Allergy Headache Management and Treatment. 1  For all headaches, identify triggers and avoid them. 2  For relief of sinus headaches, make changes to your home and to your behavior. 3  Control some headaches with nonprescription (over-the-counter) medications.  See an allergist for prescription medications, which may be more effective.
At temperatures below 32 Â° F (0 Â° C), liquid water freezes; 32 Â° F (0 Â° C) is the freezing point of water. At temperatures above 32 Â° F (0 Â° C), pure water ice melts and changes state from a solid to a liquid (water); 32 Â° F (0 Â° C) is the melting point.
Quick Answer. Fresh water freezes at 32 degrees Fahrenheit, which is 0 degrees Celsius and 273.15 degrees on the Kelvin scale. Seawater freezes at a slightly lower temperature than fresh water due to its high salt content.