Since October 1, Bengaluru has obtained 311 mm of rainfall, a departure of 189 mm from the traditional. The earlier document of town having obtained the very best rainfall throughout the month in recent times was in 2017 when Bengaluru recorded 385.7 mm. Based on the India Meteorological Division (IMD), town has obtained a complete of 1,795.5 mm rainfall this 12 months, breaking the annual document of 1,696 mm in 2017.
After a lower in October rainfall in 2018 (111.7 mm), it has solely grown over time. The rainfall recorded in October 2019 was 178.4 mm, whereas it was 204.3 mm in 2020 and 366.3 mm in October 2021, which was the second wettest month since 2017.
Nonetheless, the all-time document for October rainfall was reported in 2005 when Bengaluru obtained 605.6 mm of rain.
Based on the IMD, yearly throughout October and November, town receives heavy rainfall. “Our information present that in October 2005, Bengaluru obtained 605.6 mm of rainfall. The heaviest rainfall in 24 hours in October was 178.9 mm on October 1, 1997. October and November are the months which obtain heavy rainfall. Owing to rising concretisation, the rainfall sample has additionally been erratic and town is receiving heavy rainfall,” an IMD scientist mentioned.
Variation in month-to-month rainfall sample
Not solely has the annual rain in Bengaluru elevated, however there’s a variation within the month-to-month rainfall sample as nicely. Whereas the typical rainfall for the month of Might is 107.4 mm, this 12 months the IMD observatory recorded 253.9 mm.
Based on the Met division, June this 12 months was the wettest in ten years with 206 mm of rainfall. In June 2015, town recorded 191.3 mm of rainfall, whereas Bengaluru obtained 177.1 mm of rain in June 2012.
Towards a mean of 116.4 mm of rain in July, town obtained 197.8 mm of rainfall this 12 months. Whereas final 12 months Bengaluru obtained 98.5 mm of rain in August, this 12 months it obtained 364.2 mm, simply in need of the all-time document (set in 1998) of 387.1 mm for the month.
Within the June-September season this 12 months, town has obtained greater than 1,032 mm of rainfall towards a mean of 661 mm. The earlier document for this era was 949.7 mm in 2017.
The IMD information additionally exhibits that the typical rainfall in Bengaluru has elevated by 9 per cent. The typical rainfall has elevated from 986.8 throughout the 1981-2010 interval to 1,077.8 mm throughout 1991-2021.
Based on the Met division, the earlier wettest 12 months on document was 2005 when town obtained 1,608.5 mm of rainfall. The annual rainfall in Bengaluru recorded in 2021, 2020, 2019 and 2018 was 1,500 mm, 1,200 mm, 950 mm and 1050 mm, respectively.