what kind of climate does chennai have and why
Chennai Chennai has a tropical wet and dry climate (Köppen: Aw). The city lies on the thermal equator[101] and is also on the coast, which prevents extreme variation in seasonal temperature. The hottest part of the year is late May to early June, known regionally as Agni Nakshatram ("fire star") or as Kathiri Veyyil,[102] with maximum temperatures around 35–40 °C (95–104 °F). The coolest part of the year is January, with minimum temperatures around 19–25 °C (66–77 °F). The lowest recorded temperature was 13.9 °C (57.0 °F) on 11 December 1895 and 29 January 1905.[103] The highest recorded temperature was 45 °C (113 °F) on 31 May 2003.[103] The average annual rainfall is about 140 cm (55 in).[104]
Chennai After India gained its independence in 1947, the city became the capital of Madras State, which was renamed as Tamil Nadu in 1969.[67] The violent agitations of 1965 against the compulsory imposition of Hindi and in support of English in India in the state marked a major shift in the political dynamics of the city and eventually it had a big impact on the whole state. Because of Madras and its people, English now exists in India, otherwise Hindi might have been made the sole official language in India.[68] On 17 July 1996, the city known as Madras was officially renamed Chennai, in line with what was then a nationwide trend to using less Anglicised names.[69] On 26 December 2004, an Indian Ocean tsunami lashed the shores of Chennai, killing 206 people in Chennai and permanently altering the coastline.[70][71] The 2015 Chennai Floods submerged major portions of the city, killing 269 people and resulting in damages of ₹86.4 billion (US$1 billion).[72][73][74]
Monsoon While travelling towards the Indian Ocean, the dry cold wind picks up some moisture from the Bay of Bengal and pours it over peninsular Indi] and parts of Sri Lanka. Cities like Chennai, which get less rain from the Southwest Monsoon, receive rain from this Monsoon. About 50% to 60% of the rain received by the state of Tamil Nadu is from the Northeast Monsoon.[36] In Southern Asia, the northeastern monsoons take place from December to early March when the surface high-pressure system is strongest.[37] The jet stream in this region splits into the southern subtropical jet and the polar jet. The subtropical flow directs northeasterly winds to blow across southern Asia, creating dry air streams which produce clear skies over India. Meanwhile, a low pressure system develops over South-East Asia and Australasia and winds are directed toward Australia known as a monsoon trough.
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