The inter-agency assessment mission prepared a report in close collaboration with all UN partners present in Tehran, and in consultation with relevant national authorities. A summary of the inter-agency mission report is provided below, as well as information on UN agency assistance to the affected population in Iran. The full report of the inter-agency mission can be made available upon request. Iran's economy is a mixture of central planning, state ownership of oil and other large enterprises, village agriculture, and small-scale private trading and service ventures. Iran's climate is mostly arid or semiarid and subtropical along the Caspian coast.
Summers are warm to hot while winters can be extremely cold.
Generally, rainfall occurs from October to May with annual average precipitation in the coastal areas between 800 and 2,000 mm. Average temperatures range in Tehran from -3 to 7 degrees Celsius in January to 22 to 37 degrees Celsius in July. Iran is highly prone to natural disasters, in particular earthquakes, floods and drought. A severe drought in 1999 followed by an extreme drought in 2000 has proved a disastrous combination for the Islamic Republic of Iran. The worst drought in 30 years has seriously affected 18 of the country's 28 provinces, mostly in southern, eastern and central Iran, especially, Fars, Hormozgan, Karman, Sistan Balouchestan, Khorasan, Isfahan, and Yazd.