Copying this post I made elsewhere recently:

I used to say this. But being a curious person, and one willing to test my own hypothesis, I decided to learn Celsius. Like, spend enough time with it to intuitively understand it, so that I could compare the two.

Almost six years later, I haven’t switched back. I much prefer Celsius for weather. Having 0° at freezing is far more useful than I suspected it would be, and having less granular degrees gives them more meaning, which makes understanding them easier.

Seriously, I struggle to express just how useful below-freezing temperatures being negative is. -5°C means so much more to me than 23°F, and that’s after thirty years of using Fahrenheit and only six of using Celsius.