Which is colder — 30 degrees Celsius or 30 degrees Centigrade? Confusing, right? They both start with the letter “C”. Both references actually indicate the same temperature. The Centigrade scale was formally changed to Celsius in 1948.

Which is colder — 30 degrees Celsius or 30 degrees Centigrade? Confusing, right? They both start with the letter “C”. Both references actually indicate the same temperature. The Centigrade scale was formally changed to Celsius in 1948.