An analysis of the daily district wise rainfall data from India Meteorological Department (IMD) for the month of September 2025 shows that there were 417 (546 in Sept 2024, 406 in Sept 2023[i], 417 in Sept 2022[ii] and 489 in Sept 2021[iii]) instances when district rainfall of a day was above 50 mm. Such high rainfall instances included 376 (438, 330, 365 and 374 in Sept 2024, Sept 2023, Sept 2022 and 2021 respectively) instances in Sept 2025 when rainfall was 50-100 mm, 34 (73, 64, 47 and 84 in Sept 2024, Sept 2023, Sept 2022 and 2021 respectively) instances in Sept 2025 when it was 100-150 mm, 4 (30, 10, 3 and 20 in Sept 2024, Sept 2023, Sept 2022 and 2021 respectively) times in Sept 2025 when it was 150-200 mm and 3 (5, 2, 2 and 11 in Sept 2024, Sept 2023, Sept 2022 and 2021 respectively) instances in Sept 2025 when rainfall in a day was above 200 mm.
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Aug 2025: High Rainfall days in India’s districts
An analysis of the daily district wise rainfall data from India Meteorological Department (IMD) for the month of Aug 2025 shows that there were 664 (717 in Aug 2024; 500 in Aug 2023; 667 in Aug 2022[i] and 431 in Aug 2021) instances when rainfall of a day in a district was above 50 mm. Such high rainfall instances included 563 (572/ 424/ 553/ 371 in Aug 2024, Aug 2023, Aug 2022 and Aug 2021 respectively) instances when rainfall was 50-100 mm; 79 (113/ 67/ 98/ 48 in Aug 2024, Aug 2023, Aug 2022 and Aug 2021 respectively) instances when it was 100-150 mm; 13 (19/ 5/ 13/ 11 in Aug 2024, Aug 2023, Aug 2022 and Aug 2021 respectively) times it was 150-200 mm; and 9 (13/ 4/ 3/ 1 in Aug 2024, Aug 2023, Aug 2022 and Aug 2021 respectively) instance when a district day rainfall was above 200 mm.
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June Aug 2023: District wise rainfall in in India’s SW Monsoon
In the just concluded month of Aug 2023, India received just 162.7 mm (263.8 mm in Aug 2022, 3.5% above the normal[i]) or 36.2% below normal rainfall against Aug normal rainfall of 254.9 mm as per India Meteorological department (IMD). In Aug 2021, the rainfall was 195.9 mm[ii], about 24.13% below normal and in Aug 2020, the rainfall was 327 mm[iii], or about 26.6% above normal.
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High Rainfall days in India’s districts in August 2022
An analysis of the daily district wise rainfall data from India Meteorological Department (IMD) for the month of Aug 2021, 3rd month of India’s South West Monsoon 2021 shows that there were 667 (much higher than 431 in Aug 2021) instances when district rainfall of a day in a district was above 50 mm. The normal monthly rainfall of India Aug is 258.2 mm and actual rainfall was 3.5% above normal at 263.8 mm[i]. Such high rainfall instances included 553 (371 in Aug 2021) instances when rainfall was 50-100 mm, 98 (48 in Aug 2021) instances when it was 100-150 mm, 13 (11) times it was 150-200 mm and 3 (1 in Aug 2021) above 200 mm. Interestingly, in June 2022[ii] and July 2022[iii] there were 462 and 809 instances when rainfall in a district was above 50 mm. The July 2022[iv] and June 2022[v] rainfall all over India was 16.8% above normal and 8% below normal respectively.
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Pre Monsoon 2022: District wise rainfall in India
In the just concluded three month pre monsoon season (March 1 to May 31, 2022) India received 130.6 mm rainfall, 1% below the normal rainfall of 131.7 mm as per the India Meteorological Department (IMD). In 2020[i] and 2021[ii] India received 158.5 mm and 155.2 mm or 20% and 18% above normal rainfall respectively. So this year, India has received much lower pre monsoon season rainfall compared to previous two years.
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High Rainfall days in India’s districts in Sept 2021
An analysis of the daily district wise rainfall data from India Meteorological Department (IMD) for the month of September 2021, the last month of India’s South West Monsoon 2021 shows that there were 489 instances when district rainfall of a day was above 50 mm. The normal monthly rainfall of India for Sept is 170.2 mm and actual rainfall was a huge 34.96% above normal at 229.7 mm[i], the actual average daily rainfall in this month was about 7.66 mm. Such high rainfall instances included 374 instances when rainfall was 50-100 mm, 84 instances when it was 100-150 mm, 20 times it was 150-200 mm and eleven times above 200 mm.
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July 2021: High Rainfall days in India’s districts
An analysis of the daily district wise rainfall data from India Meteorological Department (IMD) for the month of July 2021, the 2nd month of India’s South West Monsoon 2021 shows that there were 717 instances when district rainfall of a day was above 50 mm. [Considering that the normal monthly rainfall of India July is 285.3 mm, the average daily rainfall in this month is about 9.2 mm.] Such high rainfall instances included 595 instances when rainfall was 50-100 mm, 98 instances when it was 100-150 mm, 17 times it was 150-200 mm and 7 times above 200 mm. Interestingly, in June 2021[i] too there were seven instances when rainfall was above 200 mm, when the rainfall is supposed to be much below July rainfall. As noted in detailed article[ii], the July 2021 rainfall all over India was 6.7% below normal.
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SANDRP 