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Unified States of America located in the leading part of the North American continent, occupying a limitless section between 25 th and 57 th parallels of north latitude. To the east, washed Atlantic, in the south - the Deep of Mexico Caribbean Briny in the west and south-west - the Pacific Lots, the northern and north-west seaside of Alaska - the Arctic Ocean.
U.S. borders with Canada in the north (the tot up ultimately of 8893 km bounds, including 2,477 km in Alaska), with Mexico in the south (3141 km), with Russia in the north-west (sea frame to the Bering Narrow and the Arctic shelf, the detach between the islands of Lesser and Gargantuan Diomede, association to the Coordinated States and Russia, severally, is only 4 km) and Cuba in the south-east (the dado as the swell, the Straits of Florida, and on earth, in the U.S. naval headquarter at Guantanamo Bay, located straight away in Cuba).
The Hawaiian Islands are located in the main Pacific Ocean, a mileage of more 4000 km from the mainland. Varied archipelago territories, and in undivided bearing or another owned by the U.S., scattered across the waters of the Pacific and Atlantic oceans.
Subservient to the supervision of the Synergetic States is also a thousand of eyot territories with special bureaucratic stature (in each example in any event, it installs a classify agreement, backed by way of the conclusion of the federal authorities). These involve the eyot territory of American Samoa, Guam, Northern Mariana Islands, Marshall Islands, Federated States of Micronesia, Puerto Rico, U.S. Virgin Islands, Baker, Howland Atoll and Jarvis Island, Johnston Atoll, Midway Islet, Navassa Ait, Palmyra, Wake, Kingman Reef and some other territory.
The gross extent of the native land is about 9,360,000 square meters. km (9,820,000 cubed meters. kms - with the islands and the Guardianship Territories).
Aura and suffer
Aura USA is a abundant variety of climatic conditions. At the core of the country have identified two primary climatic dominion - East and West. The limits between them coincides with isohyet 500 mm and should be crudely along the meridian 100 ° W
Eastern region as a whole is characterized by steamy weather with an as a rule annual rainfall of 500 mm along the meridian 100 ° W to more than 1500 mm in the south-east. The pre-eminent source of shower - pleasant drizzly air coming from the Inlet of Mexico, and - to a much lesser size - from the Atlantic Ocean. Temperatures in this tract are more influenced by latitude than the pinnacle of the surface, and measure uniformly increased from north to south. As a conclude, short summers in the north and intense in the south long and spicy, and winters in the north has a crave and cold, in the south is short, and dialect right warm.
Local weather New York. Much of the eastern section source to haunt suffer changes, most of all because the flow of vexed air from the south often interrupted the masses of numbing with infiltrating from the north. Notably uneven sickly in New England, where wordy rainy seasons hurriedly replaced cloudless dry.
In the Western Territory huge topography has a true pressurize on the distribution of the atmosphere. When vlagonesuschie air masses moving from the Pacific Davy jones’s locker to the east, rising more than the high mountains, where precipitation. Commensurate with explain, the windward western slopes of the mountains is much think twice supplied with moisture, than the jumbo arid field located on the leeward side of the flood cover of mountains. Although in broad the Western Province is ingrained in the arid weather, positively b in any event annual showers ranges from less than 120 mm in the Sonora retribution to more than 2500 mm in some areas the Shore Ranges.
Temperatures in the western ambit depends on latitude and altitude, and in coastal areas studied by moderating the impact 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 biting weather. Rocky Mountains to defend them from the invasion of frigid air masses from the north.
Climatic regions. On the mainland, the U.S. gives 11 climatic regions, including four in the Eastern climatic region and seven - in the West.
Humid continental climate with momentary summers covers the northern states from North Dakota to Maine. Summer is sawn-off and there is a warm, daytime maximum temperatures (27-38 ° C) were observed in brilliant weather, much lower - in the cloud. The frost-free period, short - from less than 120 days in North Dakota to almost 180 days in the Ness Cape Cod in Massachusetts. The winters are large and deadening, again with daytime maximum temperatures under 0 ° C.
Average weather for Chicago. Normal annual precipitation ranges from 500 mm in the west to over 1000 mm on the shore of New England. At least half of the whole snowfall falls in summer, and they usually oblige vociferous character. Winter rainfall by falls as snow. Maximum condition of snow sheathe in the mountains of Latest England and firstly in the valley r.Sv. Lawrence.
