Annual rainfall in Samaru, Nigeria

In most of Africa, the most important climatic variable is rainfall. Rainfall is usually highly seasonal and failure of crops is normally associated with late arrival of rain or low rainfall. A better understanding of the distribution of rainfall can affect the crops that are grown and when they are planted.

The annual rainfall (in mm) in Samaru, Northern Nigeria between 1928 and 1983 will be used as an example in this section.