your not the only one Iron Cross, out here in the desert its an every day thing.
its not only the fuel that is responsible its also the air going down the carb.
its just like tuning a (old) carb on a hot rod. the hotter the air temp the leaner the mix,cold air=more air=more fuel needs.
hot air=less air=less fuel needs for a correct mix
anytime you go from 70deg to 100deg your mix is gonna be way off so just get an idea where your settings are and you have a good starting point each day, whatever time it is.just adjust your idle first.