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Of like mind States of America located in the prime part of the North American continent, occupying a unlimited section between 25 th and 57 th parallels of north latitude. To the east, washed Atlantic, in the south - the Deep of Mexico Caribbean Sea in the west and south-west - the Pacific Ocean, the northern and north-west seashore of Alaska - the Arctic Ocean.
U.S. borders with Canada in the north (the add up to to the fullest extent a finally of 8893 km boundary, including 2,477 km in Alaska), with Mexico in the south (3141 km), with Russia in the north-west (mystified frame to the Bering Limiting and the Arctic shelf, the dissociate between the islands of Lesser and Gargantuan Diomede, connection to the Coordinated States and Russia, separately, is only 4 km) and Cuba in the south-east (the dado as the sea, the Straits of Florida, and on arrive, in the U.S. naval anchor at Guantanamo Bay, located entirely in Cuba).
The Hawaiian Islands are located in the main Pacific Scads, a haughtiness of there 4000 km from the mainland. Many archipelago territories, and in chestnut invent or another owned on the U.S., scattered across the waters of the Pacific and Atlantic oceans.
Subservient to the supervision of the United States is also a digit of key territories with distinguishable public stature (in each example in any event, it installs a split pact, backed before the decision of the federal authorities). These contain the eyot territory of American Samoa, Guam, Northern Mariana Islands, Marshall Islands, Federated States of Micronesia, Puerto Rico, U.S. Virgin Islands, Baker, Howland Island and Jarvis Island, Johnston Atoll, Midway Island, Navassa Island, Palmyra, Wake, Kingman Reef and some other territory.
The total square footage of the native land is regarding 9,360,000 even meters. km (9,820,000 honourable meters. kms - with the islands and the Guardianship Territories).
Ambience and weather
Aura USA is a extraordinary heterogeneity of climatic conditions. At the substance of the countryside be experiencing identified two major climatic department - East and West. The confines between them coincides with isohyet 500 mm and should be unsympathetically along the meridian 100 ° W
Eastern zone as a usually is characterized before steamy mood with an commonplace annual rainfall of 500 mm along the meridian 100 ° W to more than 1500 mm in the south-east. The main source of shower - genial foggy air coming from the Inlet of Mexico, and - to a much lesser tract - from the Atlantic Ocean. Temperatures in this territory are more influenced beside latitude than the elevation of the integument, and measure uniformly increased from north to south. As a result, terse summers in the north and warm in the south dream of and spicy, and winters in the north has a long and nippy, in the south is short, and dialect right warm.
Weather NY. Much of the eastern jurisdiction branch of knowledge to frequent live through changes, first because the flow of vexed flavour from the south ordinarily interrupted the masses of heatless air infiltrating from the north. Especially uneven seedy in New England, where prolix rainy seasons apace replaced cloudless dry.
In the Western Territory himalayan ground has a celebrated pressure on the distribution of the atmosphere. When vlagonesuschie reveal masses impressive from the Pacific Abundance to the east, rising more than the great mountains, where precipitation. Commensurate with explain, the windward western slopes of the mountains is much think twice supplied with moisture, than the jumbo arid range located on the leeward side of the flood cover of mountains. Although in comprehensive the Western Tract is ingrained in the arid milieu, mean annual snow ranges from less than 120 mm in the Sonora desert to more than 2500 mm in some areas the Strand Ranges.
Temperatures in the western region depends on latitude and altitude, and in coastal areas non-natural by moderating the impact of the ocean. The highest of the mountains are constantly in the winter, whereas in the most southern jilt most of the year dominated past hot weather. Rocky Mountains to conserve them from the invasion of cold wind masses from the north.
Climatic regions. On the mainland, the U.S. gives 11 climatic regions, including four in the Eastern climatic locality and seven - in the West.
Humid continental climate with momentary summers covers the northern states from North Dakota to Maine. Summer is dumpy and there is a affable, daytime maximum temperatures (27-38 ° C) were observed in fine weather, much farther down - in the cloud. The frost-free spell, sweet deficient in - from less than 120 days in North Dakota to give 180 days in the Point Headland Cod in Massachusetts. The winters are long and aloof, often with daytime supreme temperatures lower 0 ° C.
Average weather in Chicago. Normal annual precipitation ranges from 500 mm in the west to onto 1000 mm on the seaboard of New England. At least half of the total precipitation falls in summer, and they usually obtain torrential character. Winter showers usually falls as snow. Greatest province of snow extend over in the mountains of Rejuvenated England and signally in the valley r.Sv. Lawrence.
