Distribution of Annual Rainfall

The average annual rainfall in India is about 125 cm; however there is large spatial variation in actual rainfall due to relief or topography, distance from sea etc. This can be better understood in Figure.

Category Region
Areas of High Rainfall (>200cm) Areas along the west coast, on the Western Ghats, sub-Himalayan areas in the north east and the hills of Meghalaya, Brahmaputra valley and the adjoining hills
Areas of Medium Rainfall (100-200cm) southern parts of Gujarat, east Tamil Nadu, north eastern Peninsula covering Odisha, Jharkhand, Bihar, eastern Madhya Pradesh, northern Ganga plain along the sub-Himalayas and the Cachar Valley and Manipur.
Areas of Low Rainfall (50-100cm) Western Uttar Pradesh, Delhi, Haryana, Punjab, Jammu and Kashmir, eastern Rajasthan, Gujarat and Deccan Plateau
Areas of Inadequate Rainfall (<50cm) Parts of the Peninsula, especially in Andhra Pradesh, Karnataka and Maharashtra, Ladakh and most of western Rajasthan

Indian Monsoon