Climate of Lahore
Encyclopedia
The climate of Lahore features a hot semi-arid climate (Köppen climate classification
Köppen climate classification
The Köppen climate classification is one of the most widely used climate classification systems. It was first published by Crimea German climatologist Wladimir Köppen in 1884, with several later modifications by Köppen himself, notably in 1918 and 1936...

 BSh) with rainy, long and extremely hot summers, dry and warm winters, a monsoon
Monsoon
Monsoon is traditionally defined as a seasonal reversing wind accompanied by corresponding changes in precipitation, but is now used to describe seasonal changes in atmospheric circulation and precipitation associated with the asymmetric heating of land and sea...

 and dust storms. The weather of Lahore is extreme during the months of May, June and July, when the temperatures soar to 40–48 °C (104–118.4 F).From late June till August, the monsoon seasons starts, with heavy rainfall throughout the province. The city’s highest maximum temperature was 48.3 °C (118.9 °F) recorded on May 30, 1944. And 48 °C (118.4 °F) was recorded on June 9, 2007. The lowest temperature recorded in Lahore is -1.1 C recorded on 13 January 1967. The highest rainfall in the city recorded during 24 hours is 221 millimetres (8.7 in), which occurred on 13 August 2008.

Factors

The monsoon
Monsoon
Monsoon is traditionally defined as a seasonal reversing wind accompanied by corresponding changes in precipitation, but is now used to describe seasonal changes in atmospheric circulation and precipitation associated with the asymmetric heating of land and sea...

 and the Western Disturbance
Western Disturbance
Western Disturbance is the term used in India, Pakistan, Bangladesh and Nepal to describe an extratropical storm originating in the Mediterranean, that brings sudden winter rain and snow to the northwestern parts of the Indian subcontinent. This is a non-monsoonal precipitation pattern driven by...

 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 occurs during the winter months and causes moderate rainfall, rarely Hail also occur.
  • Fog do occur during the winter season and remains for three days to weeks.
  • Dust storm occur during summer months with peak in May and June.
  • Heat waves occurs during May and June that causes 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

The average monsoon rainfall of Lahore is 470.1 millimetres (18.5 in). 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
El Niño-Southern Oscillation
El Niño/La Niña-Southern Oscillation, or ENSO, is a quasiperiodic climate pattern that occurs across the tropical Pacific Ocean roughly every five years...

 over pakistan. The following is the Monsoon rainfall in Lahore since 2007 based on data from the Pakistan Meteorological Department
Pakistan Meteorological Department
The Pakistan Meteorological Department, also known as Pak Met Office, is a Government of Pakistan organization which works under the Ministry of Defence...

.
  • In 2003, a total of 377 millimetres (14.8 in) rain was recorded.
  • In 2005, a total of 426 millimetres (16.8 in) rain was recorded.
  • In 2006, a total of 606 millimetres (23.9 in) rain was recorded.
  • In 2007, a total of 531 millimetres (20.9 in) rain was recorded.
  • In 2008, a total of 800 millimetres (31.5 in) rain was recorded.
  • In 2009, a total of 318 millimetres (12.5 in) was recorded.
  • In 2010, a total of 711 millimetres (28 in) was recorded.
  • In 2011, a total of 1439.8 millimetres (56.7 in) was recorded.

The climate of Lahore features a hot semi-arid climate (Köppen climate classification
Köppen climate classification
The Köppen climate classification is one of the most widely used climate classification systems. It was first published by Crimea German climatologist Wladimir Köppen in 1884, with several later modifications by Köppen himself, notably in 1918 and 1936...

