When it comes to describing something as "normal annual", there are plenty of synonyms that can be used to give the same meaning. Some possible alternatives include "typical yearly", "average annual", "standard yearly", "usual annual", "ordinary yearly", and "regular annual". These synonyms all convey the idea of something that happens on a yearly basis and is expected or common. Using synonyms can help to keep your writing fresh and avoid repetition, while still communicating the same essential ideas. So whether you're describing a normal annual event or a typical yearly occurrence, there are plenty of ways to state your meaning with clarity and precision.