or summer tire. Winter tires are so specialized for winter that they do not perform as well in warm, dry conditions, and will likely wear very rapidly. It is recommended that you install summer or all-season tires as soon as the weather is consistently above 45 degrees.