It dont matter. It wont effect what your doing. People think im crazy but this has worked for me for 20 + yrs. Ive race in 35 Degree weather and 100+ weather its pretty much same. Just check it hot off the track and set them. You wont feel a few lbs high or low. Just have fun and be safe. Steven
One needs to control what can be controlled, and this is not the track or ambient temps. So checking hot of the track pressures and adjusting from there is the best way to approach it.