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Tags Current Affairs

Monsoon of this year

Date: 29 September 2021 Tags: Geography & Environment


India has received 850.3 mm of rain, which is 2% less than the season’s normal. Only about three days remain for the end of monsoon season.



  • The rainfall between July and September has been considered deficient due to shortage experienced in North-west and north-east India.

  • Central India currently has a surplus of 1%. The southern part of the country has witnessed positive rains throughout the season. It currently has a surplus of 10%.


The beginning

  • The season started with the cyclone Yaas, which brought rains before the expected time. This helped June month to be above normal.

  • A break was observed for about 23 days and monsoon could entirely cover the country by July 13, five days behind schedule.

  • The prediction by IMD for August was poor but still there were intense rainy events in parts of Uttarakhand, Madhya Pradesh, Jharkhand and Odisha.


Deficiency areas

  • North-eastern states such as Nagaland, Manipur, Mizoram and Tripura experienced shortfall. They are typically one of the wettest regions.

  • Kerala and Lakshadweep also recorded shortage of rains for as long as 12 weeks. Gujarat and Saurashtra also saw reduction.



  • Position of monsoon trough was north than the usual location. As a result, majority of rains were seen in Uttarakhand, UP, Bihar and Himachal Pradesh.

  • Western Pacific Typhoons activity was less this year due to which remnants of these weather systems could not enter eastern India.

  • Negative Indian Ocean Dipole leads to lower monsoon rains. This season it was throughout negative for the region.

  • The Off-shore trough that brings rains to western coast of India remained absent. The south-westerly monsoon winds remained ineffective.

  • Madden Julian Oscillation was prevalent near eastern Africa. These conditions bring rains over equator and thus did not allow cloud formation.


Way ahead

The monsoon is set to withdraw from October 6. This makes it second most delayed withdrawal. The cyclone Gulab is expected to bring some more rains, making this year rainfall sufficient.

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