John, just had a thumb through of the performance section of a C207 manual and I don't see anything that constitutes a temperature limitation. The only charts that come close is the take off, landing and rate of climb which are only tabulated to 40°C against pressure altitude, but all of those can be addressed by means of calculating the density altitude, maybe I'm missing something, I'd assume all our lighty manuals would be similar. Some aircraft do have temperature limitations listed in the limitations section, my workaday FAR 29 type was -34°C to ISA plus 37°C not to exceed 49°C.