Look, I know it's theoretically possible for water to go into a solid phase, but AFAIK, it's never been observed outside a laboratory. <img src="/images/graemlins/smile.gif" alt="" /> Cold is 60F. They start warning people to cover plants and bring pets inside at 40F. <img src="/images/graemlins/smile.gif" alt="" /> <img src="/images/graemlins/smile.gif" alt="" />