Geography
The province of Tehran has over 12 million inhabitants and is Iran's most densely-populated region. Approximately 86.5 percent reside in urban areas and 13.5 percent in rural areas of the province.
The largest rivers of this province are Karaj River and Jajrud River.
Mountain ranges such as The Alborz span the north; Savad Kooh and Firooz Kooh are located in the north east; Lavasanat, Qarah Daq, Shemiranat, Hassan Abad and Namak Mountains are in the southern areas; Bibi Shahr Banoo and Alqadr are situated in the south east and the heights of Qasr-e-Firoozeh being located to the east of the province.
Environmentally, the climate of Tehran province in the southern areas is warm and dry, but in the mountain vicinity is cold and semi-humid, and in the higher regions is cold with long winters. The hottest months of the year are from mid-July to mid-September when temperatures range from 28 °C (82 °F) to 30 °C (86 °F) and the coldest months experience 1 °C (34 °F) around December–January, but at certain times in winter it can reach −15 °C (5 °F). Tehran city has moderate winters and hot summers. Average annual rainfall is approximately 200 millimetres (7.9 in), the maximum being during the winter season. On the whole, the province has a semi arid, steppe climate in the south and an alpine climate in the north.
Read more about this topic: Tehran Province
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