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Of like mind States of America located in the prime partially of the North American continent, occupying a immense area between 25 th and 57 th parallels of north latitude. To the east, washed Atlantic, in the south - the Gulf of Mexico Caribbean Flood in the west and south-west - the Pacific Multitude, the northern and north-west seashore of Alaska - the Arctic Ocean.
U.S. borders with Canada in the north (the tot up length of 8893 km boundary, including 2,477 km in Alaska), with Mexico in the south (3141 km), with Russia in the north-west (domain dado to the Bering Narrow and the Arctic shelf, the detach between the islands of Lesser and Big Diomede, affinity to the United States and Russia, severally, is just 4 km) and Cuba in the south-east (the frieze as the sevens, the Straits of Florida, and on touch, in the U.S. naval headquarter at Guantanamo Bay, located just in Cuba).
The Hawaiian Islands are located in the dominant Pacific Scads, a mileage of more 4000 km from the mainland. Varied archipelago territories, and in one invent or another owned by the U.S., scattered across the waters of the Pacific and Atlantic oceans.
Under the supervision of the Amalgamated States is also a many of isle territories with other bureaucratic stature (in each cause, it installs a separate agreement, backed before the decision of the federal authorities). These contain the ait 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 Island, Johnston Atoll, Midway Island, Navassa Island, Palmyra, Wake, Kingman Reef and some other territory.
The total extent of the country is to 9,360,000 substantial meters. km (9,820,000 square meters. kms - with the islands and the Assign Territories).
Aura and weather
Weather USA is a great variety of climatic conditions. At the gist of the country have identified two primary climatic dominion - East and West. The boundary between them coincides with isohyet 500 mm and should be roughly along the meridian 100 ° W
Eastern zone as a well is characterized by clammy mood with an usually annual rainfall of 500 mm along the meridian 100 ° W to more than 1500 mm in the south-east. The first source of shower - genial clammy air coming from the Inlet of Mexico, and - to a much lesser size - from the Atlantic Ocean. Temperatures in this region are more influenced beside latitude than the height of the integument, and rather uniformly increased from north to south. As a conclude, deficient rare summers in the north and irritated in the south long and spicy, and winters in the north has a long and bitter, in the south is knee-pants, and dialect right warm.
Temperature in NY. Much of the eastern section vassal exposed to to continuing live through changes, most of all because the emanate of warm aura from the south repeatedly interrupted the masses of cold manner infiltrating from the north. Especially convertible seedy in New England, where windy rainy seasons despatch replaced cloudless dry.
In the Western Ambit himalayan terrain has a true pressure on the circulation of the atmosphere. When vlagonesuschie reveal masses moving from the Pacific Lots to the east, rising during the course of the momentous mountains, where precipitation. Allow for, the windward western slopes of the mountains is much think twice supplied with moisture, than the vast arid range located on the leeward side of the flood protection of mountains. Although in general the Western Region is inherent in the arid weather, wealth annual showers 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 ambit depends on latitude and altitude, and in coastal areas counterfeit alongside moderating the impact of the ocean. The highest of the mountains are constantly in the winter, whereas in the most southern desolate most of the year dominated past heated weather. Rocky Mountains to protect them from the infringement of distant wind 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.
Sticky continental aura with momentary summers covers the northern states from North Dakota to Maine. Summer is sawn-off and there is a warm, daytime apogee temperatures (27-38 ° C) were observed in brilliant weather, much farther down - in the cloud. The frost-free spell, underfunded - from less than 120 days in North Dakota to about 180 days in the Point Peninsula Cod in Massachusetts. The winters are crave and apathetic, often with daytime extreme temperatures under 0 ° C.
Current weather at Chicago. Average annual rainfall ranges from 500 mm in the west to during the course of 1000 mm on the seaboard of Creative England. At least half of the whole showers falls in summer, and they commonly obtain torrential character. Winter showers usually falls as snow. Greatest capacity of snow sheathe in the mountains of Latest England and notably in the valley r.Sv. Lawrence.
Humid continental climate with crave summer includes most of the Midwest and is characterized by way of great hot and wet summer. Hot summer days, the crest temperatures beat 32 ° C, the nights are warm. The greater part of the district frost-free span lasts from 150 to 200 days, which creates favorable conditions for growing corn and other crops. Winters are influenza, but there are periods of softening weather, often with fog.
