Has winter arrived in your part of the world yet? In my area we usually get our first big snowstorm on or around the 15th of November, but so far this year we’re still having well-above freezing temperatures with no snow in sight! The inevitable is going to happen sooner or later, but my usual concern when the snow starts to fly is: when do I change from my summer tires to my winter tires? I keep a record of all the work done on my car, from oil changes to brake jobs to tire changes. That’s why I know that the middle of November is my signal to change to winter tires.