About United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic consisting of 50 states and a federal capital district, Washington, D.C. The 48 contiguous states border Canada to the north and Mexico to the south, with the semi-exclave of Alaska in the northwest and the archipelago of Hawaii in the Pacific Ocean. The United States also asserts sovereignty over five major island territories and various uninhabited islands in Oceania and the Caribbean. It is a megadiverse country, with the world's fourth-largest total area and third-largest population, exceeding 341 million.
Climate in Washington D.C.
Warmest July, coolest December, driest March, sunniest July. Best time to visit: June.
Monthly climate normals for Washington D.C., 2020| Month | High | Low | Rainfall | Sunshine |
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| January | 8.6°C | -0.2°C | 72mm | 188h |
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| February | 9.9°C | 0.6°C | 118mm | 172h |
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| March | 15.5°C | 4.7°C | 71mm | 223h |
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| April | 16.7°C | 5.8°C | 158mm | 239h |
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| May | 20.9°C | 11.1°C | 92mm | 304h |
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| June | 29°C | 18.6°C | 98mm | 353h |
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| July | 32.7°C | 22.5°C | 168mm | 383h |
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| August | 28.5°C | 20.9°C | 449mm | 292h |
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| September | 24.3°C | 15.4°C | 173mm | 255h |
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| October | 19.9°C | 10.5°C | 158mm | 216h |
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| November | 15.8°C | 6.3°C | 194mm | 229h |
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| December | 8°C | -0.3°C | 146mm | 196h |
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Avg. high/low, °C (left axis) Rainfall, mm (bar maxes out at 250mm/month)
Daily normals for 2020. Hover a month for exact figures.
Travel guide
The United States of America spans a continent and numerous islands: its diverse geography comprises vast uninhabited areas of natural beauty punctuated by cities ringed by sprawling suburbs. Its wide array of tourist destinations includes the skyscrapers of Manhattan and Chicago, the natural wonders of Yellowstone and Alaska, the canyonlands of the Southwest, the towering volcanoes and rugged coastlines of the Pacific Northwest, and the warm, sunny beaches of Florida, Hawaii, and Southern California.
UNESCO World Heritage Sites
- Cahokia
- Carlsbad Caverns National Park
- Chaco Culture World Heritage Site
- El Camino Real de Tierra Adentro
- Everglades National Park
- Grand Canyon National Park
- Great Smoky Mountains National Park
- Hawaiʻi Volcanoes National Park
- Hopewell Ceremonial Earthworks
- Independence Hall
Upcoming public holidays
Full source list on About.
United States
Antarctica