Kerala rains: Not June 1, IMD predicts monsoon likely to reach Indian state in...

The southwest monsoon is likely to reach Kerala in the next four to five days, much earlier than the usual date of June 1, the India Meteorological Department (IMD) said on Tuesday. The weather department had earlier forecast that the monsoon would onset over Kerala by May 27. If the monsoon arrives in Kerala as expected, it will be the earliest onset over the Indian mainland since 2009, when it began on May 23, according to IMD data.

"Conditions are likely to become favourable for monsoon onset over Kerala during the next 4-5 days," the IMD said in an update on Tuesday afternoon. Normally, the southwest monsoon makes its onset over Kerala by June 1 and covers the entire country by July 8. It starts retreating from northwest India around September 17 and withdraws completely by October 15.

The monsoon had set in over the southern state on May 30 last year; June 8 in 2023; May 29 in 2022; June 3 in 2021; June 1 in 2020; June 8 in 2019; and May 29 in 2018.

The IMD had in April forecast above-normal cumulative rainfall in the 2025 monsoon season, ruling out the possibility of El Niño conditions, which are associated with below-normal rainfall in the Indian subcontinent.

According to the IMD, rainfall between 96 percent and 104 percent of the 50-year average of 87 cm is considered 'normal'.

Rainfall less than 90 percent of the long-period average is considered 'deficient'; between 90 percent and 95 percent is 'below normal'; between 105 percent and 110 percent is 'above normal'; and more than 110 percent is considered 'excess' precipitation.

The monsoon is crucial for India’s agriculture sector, which supports the livelihood of about 42.3 percent of the population and contributes 18.2 percent to the country’s GDP. It is also vital for replenishing reservoirs critical for drinking water and power generation across the country.

(Except for the headline, this story has not been edited by DNA staff and is published from PTI)

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