 BSh) with rainy, long and extremely hot summers, dry and warm winters, a monsoon
Monsoon
Monsoon is traditionally defined as a seasonal reversing wind accompanied by corresponding changes in precipitation, but is now used to describe seasonal changes in atmospheric circulation and precipitation associated with the asymmetric heating of land and sea...

 and dust storms. The weather of Lahore is extreme during the months of May, June and July, when the temperatures soar to 40–48 °C (104–118.4 F).From late June till August, the monsoon seasons starts, with heavy rainfall throughout the province. The city’s highest maximum temperature was 48.3 °C (118.9 °F) recorded on May 30, 1944.http://www.pakmet.com.pk/cdpc/extrems/lahore.htm And 48 °C (118.4 °F) was recorded on June 9, 2007. "Heatwave to persist for 4-5 days", The Dawn, June 10, 2007. The lowest temperature recorded in Lahore is -1.1 C recorded on 13 January 1967.http://www.pakmet.com.pk/cdpc/Climate/Lahore_Climate_Data.txt The highest rainfall in the city recorded during 24 hours is 221 millimetres (8.7 in), which occurred on 13 August 2008.http://www.pakmet.com.pk/FFD/index_files/rainaug.htm

Factors

The monsoon
Monsoon
Monsoon is traditionally defined as a seasonal reversing wind accompanied by corresponding changes in precipitation, but is now used to describe seasonal changes in atmospheric circulation and precipitation associated with the asymmetric heating of land and sea...

 and the Western Disturbance
Western Disturbance
Western Disturbance is the term used in India, Pakistan, Bangladesh and Nepal to describe an extratropical storm originating in the Mediterranean, that brings sudden winter rain and snow to the northwestern parts of the Indian subcontinent. This is a non-monsoonal precipitation pattern driven by...

 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 occurs during the winter months and causes moderate rainfall, rarely Hail also occur.
  • Fog do occur during the winter season and remains for three days to weeks.
  • Dust storm occur during summer months with peak in May and June.
  • Heat waves occurs during May and June that causes 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

The average monsoon rainfall of Lahore is 470.1 millimetres (18.5 in).http://www.pakmet.com.pk/cdpc/Climate/Lahore_Climate_Data.txt 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
El Niño-Southern Oscillation
El Niño/La Niña-Southern Oscillation, or ENSO, is a quasiperiodic climate pattern that occurs across the tropical Pacific Ocean roughly every five years...

 over pakistan.http://www.pakmet.com.pk/monsoon2009ver.pdf The following is the Monsoon rainfall in Lahore since 2007 based on data from the Pakistan Meteorological Department
Pakistan Meteorological Department
The Pakistan Meteorological Department, also known as Pak Met Office, is a Government of Pakistan organization which works under the Ministry of Defence...

.http://www.pakmet.com.pk/
  • In 2003, a total of 377 millimetres (14.8 in) rain was recorded.http://www.pakmet.com.pk/rnd/rnd_files/vol2_Issue3/6.%20WEATHER%20IN%20PAKISTAN.pdf
  • In 2005, a total of 426 millimetres (16.8 in) rain was recorded.http://www.pakmet.com.pk/rnd/rnd_files/vol3_issue5/8.%20WEATHER%20IN%20PAKISTAN%20_july-September%202005_.pdf
  • In 2006, a total of 606 millimetres (23.9 in) rain was recorded.http://www.pakmet.com.pk/rnd/rnd_files/vol4_issue7/7.%20WEATHER%20IN%20PAKISTA1%20Monsoon%20Season%20_July-September_.pdf
  • In 2007, a total of 531 millimetres (20.9 in) rain was recorded.http://www.pakmet.com.pk/
  • In 2008, a total of 800 millimetres (31.5 in) rain was recorded.http://www.pakmet.com.pk/FFD/index_files/rainjune.htmhttp://www.pakmet.com.pk/FFD/index_files/rainjuly.htmhttp://www.pakmet.com.pk/FFD/index_files/rainaug.htmhttp://www.pakmet.com.pk/FFD/index_files/rainfallsep.htm
  • In 2009, a total of 318 millimetres (12.5 in) was recorded.http://www.pakmet.com.pk/FFD/index_files/rainfalljune09.htmhttp://www.pakmet.com.pk/FFD/index_files/rainfalljuly09.htmhttp://www.pakmet.com.pk/FFD/index_files/rainfallaug09.htmhttp://www.pakmet.com.pk/FFD/index_files/rainfallsep09.htm
  • In 2010, a total of 711 millimetres (28 in) was recorded.http://www.pakmet.com.pk/FFD/index_files/rainfalljune10.htmhttp://www.pakmet.com.pk/FFD/index_files/rainfalljuly10.htmhttp://www.pakmet.com.pk/FFD/index_files/rainfallaug10.htmhttp://www.pakmet.com.pk/FFD/index_files/rainfall.htm
  • In 2011, a total of 1439.8 millimetres (56.7 in) was recorded.http://www.pakmet.com.pk/FFD/index_files/rainfall.htm

