"Cold" Tire Inflation.

So I understand "cold" means sitting, before you start driving on them, but I have questions.

Historically I have not always been as good as I should be about things like water levels in FLA batteries, checking tire PSI's, etc.
You know, the "out of sight, out of mind" kinda' stuff. Trying to be better and more on the ball, especially considering what I just spent on the new Toyo's

It helps that I can see the TPMS pop up on my Kenwood HU every morning.

So here's what I've been pondering lately.

I live in San Diego, and we've been having some very dry air for the last 10 days or so (as evidenced by the horrific L.A. fires)

That dry air is providing some big temperature swings. MUCH cooler temps in the morning and then warming a lot by lunch.

So I leave for work and it's FREEZNG.
Remember I live in San Diego, so by "freezing" I mean like 43º

Then by lunch it's been really nice, probably mid 70's.

So we're talking 30+ degree difference in ambient temperatures, which translates to a good 5-6+ PSI difference in my "cold" inflation pressures.

This is more extreme than usual, and I'm certainly not going to adjust pressures multiple times a day... just curious what you guys would set your pressures at in this situation.
I'm doing more driving after it's warmed up, so set 'em off that and maybe be a tiny bit underinflated for the 2 miles to work in the morning?

I know it's not a huge deal, just made me curious lately seeing the big swings.

 

Houston here, AT4.
Cold 36 PSI and hot/running PSI I regularly see 40-41 PSI, with very rarely 42 PSI.
Now, that's during cooler season here, ask, Nov - Feb/March, rest of the year, I might have it down to 34 cold and anticipate it to top out around 40 PSI running.
Again, depending on how much you tires can take.

Funny comparison, my wife insisted that her tires can only take 33 PSI.... don't ask me where that number came from, but she's mad I aired it up to 34 PSI after she complained that due to the cold TPMS went off....whatever.

 

Personally I set air pressure for the lowest it will see. Coming from an offroading mindset (peeling bead off the wheel, denting wheels from low pressure, etc) the low pressure is what matters to me. If the pressure is a bit "higher" when warmed up, who cares, you'll get better mileage

In reality we're talking a couple psi, it makes no difference. If you'd rather the tire be on the high end then air up for the cold, if you'd rather it be "perfect" during normal operation then set the pressure when you get home from work.