What is the 7’7 rule for winter tires?
The 7 7 rule for tires provides a simple temperature guideline for timing your seasonal tire changes. Install winter tires when daily temperatures drop to 7°c (45°f) or below for seven consecutive days. Remove them in spring after seven straight days above 7°c. Thus, as temperatures start to consistently drop below 45°f, if you’re planning to use a winter tire, it’s time to change over. Accordingly, many people in the us have long used a rule of thumb of using winter or snow tires from thanksgiving to tax day – basically, november to april.You’ll Have to Replace Them Sooner Winter tires wear out fast on hot pavement. The rubber is soft (on purpose), so in summer it breaks down quicker. You’ll likely get one or two fewer seasons out of them if you leave them on all year.Nonetheless, the recommended time to switch over to Winter Tires should be late September to early November.