I live in Southern California where the winter morning rides might start out in the high 40 degrees or low 50s. The temperature may rise ten or more degrees while I am doing my regular miles. I start off comfortable - my fingers are not starting out cold! I can shift well as I ride, and adjust my blinker lights as needed, so dexterity is not bad for a full-finger glove. Sometimes the temperatures rise ten or more degrees while I am out for two hours. My hands continue to be comfortable with the change of going into the 60 degree temps that I usually enjoy at the finish of my workout.