If you’ve ever wondered when should you switch to winter tires, the answer is a bit of both a rule of thumb and, depending where you live, an actual law.
The 7°C rule
Regardless of where you live, the real trigger for switching isn’t a date on the calendar, it’s temperature. Once daytime temperatures start regularly dropping below 7°C, all-season tire rubber begins to stiffen and lose grip. That’s the point where winter tires meaningfully outperform all-season ones, even before the snow actually shows up.
When Should You Switch to Winter Tires by Law? What Each Province Requires
Quebec: winter tires are legally required on passenger vehicles from December 1 to March 15 inclusive, enforced under the province’s Highway Safety Code, with fines from $200 to $300 for non-compliance. Confirmed on the SAAQ’s website.
British Columbia: winter tires or chains are required on most designated highways from October 1 to April 30. A shorter window, October 1 to March 31, applies on select mountain-pass routes not part of a through-route. Full details on the Government of British Columbia’s site.
Most other provinces: no legal requirement, but insurance guidance and general road safety recommendations still point to the same 7°C rule.
Making the swap once you’ve decided
Whichever answer applies to you, the actual job is the same either way, and it’s a lot easier with the right tool doing the lifting and aligning for you. The Jack and Jill trolley works alongside your floor jack to take the hardest part of the swap, managing the tire itself, off your hands.
Ready to make the switch? Our step-by-step guide walks through the process, or head to the shop to see how the trolley works.
Sources: Société de l’assurance automobile du Québec (saaq.gouv.qc.ca) and Government of British Columbia (gov.bc.ca).
