Tires/pressures/temperatures

[folivier]

I haven't found anyone who can answer that question. I usually don't add air on a cold morning if I know the ambient temperature will increase while I'm driving and all of my tires are the same. What is worse: low pressure on a cold morning? Or high pressure once it warms up?
Your tires will warm up in a few miles and your pressure will warm up.
The same thing occurs if you check your tires and the sun is shining on one side. There can be a 5 psi difference between the sunny side and shaded side.