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How much rainfall does wheat usually need to grow successfully?

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A large red and yellow combine harvester cuts through a golden wheat field, leaving neat rows of harvested grain behind. — Cereal farming Combine harvesting wheat.

For successful wheat cultivation, an annual rainfall of at least 254 mm (10 inches) is generally considered the minimum requirement. While wheat is adaptable to a wide range of climates and soils, it is best suited to temperate regions that receive between 30 and 90 cm (12 and 36 inches) of rainfall.12