Between the years 1989 and 2018, 5 states — UP, Bihar, West Bengal, Meghalaya, and Nagaland — have shown immense decreasing trends in Southwest Monsoon rainfall, according to an India Meteorological Department (IMD) report cited by the government on Wednesday in Lok Sabha.
Dr. Jitendra Singh who is the Minister of State (Independent Charge) for Science and Technology and Earth Sciences, was responding to an unstarred question by Parthibans R and Vijayakumar (aka Vijay Vasanth). From the report: “The annual rainfall over these five states, along with Arunachal Pradesh and Himachal Pradesh, also show significant decreasing trends. A significant increasing trend in the frequency of heavy rainfall days has been observed over Saurashtra and Kutch, southeastern Rajasthan, northern Tamil Nadu, Andhra Pradesh, and adjoining areas of southwest Odisha, and parts of many other states.”
The IMD report that was released on 30th March 2020, showed monsoon rainfall variability and changes of 29 states and Union Territories at both state and district levels, using the IMD’s observational data of the 30-year period.
The minister even tabled Southwest Monsoon patterns for this year, 2021. This covered 37 states and Union Territories and showed the period mainly between June 1 and October 31, 2021