I have to disagree with spudart (who claims that 57 degrees is the perfect temperature!), and proclaim that 62 degrees is the perfect temperature.
57 is nice and all, but if there's any breeze, it's just plain chilly. When it's 62 degrees though, a small to moderate breeze feels GREAT.
If you happen to live by a lake or other large body of water, you're probably thinking that both 57 and 62 are CRAAAAZY temperatures to claim as "ideal". You're wrong. You are wrong, you lake dwelling person.