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How much rainfall do tropical grasslands usually receive each year?
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Grassland
A prairie grassland in Buffalo Gap National Grassland, South Dakota, U.S.
In an average year, tropical grasslands typically receive between 500 and 1,500 millimetres (20 to 60 inches) of rainfall.1
These regions are characterized by a climate that overlaps broadly with that of savannas, where the main growth patterns are closely associated with alternating wet and dry seasons. While the annual precipitation generally falls within this range, the dry season in these areas can last for as long as eight months.21