What is freshwater's boiling point?
Pure water boils at 100 degrees Centigrade/Celsius or 212 Fahrenheit or 373.15 Kelvin. I presume that your 'freshwater' is pure. Small amounts of added minerals will tend to raise the boiling point somewhat.
I am not sure but may be it is because none of the substances have a fixed boiling point. The substance starts changing its state from liquid to gas before the mentioned boiling point . For example Boiling point of H2O is 100.but it change it changes its state before it.Therefore there are boiling range not boiling point.