I ride motorcycles to work all year. If your hands and feet are getting cold it is most likely because you are not insulating your core well enough. Your body restricts circulation to extremeties at the first sign of hyperthermia to sacrifice them while trying to keep you alive. Keep your head and torso warm. Waterproof gloves and boots are a good plan as long as you have wicking materials like wool or poly against your skin. Remember what the mountain hikers say, "cotton kills".