In effect, poles bend easier when its warmer. As for the return value, I am not sure. I'm going to have to check up on that. The difference is pretty small. Going from Ohio's freezing rain to floridas draining sun, you might vault 5 to 10 pounds higher.
Humidity is also a factor.
But hey, if you don't have your head together, and are not mentaly there, it doesn't matter what stick you use. It is almost all mental On the matter of warming up a pole. I use an extra shirt and rub down along the sailpiece. This little bit of friction does warm the pole up, tempriture wise. The only reason I would do that is to keep it from breaking.