There are favourable climatic conditions in block of 48 states. Most of it is in the temperate tone, only the extreme South is in the subtropical zone (tropical Hawaii and Florida, arctic in Alaska).
In July, in average hottest month, the temperature varies from 20°C to 30,6°C and
in January, in the coldest month, from 5,6°C to -2,8°C. THE ATLANTIC COAST, owing to the influence of the Labrador Stream, is relatively cold with occasional heavy snowfalls in winter. Summers are hot, very humid, the heaviest rainfall being in the coastal plains.

THE MIDWEST - greater contrast in temperatures, winters are colder and longer with snowfalls, while summers are hot and dry. Typical for this area are so sadly famous tornadoes.

THE GULF COAST has a mild climate with good rainfall. The area of Florida suffers from hurricanes.

THE WESTERN MOUNTAIN SYSTEM has a harsh, continental type of climate, cold winters with snowfalls and hot, dry summers.

THE PACIFIC COAST has a milder climate than the Atlantic coast.

POPULATION
A 1990 census: the population was 250 mio., in 1992 the population was 270 mio:
 male 48,8%
 female 51,2%
The density is 27,2 people per sq. km. It's largely an urban nation:
in urban areas 80%
in rural country 20%
 Growth Rate (annual) 1,0%
 Number of households 97 mio.
 persons per 1 household 2,67
 persons per family 3,26
 life expectancy (1995): white male 73,7
white female 80,3
non-white male 68,2
non-white female 76,8
 birth rate 15,7 per 1,000 people
 death rate 8,8 per 1,000 people
 population by race (1995): white 82,9%
black 12,6% Asian, Pacific Islanders 3,7%
American Indians, Eskimos 0,8%
Hispanic origin 10,1%
 the average American changes his/her residence 11,7 times a lifetime
 one in six Americans moves each year
 largest metropolitan areas (1994): New York 19,67 mio.
Los Angeles 15,3 mio. Chicago 8,5 mio.
Philadelphia 5,9 mio.

NATIONAL ECONOMY
The USA holds a leading position in the world's industrial and agricultural production as well as in international trade. It was the first country in the world whose productive system became highly mechanised. The productivity of labour is higher than in any other country. WW2 strengthened the U.S. economy.