I don't believe warped rotors are caused by external ambient temperature. I believe they are caused by heat buildup from heavy braking. When you resurface a rotor, you remove material that will make the rotor thinner, making the rotor more susceptible to further warping. I believe most rotors can only be resurfaced once or twice before replacement. Perhaps Honda, or some third party vendor, have heavier duty rotors that will resist warping.
Good Luck,
Mike
Good Luck,
Mike