Iran has a variable climate. In the northwest, winters are cold with
heavy snowfall and subfreezing temperatures during December and January.
Spring and fall are relatively mild, while summers are dry and hot. In
the south, winters are mild and the summers are very hot, having average
daily temperatures in July exceeding 38C. On the Khuzestan plain, summer
heat is accompanied by high humidity.
The official language of Iran is Persian. It is the language of
government and public instruction and is the mother tongue of half of
the population. Persian is spoken as a second language by a large
proportion of the rest.
The rial, denoted
by IRR, is the official currency of Iran. The currency officially
consists of 100 dinars, however because the rial is so small in current
days, no fraction of the currency is used in accounting anymore.
in Iran was reported at 74.10 millions persons in 2009, according to the
International Monetary Fund (IMF). In 2015, Iran's Population is
expected to be 81.92 millions persons. In 2009, Iran's economy share of
world total GDP, adjusted by Purchasing Power Parity, was 1.19 percent.
In 2015, Iran's share of world total GDP is forecasted to be 1.11
percent. This page includes a chart, historical data and forecast for
Tehran is the
capital of Iran (I.R.) and Tehran Province. With a population of 8, 429,
807; it is also Iran's largest urban area and city, one of the
largest cities in Western Asia, and is the world's 19th largest city.