Tire Temperatures & Tire Pressure?

[PIExpress]

When I left Monday afternoon my pressure in the front tires were 110 in the shade and the temperature was 78 degrees. Running 65 mph and driving nearly 5 hours my pressure rose to 120L & 125 on the right front and the temp was 114 degrees. The right front was on the sunny side, the rear's temps were around 110 degrees. Is this considered normal?

PIExpress

[Will Procter]

A 10 to 15% psi increase is what I typically see. I think you're right on. You get about a 2% psi increase for every 10 deg of internal air temp.

[GringoPhil]

Psi sounds good, Tires heat up under load, a trouble clue is when a tire is running much hotter,than the tire on the opposite side. Just touching with your hand or palm will warn of a tire running too hot.

[Dom Ferris]

One more reason why I like driving at night. Cooler tires, and less wind resistance, in a lot of cases, along with much less traffic.

Dom