Climate of Kolkata

From Bharatpedia, an open encyclopedia

Kolkata
Climate chart (explanation)
J
F
M
A
M
J
J
A
S
O
N
D
 
 
17
 
 
25
13
 
 
23
 
 
30
17
 
 
33
 
 
34
22
 
 
48
 
 
36
25
 
 
102
 
 
36
26
 
 
260
 
 
34
27
 
 
332
 
 
32
26
 
 
329
 
 
32
26
 
 
296
 
 
32
26
 
 
151
 
 
32
24
 
 
26
 
 
30
20
 
 
17
 
 
27
15
Average max. and min. temperatures in °C
Precipitation totals in mm
Source: IMD

Kolkata has a Tropical wet-and-dry climate (Köppen climate classification Aw). The annual mean temperature is 26.8 °C (80 °F); monthly mean temperatures range from 15 °C to 30 °C (59 °F to 86 °F).[1] Summers are hot and humid with temperatures in the low 30's and during dry spells the maximum temperatures often exceed 40 °C (104 °F) during May and June.[1] Winter tends to last for only about two and a half months, with seasonal lows dipping to 9 °C – 11 °C (48.2 °F – 51.8 °F) between December and January. The highest recorded temperature is 43.9 °C (111 °F) and the lowest is 5 °C (41 °F).[1] Often during early summer (mid March to mid May), dusty squalls followed by spells of thunderstorm and heavy rains lash the city, bringing relief from the humid heat. These thunderstorms are convective in nature, and is locally known as Kal baisakhi (কালবৈশাখী, Nor'westers).[2]

Rains brought by the Bay of Bengal branch of South-West monsoon[3] lash the city between June and September and supplies the city with most of its annual rainfall of 1,582 mm (62.3 inches). The highest rainfall occurs during the monsoon in July and August interchangeably. The city receives 2,528 hours of sunshine per annum, with the maximum sunlight occurring in March.[4] Pollution is a major concern in Kolkata, and the Suspended Particulate Matter (SPM) level is high when compared to other major cities of India,[5][6] leading to regular smog and haze. Severe air pollution in the city has caused rise in pollution-related respiratory ailments such as lung cancer.[7]

Template:Kolkata weatherbox

Weather Monitoring Stations[edit]

Alipore is the major station, which is an international station. But there are also two stations at Dum Dum and Salt Lake.

References[edit]

  1. 1.0 1.1 1.2 "Weatherbase entry for Kolkata". Canty and Associates LLC. Retrieved 26 April 2006.
  2. "kal Baisakhi". Glossary of Meteorology. American Meteorological Society. Archived from the original on 30 August 2006. Retrieved 5 September 2006.
  3. Khichar, M.L.; Ram Niwas (14 July 2003). "Know your monsoon". Agriculture Tribune, The Tribune. The Tribune Trust. Retrieved 9 June 2007.
  4. "Calcutta: Not 'The City of Joy'". Gaia: Environmental Information System. Retrieved 26 April 2006.
  5. Central Pollution Control Board. "Ambient Air Quality in Seven Major Cities During 2002". Ministry of Environment & Forests, Govt of India. Archived from the original on 25 February 2006. Retrieved 26 April 2006.
  6. Central Pollution Control Board. "Air quality in major cities on 16–17 March 2006". Ministry of Environment & Forests, Govt of India. Retrieved 26 April 2006. [dead link]
  7. Bhaumik, Subir (17 May 2007). "Oxygen supplies for India police". South Asia. BBC. Retrieved 23 June 2007.
Information red.svg
Scan the QR code to donate via UPI
Dear reader, We kindly request your support in maintaining the independence of Bharatpedia. As a non-profit organization, we rely heavily on small donations to sustain our operations and provide free access to reliable information to the world. We would greatly appreciate it if you could take a moment to consider donating to our cause, as it would greatly aid us in our mission. Your contribution would demonstrate the importance of reliable and trustworthy knowledge to you and the world. Thank you.

Please select an option below or scan the QR code to donate
₹150 ₹500 ₹1,000 ₹2,000 ₹5,000 ₹10,000 Other