i would put little faith in being able to use petfish to help determine how wild fish are acting. mainly because just today, i hit up 2 different lakes, one right after the other, similar water conditions, and had totally different reactions from the fish. im guessing it was mainly influenced different amounts of fishing pressure, but at one lake, i got four catfish and that was it. blugill and panfish were totally shut down. at the second lake, the bluegill were hitting great and not one catfish.
also, my fish are in a tank inside my house so i doubt their climate is going to be in anyway similar to the climate in the lakes.