Winter tires still on? Why you shouldn't put off changing them for too long Matt HamelContent Creator Published on May. 6, 2024, 3:10 PM You may be tempted to wait until the threat of snow has passed before switching to your summer tires, but here are a few reasons why that may not be the best idea. Spring in Canada is a beautiful season when the temperatures get warmer and the flowers are in bloom, but winter often creeps back into the picture with a few more rounds of snow and cold.