Monsoon · Rainfall

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.

Continue reading “July 2021: High Rainfall days in India’s districts”
Monsoon · Rainfall

June July 2021 District Wise SW Monsoon Rainfall in India

In the just concluded month of July 2021, India received 266.1 mm rainfall, that is 6.73% below normal July rainfall of 285.3 mm, as per India Meteorological Department (IMD). This is in contrast with June 2021 rainfall, that was almost 11% surplus over Normal rainfall. Not only that surplus has been wiped out by the July 2021 deficit, the overall June July 2021 rainfall now is 449 mm, or about 0.7% below normal rainfall of 452.2 mm, as per IMD.

Continue reading “June July 2021 District Wise SW Monsoon Rainfall in India”
Monsoon · Rainfall

High Rainfall days in India’s districts in June 2021

An analysis of the daily district wise rainfall data from India Meteorological Department (IMD) for the month of June 2021, the first month of India’s South West Monsoon 2021 shows that there were 442 instances when district rainfall of a day was above 50 mm, which is high considering that the normal monthly rainfall of India in this month is 166.9 mm, or daily average rainfall is about 5.6 mm. Such high rainfall instances included 371 instances when rainfall was 50-100 mm, 59 instances when it was 100-150 mm, 5 times it was 150-200 mm and 7 times above 200 mm. As noted in detailed article, the June 2021 rainfall all over India was 11% above normal.

Continue reading “High Rainfall days in India’s districts in June 2021”
Monsoon · Rainfall

June 2021: District wise rainfall in India’s SW Monsoon

In the just concluded June 2021, the first month of India’s South West 2021 monsoon, India received 182.9 mm rainfall, 10.96% or about 11% more than the normal June rainfall of 166.9 mm as per India Meteorological department. In June 2020, the rainfall was 196.9 mm, or about 18% above normal and in June 2019 it was 33% below normal.

Continue reading “June 2021: District wise rainfall in India’s SW Monsoon”
Monsoon · Rainfall · River Basin

IMD continues callous reporting of River Wise Rainfall in Monsoon 2020

This rarely gets reported in media, but IMD (India Meteorological Department) also provides river basin wise rainfall figures. Here is an overview of the river basin wise rainfall during SW Monsoon 2020 (June-Sept 2020, though the monsoon withdrew much later), like the way we have been doing for the last three years[i]. Our earlier monsoon 2020 articles provided district wise figures for rainfall in June 2020[ii], June-July 2020[iii], June-Aug 2020[iv] and June Sept 2020[v].

Continue reading “IMD continues callous reporting of River Wise Rainfall in Monsoon 2020”
Monsoon · Rainfall

SW Monsoon 2020: District Wise Rainfall

India received 957.6 mm rainfall in Just concluded South West Monsoon 2020, during the scheduled 4 month monsoon from June 1 to Sept 30, 2020. This is 8.74% above normal monsoon rainfall of 880.6 as per India Meteorological Department (IMD). This is considered ABOVE NORMAL rainfall, since rainfall is in the range 4-10% above Normal rainfall. This sounds good at national level, but the situation on ground could be very different, if we see the rainfall across the country.

It is noteworthy as per even IMD, monsoon has not yet withdrawn from most parts of the country. But IMD closes its monsoon rainfall account at 0830 hours on Sept 30, so all rainfall after that hour has to be counted in “Post Monsoon” rainfall book, even though the rainfall is very much part of monsoon as per IMD.

Continue reading “SW Monsoon 2020: District Wise Rainfall”
Indian Meteorological Department · Monsoon · Rainfall

District wise rainfall in June-Aug 2020 in India

In the ongoing South West Monsoon, India received 44 year old high surplus rainfall of 327 mm in just concluded Aug 2020, 26.6% above normal rainfall of 258.2 mm. This helped the total June-Aug 2020 rainfall to achieve 10% surplus, with actual rainfall 780.3 mm, 69.9 mm higher than normal rainfall of 710.4 mm. In June the country received 18% above normal rainfall and in July it received 9.9% below normal rainfall, the rainfall at the end of June was just 1.1 mm above normal. Thus almost the entire surplus rainfall is thanks to the rainfall during Aug 2020. The rainfall distribution has however, been far from normal that these figures suggest, as we can see from the state wise and district wise figures below.

