Here you can see the difference between Celsius and Fahrenheit

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Celsius

Swedish astronomer who devised the centigrade thermometer (1701-1744)

Temperature measurement on the Celsius scale (where water freezes at zero degrees

and boils at 100 degrees; unit divisions are equal to the kelvin, with zero kelvin being -273.15 C)

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Fahrenheit

German physicist who invented the mercury thermometer

and developed the scale of temperature that bears his name (1686-1736)

Of or relating to a temperature scale proposed by the inventor of the mercury thermometer

"water freezes at 32 degrees Fahrenheit under normal conditions"