What does average rainfall mean?

Answer 1

If, for example, the rainfall is recorded once every week for a whole year, and the recorded results added together, the average would be the total divided by the number of weeks in a year. This will give the average amount of rain that fell during the whole of the year.

Answer 2

Average rainfall....is the total amount of rain that fall in a specific area - measured over a set period of time - then the total is divided by the number of days.