Climate

Due to its elevation, Bangalore enjoys a pleasant and equable climate throughout the year. The highest temperature recorded was 38.9°C (102.0°F) on May 22, 1935 and the lowest was 7.8°C (46.06°F) in 1884. Winter temperatures rarely drop below 12°C (54°F) and summer temperatures seldom exceed 38°C (100°)

Bangalore receives about 900 mm of rain annually, the wettest months being August, September, October and in that order. The summer heat is moderated by fairly frequent thunderstorms and occasional squalls cause power outages and local flooding. The heaviest rainfall recorded in a 24 hour period was 179.7 mm recorded on October 1, 1997. Most of the rainfall occurs during late afternoon/evening or night and rain before noon is infrequent. October of 2005 was recorded as one of the wettest months in Bangalore with heavy rains causing severe flooding in some areas, and closure of a number of organisations for over a couple of days

Economy
After Indian independence, some of India’s largest public sector heavy industries were established in Bangalore. The Hindustan Aeronautics Limited (HAL), which manufactures and maintains indigenous and foreign licensed fighter aircraft for the Indian Air Force, is headquartered here. The National Aerospace Laboratories (NAL), also headquartered in Bangalore, develops civil aviation products. Other heavy industries in Bangalore include Bharat Heavy Electricals Limited (BHEL), Indian Telephone Industries (ITI), Bharat Earth Movers Limited (BEML), Hindustan Machine Tools (HMT) and Hindustan Motors (HM).

In June 1972, the Indian Space Research Organization (ISRO) was established under the Department of Space and headquartered in Bangalore. Aryabhata, India’s first satellite, was developed and successfully launched by ISRO. Since then, the organization has successfully launched numerous other satellites such as Bhaskara, Rohini, APPLE, and the INSAT series, and successfully deployed Polar Satellite Launch Vehicles and Geosynchronous Satellite Launch Vehicles. ISRO also heads India’s ambitious moon program.

Bangalore is called the Silicon Valley of India because of the large number of Information Technology companies located in the city. Bangalore’s IT Industry, which is the largest contributor to India’s USD 12.2 billion IT and software export market [11], is divided into three main “clusters” [12] - Software Technology Parks of India, Bangalore (STPI), International Technology Park Ltd. (ITPL), and Electronics City.