To avoid confusion, here is a scale showing how Fahrenheit and Centigrade compare. (Key thing to remember is, water freezes at Zero centigrade and 32 Fahrenheit.)

Yeah, and I know they keep on calling Centigrade "Celius" these days - but that's a nonsense, because, when Celsius invented his scale, he split the temperatures between water freezing and water boiling into 100 degrees all right - but he called freezing point "100 degrees", and boiling point "Zero degrees". Which ain't quite the same thing.