Assuming you mean "how many degrees is considered to be below freezing", the answer is 32 Fahrenheit or 0 celcius.
A temperature under the freezing point.
The freezing point of ice is 0 degrees Celsius (32 degrees Fahrenheit). It can vary under different conditions such as pressure and impurities in the water, which can lower the freezing point.
Regelation refers to melting under pressure as well as freezing under reduced pressure.
89F is 32.8C, which is 9.8 degrees above freezing (0C).
The freezing point of fresh water under normal conditions.
Water freezes at 32 Fahrenheit under standard pressure.
The temperature change is 32 degrees Fahrenheit, as freezing is at 32 degrees Fahrenheit.
A teperature under 0 oC.
When unsaturated vapour is cooled down under freezing point
Yes, water can freeze instantly under certain conditions, such as when it is supercooled below its freezing point without any disturbance or nucleation sites to initiate the freezing process.
There is no object that never freezes, as freezing is a natural phenomenon that occurs when an object's temperature drops below its freezing point. However, some substances, such as helium, have extremely low freezing points that make them resistant to freezing under normal conditions.
The freezing point of water under normal atmospheric conditions.