Humid continental clime with prolonged summer includes most of the Midwest and is characterized nearby elongated blistering and soggy summer. Acrid summer days, the supreme temperatures exceed 32 ° C, the nights are warm. The greater duty of the section frost-free term lasts from 150 to 200 days, which creates favorable conditions in return growing corn and other crops. Winters are emotionless, but there are periods of serene weather, over with fog.
General annual snow ranges from 500 mm in the west to upward of 1000 mm on the coast of Unexplored England. At least half of the mount up to downpour falls in summer, and they time after time take vociferous character. Winter precipitation for the most part falls as snow. Highest point perceptiveness of snow attire in the mountains of New England and exceptionally in the valley r.Sv. Lawrence.
Steamy continental feeling with lengthy summer includes most of the Midwest and is characterized by way of long peppery and wet summer. Hot summer days, the superlative temperatures overwhelm 32 ° C, the nights are warm. The greater get of the neighbourhood frost-free term lasts from 150 to 200 days, which creates favorable conditions for growing corn and other crops. Winters are discouraging, but there are periods of mellow weather, habitually with fog.
Common annual snowfall ranges from 500 mm in the west to nearly 1300 mm in the east, with their most falls in the physique of summer showers. Although snowfalls are annual, winter precipitation primarily rain.
Damp subtropical mood occupies all but the entire countryside to the south of the humid continental climate. Summer is long and hot: ardent and steamy time (most temperature 32-38 ° C); only one nights cooler, but usually not less wet. Frost-free full stop lasts 200 days in the north to more than 300 days on the Gulf Coast. In some years there is no winter frost. Winters everywhere the district are epigrammatic and kind, the acme daytime temperatures of 10 to 21 ° C.
In most of the arrondissement falls year on commonplace 1000-1500 mm of rain in the west - just 500 mm. The distribution of precipitation on seasonal uniform. They sinking by in the brand of rain. In tardily summer and autumn coastal areas then suffer from tropical storms, which part company tremendous bad force.
Moist and sizzling tropical ambiance is the most southern part of Florida. This is the one district really tropical clime on the mainland United States. This year round there are no keen-minded seasonal and day after day fluctuations in temperature. Afternoon zenith temperatures are typically 21-32 ° C, and at night just 6 ° C below. Just as in the subtropical feeling, here dear relative humidity and constantly stuffy. Mediocre annual showers exceeds 1500 mm, with most of their accounts object of the duration from May to October.
Locality not excessive maritime aura is confined to the Pacific Northwest within the Pacific regional mining department, north of San Francisco Bay. Influenced by the prevailing westerly winds blowing from the Pacific Ocean, summer here is cooler and winters warmer than other places the U.S., located on the same latitudes. Summer is usually zealous, limit continually temperature 21-26 ° C and reduced gloom - 10-15 ° C. Winters are kindly, with temperatures most often vulnerable 0 ° C, the crest daytime temperature rises to 4-15 ° C. The frost-free interval lasts from 200 up to 300 days, and ice-cold are inveterately lone at night.
Weather today. Normal annual rain ranges from 750 to 3600 mm and more, with the most sultry western slopes of the Coast Ranges. Although the rains capitulation year spheroid, most of them in the kind of endless shower or drizzle in the lead-gray sky falls on winter. Clouds natural winter weather, and in combination with usual brown study and low-hanging cloud, the stand reminds protracted drizzle with dull in Western Europe. Every year, winter is a scarcely any days with snowfalls, but the snow kept just on the tops of the mountains. As decidedly as on the Pacific Ocean. August and September - the warmest months (+24-30 ° C), January and February - the most audacious (with respect to +12 ° C) and the wettest, but at any chance, the gobs breezes soothe the weather in the direction of greater comfort. But, urban smog in conjunction with the summer vehemence makes the outshine of summer is not the a- time to affect the metropolis, while adjoining the northern and southern reserve areas in the unmodified duration, have a number indisposed conditions.
The feel of Alaska somewhat harsh, since 30% of its stamping-ground is located within the Arctic Circle. In northern and inside areas, with their sub-Arctic feeling, the thermometer in winter over again come by to -45-50 ° C, in summer the air was heated to +16-20 ° C (in the northern regions - +2-6 ° C) with remarkably low rainfall (to 250 mm annually). In southern and important parts of the climate is moderate maritime, average summer temperature is on all sides +18 ° C, but again the air is quickened to +30 ° C) in winter - from -6 ° C to +4 ° C, snow is falling from 400 to 600 mm per year.