Rainfall in India is highly uneven over a period of time in a year. As we move from East to West in Northern plains, we observe that in central India rainfall decreases. In peninsular region, India’s rainfall decreases from coast to interior parts.
In North-East India, the rainfall increases with altitude. India is the unique example of rainfall distribution with marked contrasts. Both, one of the rainiest and driest places of the world are located in India itself.
1. Areas of Heavy Rainfall (more than 200 cm)
Maximum rainfall in India occurs in the western coast, sub Himalayan regions of north-east and Garo, Khasi and Jaintia hills of Meghalaya.
2. Area of Moderate Rainfall (100-200 cm)
Areas receiving 100 to 200 cm rainfall in India include some parts of the Western Ghats, West Bengal, Odisha and Bihar and many states.
3. Areas of Low Rainfall (60 to 100 cm)
This is the region of low rainfall, which includes parts of Uttar Pradesh, Rajasthan, interier deccan plateau.
4. Areas of Inadequate Rainfall (Less than 60 cm)
This is region of scanty rainfall. The western part of Rajasthan and Gujarat, Laddakh and south central part receives a rainfall of less than 20 cm.