If blowing, anchor above the PB's, as many are known to slip. Take your time, assess twice, and drop once. In shallow conditions, check swinging space depth. Use a chain hook for quiet and safety. Enjoy the privacy, quiet, gentle motion, and cost of a good anchoring.
All materials behave in an organized fashion relating to heat.
They expand when hot and contract when cool. It expands when cooled below 39 degrees F. And a good thing too, if water behaved like any other material it would shrink when frozen, becoming denser than the warmer liquid water and SINK . It would not take long to fill the body of water with solid ice where it would not have much of a chance to melt due to lack of access to warm air and sunlight. If water were thicker, our ships would need a lot more horsepower to propel them through it. And sail craft just would not work.