Celsius makes weather so much easier; freezing point of water is the one most important temperature for weather conditions, what kind of precipitation and surface conditions you can have. Having it as the reference point for temperature just makes so much sense. With celsius, you can understand the general weather from a single glance. Negative numbers? Ice and snow. Positive numbers? Rain and mud. Plan accordingly. And the general comfort zones are all at around 10° steps wich makes everything nice and round.

Fahrenheit on the other hand has the zero at some completely nonsensical reference point that has no relation to what weather conditions are possible.