When should I switch from summer to winter tires this year?
I want to change my car's tires at the right time, but not too early and not too late. Are there any specific deadlines or temperature guidelines I should follow?
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What region are you in - that's really the deciding factor, but I want to clarify something from the previous answers: the +7 degrees guideline is just an average, but what I actually look at is cold stability, not just one number. If it's still plus five during the day but minus ten at night and it stays like that for a week or two, then it's time to switch: summer tires get hard in the cold and don't grip the road as well. Waiting until it's consistently below freezing around the clock is risky, because the first frosts are often tricky, especially at night.
Where do you live? It mostly depends on the climate in your region. The general rule is to switch to winter tires when the average daily temperature consistently stays below +7 degrees, usually October-November depending on your latitude. Don't wait until the first snow though - you need to change your tires in advance, because asphalt that suddenly gets cold is already dangerous, and summer tires become hard and lose grip even before any precipitation.
In the middle belt, I usually switch to winter tires in late October, when it's already minus at night and rarely gets above five degrees during the day. The +7 degrees benchmark is actually a working marker, but the main thing is to look at the average daily temperature, not the unpredictable fluctuations. If it stays cold for a week - time to change them, don't put it off, because summer tires get hard in frost and just won't grip the road.
I switch to winter tires around late October, when night frosts become regular. The +7 degrees benchmark works, but honestly I'm more focused on making sure there's no warm spell coming back - if you switch over early, you end up driving on winter tires in warm weather for a week or two, which isn't great for them.
My car stays in a region with unpredictable fall weather, so I rely more on what's actually happening outside than on the calendar. I usually switch over sometime at the end of October or early November, when I see that night temperatures are consistently below freezing and daytime highs rarely go above +5 degrees. The main thing is not to get caught timing it wrong when there's a warm spell coming, because then you'd have to change them again.
The +7 degree mark that people mention above is actually a sensible threshold, but I don't go by individual warm days - I look for cold that's stable and consistent. Once I understand that the frosts are here to stay and there's no warm stretch in the forecast, I don't wait around, I just switch. Better to be a week early on summer tires than to hit black ice on the road and realize I've been dragging my feet.
The key thing is not to panic in September, even if there's a frosty day here and there. That's usually just weather being moody. But once the forecast shows solid cold for a week or two ahead, that's when you definitely need to head to the shop.
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