Monsoon · Rainfall

High Rainfall days in India’s districts in July 2022

For July 2022, an analysis of the daily district wise rainfall data from India Meteorological Department (IMD) shows that there were 809 (717 in July 2021) 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 663 (595 in July 2021) instances when rainfall was 50-100 mm, 107 (98 in July 2021) instances when it was 100-150 mm, 28 (17 in July 2021) times it was 150-200 mm and 16 (7 in July 2021) times above 200 mm. Interestingly, in June 2022[i] there were twenty 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 2022 rainfall all over India was 16.8% above normal.

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Monsoon · Rainfall

June July 2022: District wise rainfall in India’s SW Monsoon

In the just concluded month of July 2022, the second month of India’s South West 2022 monsoon, India received 327.7 mm rainfall, 16.8% above the normal July rainfall of 280.5 mm as per India Meteorological department. In July 2021, the rainfall was 266.1 mm[i], about 6.7% below normal and  in July 2020, the rainfall was 257.1 mm[ii], or about 9.9% below normal.

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Monsoon · Rainfall

June 2022: High Rainfall district days in India’s SW Monsoon

An analysis of the daily district wise rainfall data from India Meteorological Department (IMD) for the month of June 2022, the first month of India’s South West Monsoon 2022 shows that there were 462 instances (442 in June 2021) when district rainfall of a day was above 50 mm. This is high considering that the rainfall of India in June 2022 was 152.3 mm[i], or daily average rainfall is about 5 mm. The high rainfall instances in June 2022 included 339 (371 in June 2021) instances when rainfall was 50-100 mm, 68 instances (59 in June 2021) when it was 100-150 mm, 26 (5 times in June 2021) times it was 150-200 mm and 29 (7 times in June 2021) times above 200 mm.

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Monsoon · Rainfall

June 2022: District wise rainfall in India’s SW Monsoon

In the just concluded month June 2022, the first month of India’s South West 2022 monsoon, India received 152.3 mm rainfall, 8% below the normal June rainfall of 165.3 mm as per India Meteorological department. In June 2021, the rainfall was 182.9 mm[i], about 11% above normal and  in June 2020, the rainfall was 196.9 mm, or about 18% above normal and in June 2019 it was 33% below normal.

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Rainfall

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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Rainfall

Normal Rains Forecast for India’s SW Monsoon 2022

India Meteorological Department (IMD) has in their first forecast for India’s crucial South West Monsoon (June-Sept) 2022 has forecast[i] that India will receive 99% of Long Period Average (LPA) rain with a model error of +/- 5%. This means that IMD has forecast on April 14, 2022 that India is likely to get normal rainfall (96% to 104% of LPA) rains for the fourth consecutive year. IMD says that currently La Nina conditions are prevailing and are likely to continue during the monsoon.

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Rainfall

District wise Winter 2022 Rainfall in India

In the just concluded Winter Season 2022 (Jan 1 2022 to Feb 28 2022), as per India Meteorological Department (IMD), India received 44% above Normal Rainfall (it was 32% below normal rainfall in winter 2021[i]. This is coming on top of almost normal (99.32% of normal rainfall) in SW Monsoon 2021[ii] and 43.54% above normal rainfall in Post Monsoon season 2021[iii].

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Rainfall

Post Monsoon 2021: District wise Rainfall in India

According to India Meteorological Department (IMD), during the just concluded Post Monsoon Rainfall for 2021, that included rainfall during Oct-Dec months, India received 177.7 mm rainfall, 43.54% above normal rainfall of 123.8 mm. In the same period last year, India received 124.6 mm rainfall, 0.64% above the normal rainfall. As per IMD[i] definition, the rainfall was in surplus category.

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Monsoon · Rainfall

High Rainfall days in India’s districts in SW Monsoon 2021

An analysis of the daily district wise rainfall data from India Meteorological Department (IMD) for India’s South West Monsoon 2021 shows that there were 2079 instances when a district rainfall of a day was above 50 mm. Such high rainfall instances included 1712 instances when rainfall was 50-100 mm, 288 instances when it was 100-150 mm, 53 times it was 150-200 mm and 26 times above 200 mm. Out of 694 districts of India, 527 districts or, about 76% of the districts experienced such high rainfall days during SW monsoon 2021.

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Monsoon · Rainfall

Heavy Rainfall in India in Oct-Nov 2021

India has seen rather heavy rainfall in October and November 2021, with October All India Rainfall being 33% above normal and November rainfall being record breaking 86% above normal. The combined Oct + Nov Rainfall was 48% above normal, and by Dec 7, as we write this, it is already 53% above normal for the period from Oct 1 to Dec 7, 2021.

While lingering South West Monsoon brought large part of the excess rainfall in first half of October, the unusually active North East Monsoon with continuous supply of moisture from Bay of Bengal has been the main reason for the high rainfall since late October. The onset of La Nina has also contributed to this and with La Nina forecast to remain in place till March 2022, we are in for continued wet spell in South India, it seems. IMD has already forecast above normal rainfall in South Karnataka during Dec 2021 to Feb 2022.

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