Re: What temperature does water reach its maxium density?

The maximum density of water is reached at 39 degrees Fahrenheit          
(4 degrees Celsius).   It becomes less dense at both higher and            
lower temperatures.  The density of water is approximately 62.4 pounds per 
cubic foot (approx. 1 gram per cubic centimeter).   Because the density of 
ice is less, it floats on water.   The density of ice is approximately 57.2 
pounds per cubic foot (0.917 grams per cubic centimeter).