Continue reading “District wise rainfall in June-Aug 2020 in India”
Dam floods · Dams · Floods · Monsoon

Central India Heavy Downpour brings back nightmare memories of 2019 Chambal Scare

In a rather unusual development, no less than twenty districts in contiguous areas of Madhya Pradesh, Rajasthan and Gujarat had extremely high rainfall in the 48 hours ending at 830 am on Aug 23, 2020. Three of these districts had over 250 mm rainfall in this period, four others had between 200-250 mm, six each between 150-200 and 100-150 and one between 90-100 mm. This contiguous area broadly drains Mahi river to the West, Chambal to the North, Narmada to the South and Betwa to the East. These rivers, thus are now getting heavy flows, and will continue to get for the next few days, some of it from Chambal and Betwa will also end up in Yamuna and Ganga. It reminded one of the nightmarish memories of Sept 2019 when Gandhi Sagar Dam faced existential crisis and the flood peak downstream reached upto Farakka Dam, as CWC Flood forecasting director Sharad Chandra said in a television discussion recently. Continue reading “Central India Heavy Downpour brings back nightmare memories of 2019 Chambal Scare”

Monsoon · Rainfall

District wise Rainfall in India in June July 2020

During the just concluded first half of the South West Monsoon 2020, India received 453.3 mm rainfall, just 1.1 mm above the normal rainfall of 452.2 mm during the period. The Surplus of  18% rainfall that India received in June 2020 has thus been wiped out by the 9.9% deficit in July rainfall. Normal rainfall in July 2020 is 285.3 mm, while actual rainfall was 257.1 mm. IMD does not provide monthly figures of rainfall for different states, sub divisions and river basins, which it should along with comparison with respect to normal rainfall and rainfall last year.

To get July 2020 rainfall, we will need to use the figures given in this article along with the figures of June 2020 rainfall (see: https://sandrp.in/2020/06/30/district-wise-rainfall-in-india-in-june-2020/). The district wise figures of June-July 2020 rainfall can be seen in this PDF file from IMD: IMD DISTRICT WISE RAINFALL FROM JUNE 1 TO JULY 31 2020.

Continue reading “District wise Rainfall in India in June July 2020”

Indian Meteorological Department · Monsoon · Rainfall

District Wise rainfall in India in June 2020

Here we present the rainfall figures from India Meteorological Department in the just concluded month of June 2020, the first month of SW Monsoon 2020. The overall rainfall at all India level in June 2020 was 196.2 mm, 18% above normal rainfall in the month at 166.9 mm. It was 33% deficit last year.

This is India’s wettest June 12 years, The Times of India reported on July 1, 2020. Agriculture Ministry Data shows that sowing is 68% higher at 31.56 m ha. The June rainfall was 202 mm in 2008, the rainfall this year is the highest since then. All four IMD regions (Northwest, Central, South, East & NE) have recorded surplus rainfall, the surplus is the highest in Central (30.5% surplus) and E-NE (15.7%) regions. North West India had the lowest surplus at 3.5%. IMD Head Mrutyunjay Mohapatra said that whole of India was covered by monsoon on June 26, 12 days ahead of the normal date of July 8.

State wise rainfall Three states had large excess rainfall (above 60% surplus rainfall), namely Bihar, Madhya Pradesh and Sikkim. Eight states/UTs (Union Territories) had excess rainfall (20-59% surplus): Assam, Meghalaya, UP, Chhattisgarh, Maharashtra, Telangana, Andhra Pradesh & Andaman and Nicobar. Nine had deficient rainfall (20-59% deficit): Lakshadweep, Mizoram, Manipur, J&K, Ladakh, Himachal Pradesh, Delhi, Dadar & Nagar Haveli. Rest of India had Normal Rainfall. Continue reading “District Wise rainfall in India in June 2020”