[G.A.S.]

yes and no.
I know, that helps right.
Yes tire pressure is affected by temp.
How to correct the issue. I live in northeast michigan and what I do is check my tire pressure every week. It never varies more than 3 psi. and that is ok with me. I am talking about extream changes in temp to. Up here it might be 13deg. right now, but tomorow it might be 50 so if I get a big change in the temp I do check my pressure expecially if I am traveling.
a 5 pis fluxuation in pressure is acceptable to tire manufactuers but it sure can mess up a good set of tires.
Low pressure is worse than overinflation so 32-37 would be good.