21ºC for us non-Americans Funny you said that:) "By the end of the 20th century, Fahrenheit was only used as the official temperature scale in the United State

21ºC for us non-Americans Funny you said that:) "By the end of the 20th century, Fahrenheit was only used as the official temperature scale in the United States (including its unincorporated territories), its freely associated states in the Western Pacific (Palau, the Federated States of Micronesia and the Marshall Islands), the Bahamas, Belize, and the Cayman Islands." [1]: https://en.wikipedia.org/wiki/Fahrenheit https://en.wikipedia.org/wiki/Fahrenheit