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Unified States of America located in the central partially of the North American continent, occupying a immense arrondissement between 25 th and 57 th parallels of north latitude. To the east, washed Atlantic, in the south - the Bay of Mexico Caribbean Sea in the west and south-west - the Pacific Ocean, the northern and north-west coast of Alaska - the Arctic Ocean.
U.S. borders with Canada in the north (the tot up magnitude of 8893 km borders, including 2,477 km in Alaska), with Mexico in the south (3141 km), with Russia in the north-west (mystified dado to the Bering Narrow and the Arctic shelf, the dissociate between the islands of Lesser and Large Diomede, association to the Coordinated States and Russia, severally, is just 4 km) and Cuba in the south-east (the dado as the sevens, the Straits of Florida, and on land, in the U.S. naval headquarter at Guantanamo Bay, located entirely in Cuba).
The Hawaiian Islands are located in the chief Pacific Scads, a mileage of there 4000 km from the mainland. Uncountable holm territories, and in whole make or another owned during the U.S., scattered across the waters of the Pacific and Atlantic oceans.
Subservient to the supervision of the Collective States is also a number of key territories with different bureaucratic stature (in each example in any event, it installs a separate bargain, backed by the finding of the federal authorities). These involve the island turf of American Samoa, Guam, Northern Mariana Islands, Marshall Islands, Federated States of Micronesia, Puerto Rico, U.S. Virgin Islands, Baker, Howland Islet and Jarvis Eyot, Johnston Atoll, Midway Islet, Navassa Islet, Palmyra, Wake, Kingman Reef and some other territory.
The complete area of the native land is to 9,360,000 substantial meters. km (9,820,000 honourable meters. kms - with the islands and the Credit Territories).
Climate and live through
Aura USA is a horrendous heterogeneity of climatic conditions. At the insides of the country drink identified two primary climatic dominion - East and West. The bounds between them coincides with isohyet 500 mm and should be unsympathetically along the meridian 100 ° W
Eastern district as a whole is characterized by clammy air with an commonplace annual rainfall of 500 mm along the meridian 100 ° W to more than 1500 mm in the south-east. The cardinal source of outpouring - warm moist song coming from the Inlet of Mexico, and - to a much lesser capaciousness - from the Atlantic Ocean. Temperatures in this quarter are more influenced aside latitude than the elevation of the surface, and to a certain extent uniformly increased from north to south. As a emerge, brief summers in the north and eager in the south protracted and acrid, and winters in the north has a extensive and chill, in the south is knee-pants, and very warm.
Temperature now NY. Much of the eastern jurisdiction branch of knowledge to continuing suffer changes, for all practical purposes because the emanate of warm breath from the south often interrupted the masses of cold allied infiltrating from the north. Notably uneven climate ailing in Unknown England, where talkative rainy seasons despatch replaced cloudless dry.
In the Western Region huge territory has a celebrated change on the motion of the atmosphere. When vlagonesuschie aerate masses impressive from the Pacific Lots to the east, rising upwards the great mountains, where precipitation. Interest, the windward western slopes of the mountains is much recovered supplied with moisture, than the jumbo arid district located on the leeward side of the rain cover of mountains. Although in broad the Western Province is hereditary in the arid weather, of course annual showers ranges from less than 120 mm in the Sonora desert to more than 2500 mm in some areas the Coast Ranges.
Temperatures in the western region depends on latitude and altitude, and in coastal areas studied past moderating the contact of the ocean. The highest of the mountains are constantly in the winter, whereas in the most southern empty most of the year dominated by heated weather. Rocky Mountains to protect them from the infringement of cold zephyr 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.
Sticky continental ambiance with terse summers covers the northern states from North Dakota to Maine. Summer is short and there is a impassioned, daytime apogee temperatures (27-38 ° C) were observed in fair climate ailing, much lower - in the cloud. The frost-free period, underfunded - from less than 120 days in North Dakota to about 180 days in the Ness Point Cod in Massachusetts. The winters are large and apathetic, often with daytime supreme temperatures lower 0 ° C.
Weather now in Chicago. Standard in the main annual sleet ranges from 500 mm in the west to onto 1000 mm on the strand of New England. At least half of the unqualified drizzle falls in summer, and they often obtain rushing character. Winter precipitation normally falls as snow. Pinnacle province of snow sheathe in the mountains of Latest England and especially in the valley r.Sv. Lawrence.
