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Distribution of Rainfall in India

Geography

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Rainfall in India

Owing to the nature of monsoons, the annual rainfall is highly variable from year to year. Variability is high in the regions of low rainfall such as parts of Rajasthan, Gujarat and the leeward side of the Western Ghats. As such,while areas of high rainfall are liable to be affected by floods, areas of low rainfall are drought-prone.

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Distribution of rainfall

The western coast and northeastern India receive over about 400 cm of rainfall annually. However, it is less than 60 cm in western Rajasthan and adjoining parts of Gujarat, Haryana and Punjab. Rainfall is equally low in the interior of the Deccan plateau, and east of the Sahyadris.

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Heavy rainfall region in India

Early in the season, the wind ward side of the Western Ghats receives very heavy rainfall, more than 250 cm. The maximum rainfall of this season is received in the north-eastern part of the country. Mawsynram in the southern ranges of the Khasi Hills receives the highest average rainfall in the world.

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Moderate rainfall region in India

Regions with 100 to 200 cm of rainfall include major parts of Bihar, West Bengal, Orissa, Madhya Pradesh, Andhra Pradesh, and parts of other states. These areas fall under the Moderate Rainfall Region.

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Low rainfall regions in India

Regions having low rainfall (50 to 100 cm) include parts Maharashtra, Gujarat, Karnataka, Tamil Nadu, Andhra Pradesh, Madhya Pradesh, Punjab, Haryana and Western Uttar Pradesh. 

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Scanty rainfall regions in India

Regions having scanty rainfall (50 cm) include desert and semi-desert parts of Rajasthan, Gujarat and adjoining regions.