After drenching much of the country with heavy rainfall, the southwest monsoon has started its retreat from parts of West Rajasthan and Kachchh, nearly a week later than usual, according to the India Meteorological Department (IMD). This withdrawal signals the end of the monsoon’s four-month journey across the mainland, which typically commences in June with its arrival in Kerala.
As on September 23, India had received a cumulative rainfall surplus of 5 per cent, with nearly all regions reporting above-average precipitation.
But rainfall caused by the southwest monsoon has fallen short of the long period average (LPA) in eastern and northeastern states, including West Bengal, Bihar, Jharkhand, Odisha, and Assam, which recorded nearly 13 per cent less precipitation. Arunachal Pradesh faced the most significant deficit at 30 per cent, followed closely by Bihar, with a shortfall of 28 per cent for the seasonal period spanning June 1 to September 23. So far (until September 23), Central India has recieved most rainfall -- a surplus of 16 per cent than the LPA.