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Country Facts
- Full name: United States of America
- Population: 314.7 million (UN, 2009)
- Capital: Washington DC
- Largest city: New York City
- Area: 9.8 million sq km (3.8 million sq miles)
- Major language: English
- Major religion: Christianity
- Life expectancy: 77 years (men), 81 years (women) (UN)
- Monetary unit: 1 US dollar = 100 cents
- Main exports: Computers and electrical machinery, vehicles, chemical products, food and live animals, military equipment and aircraft
- GNI per capita: US $47,580 (World Bank, 2008)
- Internet domain: .us
- International dialling code: +1
Climatological Information
| Month | Mean Temperature oC | Mean Total Precipitation (mm) | Mean Number of Precipitation Days | |
| Daily Minimum |
Daily Maximum |
|||
| Jan | -2.9 | 5.7 | 69.1 | 7.8 |
| Feb | -1.6 | 7.7 | 68.8 | 7.3 |
| Mar | 3.2 | 13.6 | 80.5 | 8.0 |
| Apr | 8.0 | 19.3 | 68.8 | 7.6 |
| May | 13.7 | 24.6 | 93.0 | 8.9 |
| Jun | 19.2 | 29.3 | 85.9 | 7.5 |
| Jul | 21.9 | 31.4 | 96.5 | 7.8 |
| Aug | 21.1 | 30.5 | 99.3 | 7.4 |
| Sep | 16.9 | 26.7 | 84.1 | 5.9 |
| Oct | 10.2 | 20.6 | 76.7 | 5.7 |
| Nov | 5.1 | 14.6 | 79.2 | 6.7 |
| Dec | -0.2 | 8.3 | 79.2 | 7.1 |
