Climate of Lahore

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Weather radar of Lahore, located on Jail Road.

Lahore features a five season semi-arid climate (Köppen climate classification BSh)(from another source: Composite monsoon climate) with five seasons Foggy Winters (15 Nov – 15 Feb) with few western disturbances causing rains, Pleasant Spring (16 Feb – 15 April), Summer (15 April – June) with Dust rain storms and Heat wave periods, Rainy Moon Soon (July – 16 September) and Dry but Pleasant Autmn (16 September –14 November).

The hottest month is June, where average highs routinely exceed 40 °C (104.0 °F).Wettest month is July, with heavy rainfalls and evening thunderstorms with the possibility of cloudbursts. The coolest month is January with dense fog.

The city’s highest maximum temperature was 48.3 °C (118.9 °F) recorded on May 30, 1944.[1] And 48 °C (118 °F) was recorded on June 9, 2007.[2] The lowest temperature recorded in Lahore is –1°C recorded on 13 January 1967.[3] The highest rainfall in the city recorded during 24 hours is 221 millimetres (8.7 in), which occurred on 13 August 2008.[4]



Factors[edit]

The monsoon and the Western Disturbance are the two main factors that alter the weather over Lahore; otherwise, Continental air prevails for rest of the seasons. Following are the main factors that influence the weather over Lahore.

  • Western Disturbances generally occur during the winter months and cause moderate rainfall, rarely Hail also occur.
  • Fog do occur during the winter season and remains for three days to weeks.
  • Dust storms occur during summer months with peak in May and June.
  • Heat waves occur during May and June that cause stroke problems in the city.
  • South West Monsoon also occurs in summer from the month of June till September. Monsoon rains bring much awaited relief from scorching heat. These monsoon rains are quite heavy by nature.
  • Continental air prevails during the period when there is no precipitation in the city.

Monsoon rainfall[edit]

Gulberg covered in hail due to a hailstorm occurred on 26 February 2011

The average monsoon rainfall of Lahore is 470.1 millimetres (18.51 in).[6] The monsoon rains commence from the last week of June and persist till the end of September. In 2009, Lahore saw below-normal monsoon rainfalls due to the presence of El-Nino over Pakistan.[7] The following is the Monsoon rainfall in Lahore since 2007 based on data from the Pakistan Meteorological Department.[8]

  • In 2003, a total of 377 millimetres (14.8 in) rain was recorded.[9]
  • In 2005, a total of 426 millimetres (16.8 in) rain was recorded.[10]
  • In 2006, a total of 606 millimetres (23.9 in) rain was recorded.[11]
  • In 2007, a total of 531 millimetres (20.9 in) rain was recorded.[12]
  • In 2008, a total of 800 millimetres (31 in) rain was recorded.[13][14][15][16]
  • In 2009, a total of 318 millimetres (12.5 in) was recorded.[17][18][19][20]
  • In 2010, a total of 711 millimetres (28.0 in) was recorded.[21][22][23][24]
  • In 2011, a total of 1,439.8 millimetres (56.69 in) was recorded.[25][26]
  • In 2012, a total of 576.2 millimetres (22.69 in) was recorded.[27][28]
  • In 2013, a total of 1,185 millimetres (46.7 in) was recorded.[29][30]

Annual rainfall[edit]

Lahore mainly receives its rainfall during the monsoon season from June till September, and in winter season from December till February. The highest-ever annual rainfall in Lahore was recorded in 1955 when 1,317.5 millimetres (51.87 in) of rainfall was recorded.[31] Lahore received below normal rains in 2009, and normal rains in 2007 and 2010. The following is the Annual rainfall in Lahore since 2007 based on data from the Pakistan Meteorological Department.[32]

  • In 2007, a total of 716 millimetres (28.2 in) rain was recorded.[33]
  • In 2008, a total of 917 millimetres (36.1 in) rain was recorded.[34]
  • In 2009, a total of 468.4 millimetres (18.44 in) rain was recorded.[35]
  • In 2010, a total of 738 millimetres (29.1 in) rain was recorded.[36]
  • In 2011, a total of 1,576.8 millimetres (62.08 in) rain was recorded as of September 21, 2011.[37]

Extreme weather events[edit]

  • On February 26, 2011 Lahore received an isolated but strong hailstorm measuring 4.5 mm that carpeted several roads of the city. The hailstorm was the heaviest in Lahore for the last 35 years.[38][39] Usually hailstorms occur in the plain areas of the Punjab province during the winter season.[40] Hailstorm lasted for 30 minutes intermittently with heavy rain showers.[41] According to Meteorological Department the city received 12 millimetres (0.47 in) of rain and 4.5 millimetres (0.18 in) at the airport.[42][43]

