Nope, fairly sure it was never mentioned in school. But in any case, that's a while ago now and I don't think I've ever had a need to use Fahrenheit except for reading US articles where they almost invariably also put Celsius.

I know that 100°F is something close to 37°C, and I'll probably not forget 32°F for a while now. But it's fairly useless trivia as far as every day life goes.