Humid continental ambience with crave summer includes most of the Midwest and is characterized on elongated hot and humid summer. Sizzling summer days, the supreme temperatures overstep 32 ° C, the nights are warm. The greater faction of the section frost-free period lasts from 150 to 200 days, which creates favorable conditions for growing corn and other crops. Winters are cold, but there are periods of serene survive, again with fog.
General annual rain ranges from 500 mm in the west to greater than 1000 mm on the strand of New England. At least half of the unqualified downpour falls in summer, and they on numerous occasions take vociferous character. Winter snowfall as per usual falls as snow. Highest point intelligence of snow enclose in the mountains of Unfamiliar England and remarkably in the valley r.Sv. Lawrence.
Steamy continental ambience with extended summer includes most of the Midwest and is characterized through lengthy peppery and wet summer. Piping hot summer days, the extreme temperatures exceed 32 ° C, the nights are warm. The greater neck of the woods of the area frost-free span lasts from 150 to 200 days, which creates favorable conditions pro growing corn and other crops. Winters are chilling, but there are periods of equable endure, repeatedly with fog.
Average annual snowfall ranges from 500 mm in the west to wellnigh 1300 mm in the east, with their most falls in the construct of summer showers. Although snowfalls are annual, winter rainfall at bottom rain.
Damp subtropical feel occupies wellnigh the entire nation to the south of the humid continental climate. Summer is long and heated: scalding and muggy period (limit temperature 32-38 ° C); only one nights cooler, but on the whole not less wet. Frost-free aeon lasts 200 days in the north to more than 300 days on the Separation Coast. In some years there is no winter frost. Winters wholly the district are short and mellow, the maximum daytime temperatures of 10 to 21 ° C.
In most of the area falls year on customarily 1000-1500 mm of shower in the west - at most 500 mm. The dispersal of downpour on seasonal uniform. They fall in general in the kind of rain. In tardy summer and autumn coastal areas then suffer from tropical storms, which part company tremendous bad force.
Muggy and sizzling tropical ambiance is the most southern say of Florida. This is the just area truly tropical ambience on the mainland Cooperative States. This year down there are no sharp seasonal and diurnal fluctuations in temperature. Afternoon limit temperatures are typically 21-32 ° C, and at gloaming barely 6 ° C below. Fair-minded as in the subtropical weather, here consequential applicable humidity and constantly stuffy. Normally annual showers exceeds 1500 mm, with most of their accounts object of the duration from May to October.
Territory not excessive maritime climate is confined to the Pacific Northwest within the Pacific regional mining department, north of San Francisco Bay. Influenced via the influential westerly winds blowing from the Pacific The depths, summer here is cooler and winters warmer than other places the U.S., located on the unaltered latitudes. Summer is as usual irritated, limit common temperature 21-26 ° C and least stygian - 10-15 ° C. Winters are non-violent, with temperatures for the most part exposed to 0 ° C, the maximum daytime temperature rises to 4-15 ° C. The frost-free epoch lasts from 200 up to 300 days, and ice-cold are for the most part lone at night.
Weather for today. Ordinarily annual rainfall ranges from 750 to 3600 mm and more, with the most humid western slopes of the Glide Ranges. Although the rains dwindle year about, most of them in the character of endless rain or drizzle in the lead-gray empyrean falls on winter. Clouds natural winter withstand, and in mosaic with persistent stifle bewilder and fog, the withstand reminds prolonged drizzle with darkened in Western Europe. Every year, winter is a scarcely any days with snowfalls, but the snow kept only on the tops of the mountains. As correctly as aside the Pacific Ocean. August and September - the warmest months (+24-30 ° C), January and February - the most cool (with respect to +12 ° C) and the wettest, but at any time, the profusion breezes soothe the ill in the administration of greater comfort. However, urban smog in conjunction with the summer vehemence makes the outshine of summer is not the most superbly conditions to by the capital city, while contiguous to the northern and southern alternative areas in the same period, organize excellent bear up against conditions.
The climate of Alaska sooner harsh, since 30% of its territory is located within the Arctic Circle. In northern and central areas, with their sub-Arctic climate, the thermometer in winter on numerous occasions come by to -45-50 ° C, in summer the affiliated to was tempestuous to +16-20 ° C (in the northern regions - +2-6 ° C) with sheerest low rainfall (with reference to 250 mm annually). In southern and key parts of the feeling is equable maritime, average summer temperature is everywhere +18 ° C, but again the quality is frenzied to +30 ° C) in winter - from -6 ° C to +4 ° C, precipitation is falling from 400 to 600 mm per year.