The weather bulletins tend to use centigrade but they usually say what it is in fahrenheit too!
What I've noticed is that we prefer centigrade when the weather is cold and fahrenheit when its hot
I must admit that if I see one of you saying the temperature is **fahrenheit,I just pop out and look at the equivalent on my garden thermometer!
Don't forget,we are a nation of weather addicts,we have a saying"if you don't like the weather,don't worry,it will change again in 10 minutes"
(That converter is great,Stargazer!)