dam. Power was used to electrify trains running between Mumbai and Pune and for industrial and residential use, and a dam was built on the Velvandi River in Bhor. Geography and climate The district is surrounded by Thane district on the northwest, Raigad district on the west, Satara district on the south, Solapur district on the southeast, and Ahmednagar district on the north and northeast. On the leeward side of the Western Ghats, it extends to the Deccan Plateau on the east. Pune is at an altitude of 559 metres (1,863 feet). The district is located between 17.5° and 19.2° north latitude and 73.2° and 75.1° east longitude. Nine of the district's fifteen talukas are identified as drought-prone, covering a total area of and a cropped area of . Of the cropped area, only are irrigated—nearly half by wells and tanks, and 40 percent by government canals. The district had a population of 4.2 million in 1991, of which 52 percent was rural. There were 1,530 villages in the district. Its average rainfall is , most of which falls during the monsoon months (July to October). The area adjacent to the Western Ghats gets more rain than areas further east. The Daund and Indapur talukas experience more-frequent droughts than Maval, on the district's western edge. Temperatures are moderate and rainfall is unpredictable, in tune with the Indian monsoon. Summers, from early March to July, are dry and hot. Temperatures range from , and may reach . Winter runs from November to February. Temperatures usually hover around , sometimes dipping to . June is the driest month, and the agricultural sector is considered vulnerable until 20 September. Rivers and dams The Bhima River, the Krishna River's main tributary, rises in the Western Ghats and flows east. All the district's rivers (the Pushpavati, Krushnavati, Kukadi, Meena, Ghod, Bhama, Andhra, Indrayani, Pavna, Mula, Mutha, Ambi, Mose, Shivganga, Kanandi, Gunjavni, Velvandi, Nira, Karha and Velu) flow into the Bhima or its tributaries. Major dams are on the Kukadi, Pushpavati, Ghod, Bhima, Pavna, Bhama, Mula, Mutha (the Temghar and Khadakwasla Dams) and Mose. Administrative divisions The district has two municipal corporations in the city of Pune namely Pune Municipal Corporation (PMC) and Pimpri Chinchwad Municipal Corporation (PCMC). PCMC, Pune is north western city limits of Pune and its corporation covers Nigdi, Akurdi, Pimpri, Chinchwad and Bhosari. The region was zoned for industrial development by the