My dh and two teenage sons will be in Maui in two weeks. I am thinking about driving up Haleakala during the day rather than at sunrise or sunset. However, I know that at any point in the day, it will be cold. The question is how cold? I really don't want to pack pants, coats, gloves or hats for this trip. I don't mind taking blankets from our condo. Will that be enough? Any advice from those that have done it in the middle of the day? Thanks.