what is celsius and fahrenheit
Celsius and Fahrenheit are different scales to measure temperature. Celsius is the temperature scale previously known as the centigrade scale. [The name Centigrade was derived from the Latin - meaning hundred degrees.
1 A 1 Celsius change is a change of 1.8 Fahrenheits while a 1 Fahrenheit change translates to a change of 0.55 Celsius. This is one of the easiest way to convert them if you know that 0C = 32F.  100F is really really hot in the summer and it is 38C so when people talk about a 100F heatwave, it means hot.