See also[edit]

References[edit]

  1. ^ http://www.pakmet.com.pk/cdpc/extrems/lahore.htm
  2. ^ "Heatwave to persist for 4-5 days", The Dawn, June 10, 2007.
  3. ^ http://www.pakmet.com.pk/cdpc/Climate/Lahore_Climate_Data.txt
  4. ^ http://www.pakmet.com.pk/FFD/index_files/rainaug.htm
  5. ^ "Lahore Climate Normals 1961-1990". National Oceanic and Atmospheric Administration. Retrieved January 16, 2013. 
  6. ^ http://www.pakmet.com.pk/cdpc/Climate/Lahore_Climate_Data.txt
  7. ^ http://www.pakmet.com.pk/monsoon2009ver.pdf
  8. ^ http://www.pakmet.com.pk/
  9. ^ http://www.pakmet.com.pk/rnd/rnd_files/vol2_Issue3/6.%20WEATHER%20IN%20PAKISTAN.pdf
  10. ^ http://www.pakmet.com.pk/rnd/rnd_files/vol3_issue5/8.%20WEATHER%20IN%20PAKISTAN%20_july-September%202005_.pdf
  11. ^ http://www.pakmet.com.pk/rnd/rnd_files/vol4_issue7/7.%20WEATHER%20IN%20PAKISTA1%20Monsoon%20Season%20_July-September_.pdf
  12. ^ http://www.pakmet.com.pk/
  13. ^ http://www.pakmet.com.pk/FFD/index_files/rainjune.htm
  14. ^ http://www.pakmet.com.pk/FFD/index_files/rainjuly.htm
  15. ^ http://www.pakmet.com.pk/FFD/index_files/rainaug.htm
  16. ^ http://www.pakmet.com.pk/FFD/index_files/rainfallsep.htm
  17. ^ http://www.pakmet.com.pk/FFD/index_files/rainfalljune09.htm
  18. ^ http://www.pakmet.com.pk/FFD/index_files/rainfalljuly09.htm
  19. ^ http://www.pakmet.com.pk/FFD/index_files/rainfallaug09.htm
  20. ^ http://www.pakmet.com.pk/FFD/index_files/rainfallsep09.htm
  21. ^ http://www.pakmet.com.pk/FFD/index_files/rainfalljune10.htm
  22. ^ http://www.pakmet.com.pk/FFD/index_files/rainfalljuly10.htm
  23. ^ http://www.pakmet.com.pk/FFD/index_files/rainfallaug10.htm
  24. ^ http://www.pakmet.com.pk/FFD/index_files/rainfall.htm
  25. ^ http://www.pakmet.com.pk/FFD/index_files/rainfall.htm
  26. ^ http://www.pakmet.com.pk/FFD/index_files/daily/rainfallsep1.htm
  27. ^ http://namc.pmd.gov.pk/fog.php?type=f&page=46
  28. ^ http://www.pmd.gov.pk/FFD/index_files/daily/rainfalljul12.htm
  29. ^ http://namc.pmd.gov.pk/fog.php?type=f&page=46
  30. ^ http://www.pmd.gov.pk/FFD/index_files/daily/rainfalljul12.htm
  31. ^ http://www.pakmet.com.pk/cdpc/extrems/lahore.htm
  32. ^ http://www.pakmet.com.pk/
  33. ^ "Rainfall Statements for the year 2007". Pakmet.com.pk. Retrieved 25 September 2010. 
  34. ^ "Rainfall Statements for the year 2008". Pakmet.com.pk. Retrieved 25 September 2010. 
  35. ^ "Rainfall statements for the year 2009". Pakmet.com.pk. Retrieved 25 September 2010. 
  36. ^ "Rainfall statements for the year 2010". Pakmet.com.pk. Retrieved 25 September 2010. 
  37. ^ "Rainfall statements for the year 2011". Pakmet.com.pk. Retrieved 18 January 2011. 
  38. ^ http://www.pakimag.com/places/lahore-snow-hailstorm-pics-feb-26-2011.html
  39. ^ http://www.pakimag.com/tag/lahore-hailstorm
  40. ^ http://www.newsviewspedia.com/lahore-gets-rare-hailstorm-wonderfully.html
  41. ^ http://lahorenama.wordpress.com/2011/02/26/hail-storm-in-lahore/
  42. ^ http://poleshift.ning.com/profiles/blogs/rare-freak-hailstorm-causes?xg_source=activity
  43. ^ http://www.pakmet.com.pk/FFD/index_files/rainfallfeb11.htm

External links[edit]