The monsoon rainfall has arrived over the coast of Kerala on Monday on the onset date of 1st June 2020. IMD had said last Thursday the monsoon was likely to arrive in Kerala, which marks the beginning of the four-month rainy season when India receives 70% of its annual rainfall, around its normal onset date of June 1.
India defines average, or normal, rainfall as between 96 per cent and 104 per cent of a 50-year average or Long Period Average of 89 centimetres for the entire four-month season.
The Southwest Monsoon has arrived over Kerala, exactly on the day it was predicted to hit the coastal state.