The climate of Lahore features a hot semi-arid climate (Köppen climate classification
Köppen climate classification
The Köppen climate classification is one of the most widely used climate classification systems. It was first published by Crimea German climatologist Wladimir Köppen in 1884, with several later modifications by Köppen himself, notably in 1918 and 1936...

 BSh) with rainy, long and extremely hot summers, dry and warm winters, a monsoon
Monsoon
Monsoon is traditionally defined as a seasonal reversing wind accompanied by corresponding changes in precipitation, but is now used to describe seasonal changes in atmospheric circulation and precipitation associated with the asymmetric heating of land and sea...

 and dust storms. The weather of Lahore is extreme during the months of May, June and July, when the temperatures soar to 40–48 °C (104–118.4 F).From late June till August, the monsoon seasons starts, with heavy rainfall throughout the province. The city’s highest maximum temperature was 48.3 °C (118.9 °F) recorded on May 30, 1944.http://www.pakmet.com.pk/cdpc/extrems/lahore.htm And 48 °C (118.4 °F) was recorded on June 9, 2007. "Heatwave to persist for 4-5 days", The Dawn, June 10, 2007. The lowest temperature recorded in Lahore is -1.1 C recorded on 13 January 1967.http://www.pakmet.com.pk/cdpc/Climate/Lahore_Climate_Data.txt The highest rainfall in the city recorded during 24 hours is 221 millimetres (8.7 in), which occurred on 13 August 2008.http://www.pakmet.com.pk/FFD/index_files/rainaug.htm

Factors

The monsoon
Monsoon
Monsoon is traditionally defined as a seasonal reversing wind accompanied by corresponding changes in precipitation, but is now used to describe seasonal changes in atmospheric circulation and precipitation associated with the asymmetric heating of land and sea...

 and the Western Disturbance
Western Disturbance
Western Disturbance is the term used in India, Pakistan, Bangladesh and Nepal to describe an extratropical storm originating in the Mediterranean, that brings sudden winter rain and snow to the northwestern parts of the Indian subcontinent. This is a non-monsoonal precipitation pattern driven by...

 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 occurs during the winter months and causes moderate rainfall, rarely Hail also occur.
  • Fog do occur during the winter season and remains for three days to weeks.
  • Dust storm occur during summer months with peak in May and June.
  • Heat waves occurs during May and June that causes 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

The average monsoon rainfall of Lahore is 470.1 millimetres (18.5 in).http://www.pakmet.com.pk/cdpc/Climate/Lahore_Climate_Data.txt 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
El Niño-Southern Oscillation
El Niño/La Niña-Southern Oscillation, or ENSO, is a quasiperiodic climate pattern that occurs across the tropical Pacific Ocean roughly every five years...

 over pakistan.http://www.pakmet.com.pk/monsoon2009ver.pdf The following is the Monsoon rainfall in Lahore since 2007 based on data from the Pakistan Meteorological Department
Pakistan Meteorological Department
The Pakistan Meteorological Department, also known as Pak Met Office, is a Government of Pakistan organization which works under the Ministry of Defence...

