Bhubaneswar: The southwest monsoon seasonal rainfall over the country as a whole is most likely to be normal, stated the India Meteorological Department (IMD) on Thursday. The new updated rainfall normal has been prepared based on data of 1971-2020 and will replace the existing rainfall normal based on 1961- 2010 with effect from the southwest monsoon season 2022.
The new all-India rainfall normal computed based on data of 1971-2020 for the southwest monsoon season (June-September) is 868.6 mm. It has been computed using rainfall data from 4132 raingauge stations distributed over the country representing 803 districts of India.
Based on 1971-2020 data, southwest monsoon rainfall over India contributes 74.9% to Annual Rainfall. June, July, August, and September contribute 19.1%, 32.3%, 29.4% & 19.3% respectively to total southwest monsoon rainfall.
The rainfall is expected to be mostly uniformly distributed. Normal to above normal seasonal rainfall is most likely over many areas of northern parts of Peninsular India and adjoining Central India, over foothills of the Himalayas, and some parts of Northwest India.
Below normal rainfall is likely over many areas of Northeast India, some areas of Northwest India, and southern parts of the South Peninsula.
