Assam: 84% less than normal rain in South Salmara

10 districts received ‘large deficient’ and 17 ‘deficient’ rainfall

Staff Reporter

Guwahati: In terms of ‘large deficient’ rainfall, the worst-affected district in the state is South Salmara-Mankachar, with 84% less than normal rainfall recorded in this monsoon till July 26, 2025. The drought-like situation continues to persist in a number of districts. As of July 26, a total of 10 districts are considered to have received ‘large deficient’ rainfall.

In the context of the India Meteorological Department (IMD), ‘large deficient’ rainfall refers to a situation where the actual rainfall received in a specific region is significantly lower than the normal or expected rainfall for that area, specifically 60% to 99% below normal.

According to IMD’s Regional Meteorological Centre (RMC), Guwahati, the district of South Salmara-Mankachar received 194 mm, against the normal of 1207.6 mm of rainfall, in the period from June 1 to July 25, which is 84% less than normal rainfall. After South Salmara-Mankachar, the second-worst affected district in terms of rainfall is Darrang, with 79% less than normal rainfall during the same period. Darrang received a total of 157.1 mm, against the normal of 735.7 mm of rainfall. The other districts in the ‘large deficient’ category are Bajali (72% less), Barpeta (73%), Bongaigaon (63%), Chirang (60%), Dhemaji (64%), Dhubri (65%), Tamulpur (68%), and Nalbari (65% less than normal rainfall).

In the period from June 1 to July 25, as many as 17 districts are in the ‘deficient’ rainfall category, including the district of Kamrup (Metro). The district received 242.9 mm of rainfall, against the normal of 575.6 mm, which is 58% less than normal rainfall.

In the context of the India Meteorological Department (IMD), “deficient” rainfall, also referred to as “below normal” or “deficient,” is a category used to classify rainfall amounts that are significantly lower than the long-period average (LPA). Specifically, rainfall is considered deficient when it falls within the range of -20% to -59% of the LPA.

Of the state’s 35 districts, only 6 districts received normal rainfall in the period from June 1 to July 25 this monsoon. The districts are Cachar, Hailakandi, Hojai, Jorhat, Karbi Anglong, and Morigaon.

After a short dry spell, rainfall was recorded at several places in the state.

An RMC Guwahati report states that during the past 24 hours, the places receiving rainfall of 5 cm or more are Chauldhowaghat (Lakhimpur district) 21 cm, N.Lakhimpur/Lilabari (Lakhimpur district) 15 cm, Guwahati Ap (Kamrup Metropolitan district) 10 cm, Guwahati_aws (Kamrup Metropolitan district) 9 cm, Tamulpur (Tamulpur district) 9 cm, Mushalpur_aws (Baksa district) 9 cm, Bhumuraguri (Sonitpur district) 7 cm, Tezpur (Sonitpur district) 7 cm, Mazbat Arg (Udalguri district) 7 cm, Ranganadi Nt Xing (Lakhimpur district) 5 cm, Sonari_arg (Charaideo district) 5 cm, Dhemaji (Dhemaji district) 5 cm, Dhekiajuli Arg (Sonitpur district) 5 cm, and Majbat (Udalguri district) 5 cm.

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