.http://www.pakmet.com.pk/
  • In 2003, a total of 377 millimetres (14.8 in) rain was recorded.http://www.pakmet.com.pk/rnd/rnd_files/vol2_Issue3/6.%20WEATHER%20IN%20PAKISTAN.pdf
  • In 2005, a total of 426 millimetres (16.8 in) rain was recorded.http://www.pakmet.com.pk/rnd/rnd_files/vol3_issue5/8.%20WEATHER%20IN%20PAKISTAN%20_july-September%202005_.pdf
  • In 2006, a total of 606 millimetres (23.9 in) rain was recorded.http://www.pakmet.com.pk/rnd/rnd_files/vol4_issue7/7.%20WEATHER%20IN%20PAKISTA1%20Monsoon%20Season%20_July-September_.pdf
  • In 2007, a total of 531 millimetres (20.9 in) rain was recorded.http://www.pakmet.com.pk/
  • In 2008, a total of 800 millimetres (31.5 in) rain was recorded.http://www.pakmet.com.pk/FFD/index_files/rainjune.htmhttp://www.pakmet.com.pk/FFD/index_files/rainjuly.htmhttp://www.pakmet.com.pk/FFD/index_files/rainaug.htmhttp://www.pakmet.com.pk/FFD/index_files/rainfallsep.htm
  • In 2009, a total of 318 millimetres (12.5 in) was recorded.http://www.pakmet.com.pk/FFD/index_files/rainfalljune09.htmhttp://www.pakmet.com.pk/FFD/index_files/rainfalljuly09.htmhttp://www.pakmet.com.pk/FFD/index_files/rainfallaug09.htmhttp://www.pakmet.com.pk/FFD/index_files/rainfallsep09.htm
  • In 2010, a total of 711 millimetres (28 in) was recorded.http://www.pakmet.com.pk/FFD/index_files/rainfalljune10.htmhttp://www.pakmet.com.pk/FFD/index_files/rainfalljuly10.htmhttp://www.pakmet.com.pk/FFD/index_files/rainfallaug10.htmhttp://www.pakmet.com.pk/FFD/index_files/rainfall.htm
  • In 2011, a total of 1439.8 millimetres (56.7 in) was recorded.http://www.pakmet.com.pk/FFD/index_files/rainfall.htmhttp://www.pakmet.com.pk/FFD/index_files/daily/rainfallsep1.htm

Annual Rainfall

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 1317.5 millimetres (51.9 in) of rainfall was recorded.http://www.pakmet.com.pk/cdpc/extrems/lahore.htm 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
Pakistan Meteorological Department
The Pakistan Meteorological Department, also known as Pak Met Office, is a Government of Pakistan organization which works under the Ministry of Defence...

.http://www.pakmet.com.pk/
  • In 2007, a total of 716 millimetres (28.2 in) rain was recorded.
  • In 2008, a total of 917 millimetres (36.1 in) rain was recorded.
  • In 2009, a total of 468.4 millimetres (18.4 in) rain was recorded.
  • In 2010, a total of 738 millimetres (29.1 in) rain was recorded.
  • In 2011, a total of 1576.8 millimetres (62.1 in) rain was recorded as of September 21, 2011.

Extreme weather events in Lahore

  • On February 26, 2011 Lahore received a 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.http://www.pakimag.com/places/lahore-snow-hailstorm-pics-feb-26-2011.htmlhttp://www.pakimag.com/tag/lahore-hailstorm Usually the hailstorm occurs in the plain areas of the Punjab province during the winter season.http://www.newsviewspedia.com/lahore-gets-rare-hailstorm-wonderfully.html Hailstorm lasted for 30 minutes intermittently with heavy rain showers.http://lahorenama.wordpress.com/2011/02/26/hail-storm-in-lahore/ According to Meteorological Department the city received 12 millimetre (0.47244094488189 in) of rain and 4.5 millimetre (0.177165354330709 in) at Airport.http://poleshift.ning.com/profiles/blogs/rare-freak-hailstorm-causes?xg_source=activityhttp://www.pakmet.com.pk/FFD/index_files/rainfallfeb11.htm

External links

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