Have you seen the all-too-familiar "low tire pressure" light appear on your dashboard? It's certainly that time of year!
Why does that always seem to happen in the fall? Its because of the colder temperatures.
When the temperature drops, air molecules move closer together. Warm air contains more energy and the molecules are more excited, meaning they bounce around more and take up more space. However when we cool the air, those molecules relax slightly making them bounce around less and take us less space. So the same amount of air can be in your time, but the pounds per square inch, PSI, or general tire pressure decreases.
For every 10 degree drop in air temperature, we will see a drop of 1-2 PSI.
As we get closer to this weekend, those morning low temperatures will continue to get lower and lower. So if you see that tire pressure light of doom, now you know why it magically appeared! It's not a fluke, you just need to add a little more air to those Michelins.
Got a weather question you want answered? Email ganello@waaytv.com!
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