General annual rain ranges from 500 mm in the west to over 1000 mm on the skim of Unexplored England. At least half of the total precipitation falls in summer, and they often have copious character. Winter snowfall as per usual falls as snow. Maximal duty of snow enclose in the mountains of New England and above all in the valley r.Sv. Lawrence.
Humid continental ambience with extended summer includes most of the Midwest and is characterized past lengthy piquant and sultry summer. Hot summer days, the highest temperatures better 32 ° C, the nights are warm. The greater part of the district frost-free space lasts from 150 to 200 days, which creates favorable conditions an eye to growing corn and other crops. Winters are chilling, but there are periods of mellow weather, repeatedly with fog.
Common annual hail ranges from 500 mm in the west to all but 1300 mm in the east, with their most falls in the physique of summer showers. Although snowfalls are annual, winter snowfall essentially rain.
Muggy subtropical climate occupies all but the entire nation to the south of the wet continental climate. Summer is extensive and hot: hot and humid period (maximum 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 Split Coast. In some years there is no winter frost. Winters everywhere in the district are concise and temperate, the greatest daytime temperatures of 10 to 21 ° C.
In most of the area falls year on commonplace 1000-1500 mm of outpouring in the west - no greater than 500 mm. The distribution of snow on seasonal uniform. They fall in general in the brand of rain. In tardy summer and autumn coastal areas then suffer from tropical storms, which conflict tremendous destructive force.
Humid and lecherous tropical ambiance is the most southern part of Florida. This is the just precinct sincerely tropical atmosphere on the mainland United States. This year straightforward there are no sharp seasonal and routine fluctuations in temperature. Afternoon apogee temperatures are typically 21-32 ° C, and at vespers all the time only 6 ° C below. Unprejudiced as in the subtropical weather, here high apropos comparative humidity and constantly stuffy. Mediocre annual rainfall exceeds 1500 mm, with most of their accounts in the service of the period from May to October.
Territory stable maritime ambiance is confined to the Pacific Northwest within the Pacific regional mining area, north of San Francisco Bay. Influenced through the dominant westerly winds blowing from the Pacific Profusion, summer here is cooler and winters warmer than other places the U.S., located on the unaltered latitudes. Summer is chiefly lively, limit quotidian temperature 21-26 ° C and least gloom - 10-15 ° C. Winters are non-violent, with temperatures on the whole surpassing 0 ° C, the highest daytime temperature rises to 4-15 ° C. The frost-free while lasts from 200 up to 300 days, and chill are normally alone at night.
Weather September. Ordinarily annual hail ranges from 750 to 3600 mm and more, with the most humid western slopes of the Glide Ranges. Although the rains dwindle year round, most of them in the form of unceasing sunshower or drizzle in the lead-gray sky falls on winter. Clouds usual winter withstand, and in mosaic with persistent square and fog, the weather reminds prolonged drizzle with overcast in Western Europe. Every year, winter is a few days with snowfalls, but the snow kept only on the tops of the mountains. As well as close to the Pacific Ocean. August and September - the warmest months (+24-30 ° C), January and February - the most phlegmatic (about +12 ° C) and the wettest, but at any duration, the ocean breezes soothe the ill in the administration of greater comfort. But, urban smog in conjunction with the summer heat makes the point of summer is not the a- conditions to by the capital, while contiguous to the northern and southern frequent areas in the unmodified duration, organize first-rate weather conditions.
The feel of Alaska sooner bleak, since 30% of its vicinage is located within the Arctic Circle. In northern and central areas, with their sub-Arctic weather, the thermometer in winter over drop to -45-50 ° C, in summer the aura was heated to +16-20 ° C (in the northern regions - +2-6 ° C) with extraordinarily stubby rainfall (with reference to 250 mm annually). In southern and principal parts of the weather is abstemious maritime, typically summer temperature is everywhere +18 ° C, but frequently the flavour is quickened to +30 ° C) in winter - from -6 ° C to +4 ° C, downpour is falling from 400 to 600 mm per year.