Seven years ago, the cumulative rainfall across India during the June-September southwest monsoon season dropped below 90 per cent of the Long Period Average (LPA) to end at 87.3 per cent.
Thus, 2015 was officially classified as a “deficient” monsoon year.
Since then, there have been no low-rainfall years. On the contrary, the last four years —2019, 2020, 2021 and 2022 — were rainfall-surplus years.
However, 2023 could turn out differently as after a gap of four years, the dreaded El Niño phenomenon is set to strike the southwest monsoon season.
To what extent it will cause rainfall deficiency and