Steamy continental feeling with prolonged summer includes most of the Midwest and is characterized by long lustful and soggy summer. Sizzling summer days, the supreme temperatures overstep 32 ° C, the nights are warm. The greater faction of the section frost-free span lasts from 150 to 200 days, which creates favorable conditions also in behalf of growing corn and other crops. Winters are influenza, but there are periods of kind poorly, again with fog.
Average annual precipitation ranges from 500 mm in the west to greater than 1000 mm on the slide of Unexplored England. At least half of the utter precipitation falls in summer, and they in many cases be dressed rushing character. Winter snowfall normally falls as snow. Peak capacity of snow attire in the mountains of Fresh England and remarkably in the valley r.Sv. Lawrence.
Muggy continental feeling with lengthy summer includes most of the Midwest and is characterized through lengthy hot and humid summer. Hot summer days, the highest temperatures exceed 32 ° C, the nights are warm. The greater neck of the woods of the locale frost-free period lasts from 150 to 200 days, which creates favorable conditions for growing corn and other crops. Winters are chilling, but there are periods of bland endure, habitually with fog.
Normally annual hail ranges from 500 mm in the west to wellnigh 1300 mm in the east, with their most falls in the physique of summer showers. Although snowfalls are annual, winter snowfall essentially rain.
Moist subtropical climate occupies almost the undivided country to the south of the damp continental climate. Summer is long and hot: scalding and muggy date (maximum temperature 32-38 ° C); few nights cooler, but usually not less wet. Frost-free term lasts 200 days in the north to more than 300 days on the Fiord Coast. In some years there is no winter frost. Winters everywhere the quarter are uncivil and mild, the superlative daytime temperatures of 10 to 21 ° C.
In most of the area falls year on average 1000-1500 mm of shower in the west - only 500 mm. The allotment of showers on seasonal uniform. They decrease on the whole in the kind of rain. In late summer and autumn coastal areas then suffer from tropical storms, which part company tremendous destructive force.
Humid and hot tropical ambiance is the most southern function of Florida. This is the just district truly tropical atmosphere on the mainland Collaborative States. This year globelike there are no keen-minded seasonal and routine fluctuations in temperature. Afternoon maximum temperatures are typically 21-32 ° C, and at night barely 6 ° C below. Unprejudiced as in the subtropical climate, here dear apropos comparative humidity and constantly stuffy. Norm annual rain exceeds 1500 mm, with most of their accounts for the space from May to October.
Territory not excessive maritime weather is confined to the Pacific Northwest within the Pacific regional mining area, north of San Francisco Bay. Influenced by the dominating westerly winds blowing from the Pacific Profusion, summer here is cooler and winters warmer than other places the U.S., located on the for all that latitudes. Summer is chiefly warm, limit daily temperature 21-26 ° C and nadir gloom - 10-15 ° C. Winters are non-violent, with temperatures for the most part vulnerable 0 ° C, the crest daytime temperature rises to 4-15 ° C. The frost-free period lasts from 200 up to 300 days, and chill are normally alone at night.
Weather hourly. Middling annual precipitation ranges from 750 to 3600 mm and more, with the most sticky western slopes of the Sail Ranges. Although the rains fall year spheroid, most of them in the kind of unceasing sunshower or drizzle in the lead-gray excessively falls on winter. Clouds usual winter weather, and in mosaic with frequent brown study and vapour, the withstand reminds protracted drizzle with overcast in Western Europe. Every year, winter is a some days with snowfalls, but the snow kept just on the tops of the mountains. As probably as aside the Pacific Ocean. August and September - the warmest months (+24-30 ° C), January and February - the most phlegmatic (with respect to +12 ° C) and the wettest, but at any set, the gobs breezes soothe the poorly in the direction of greater comfort. How on earth, urban smog in conjunction with the summer warmth makes the point of summer is not the a- point to by the metropolis, while contiguous to the northern and southern alternative areas in the identical period, be struck by a number bear up against conditions.
The weather of Alaska somewhat harsh, since 30% of its territory is located within the Arctic Circle. In northern and pre-eminent areas, with their sub-Arctic feeling, the thermometer in winter often relinquish to -45-50 ° C, in summer the aura was frantic to +16-20 ° C (in the northern regions - +2-6 ° C) with remarkably muffled rainfall (about 250 mm annually). In southern and key parts of the weather is equable maritime, typically summer temperature is around +18 ° C, but again the manner is quickened to +30 ° C) in winter - from -6 ° C to +4 ° C, downpour is falling from 400 to 600 mm per year.