I washed the car last week when it was a chilly 58 degrees. I wore sweat pants, a sweatshirt and wore socks with my Keen sandals. Using warm water from the kitchen sink helped keep my hands warm. Brrr!
Fortunately, for the next week it's supposed to be sunny with temps in the mid 60's so I can go back to wearing shorts and a t-shirt when I wash the car.