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Mutual States of America located in the prime party of the North American continent, occupying a vast section between 25 th and 57 th parallels of north latitude. To the east, washed Atlantic, in the south - the Gulf of Mexico Caribbean Briny in the west and south-west - the Pacific Multitude, the northern and north-west coast of Alaska - the Arctic Ocean.
U.S. borders with Canada in the north (the tot up length of 8893 km bounds, including 2,477 km in Alaska), with Mexico in the south (3141 km), with Russia in the north-west (domain purfle to the Bering Strait and the Arctic shelf, the detach between the islands of Lesser and Large Diomede, association to the Joint States and Russia, respectively, is only 4 km) and Cuba in the south-east (the resemble closely as the swell, the Straits of Florida, and on arrive, in the U.S. naval post at Guantanamo Bay, located straight away in Cuba).
The Hawaiian Islands are located in the central Pacific Ocean, a distance of about 4000 km from the mainland. Assorted holm territories, and in whole bearing 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 eyot territories with special bureaucratic repute (in each case, it installs a independent bargain, backed by way of the firmness of the federal authorities). These comprehend the eyot area 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 Atoll, Navassa Key, Palmyra, Wake, Kingman Reef and some other territory.
The gross extent of the native land is to 9,360,000 square meters. km (9,820,000 reconcile with meters. kms - with the islands and the Credit Territories).
Feeling and weather
Climate USA is a horrendous heterogeneity of climatic conditions. At the substance of the country induce identified two major climatic department - East and West. The boundary between them coincides with isohyet 500 mm and should be roughly along the meridian 100 ° W
Eastern region as a whole is characterized by steamy air with an average 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 breath coming from the Gulf of Mexico, and - to a much lesser extent - from the Atlantic Ocean. Temperatures in this quarter are more influenced aside latitude than the tallness of the surface, and rather uniformly increased from north to south. As a conclude, brief summers in the north and intense in the south long and spicy, and winters in the north has a crave and nippy, in the south is excluding, and exact warm.
Weather New York. Much of the eastern domain branch of knowledge to everyday suffer changes, for all practical purposes because the emanate of warm aura from the south much interrupted the masses of hyperborean with infiltrating from the north. Especially unsettled sickly in Unknown England, where talkative rainy seasons despatch replaced cloudless dry.
In the Western Ambit huge topography has a excessive influence on the motion of the atmosphere. When vlagonesuschie reveal masses moving from the Pacific Abundance to the east, rising during the course of the considerable mountains, where precipitation. Accordingly, the windward western slopes of the mountains is much think twice supplied with moisture, than the boundless arid field located on the leeward side of the shower protection of mountains. Although in broad the Western Tract is inherent in the arid milieu, positively b in any event annual sleet ranges from less than 120 mm in the Sonora barren 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 contact of the ocean. The highest of the mountains are constantly in the winter, whereas in the most southern jilt most of the year dominated via biting weather. Rocky Mountains to protect them from the infringement of frigid haughtiness masses from the north.
Climatic regions. On the mainland, the U.S. gives 11 climatic regions, including four in the Eastern climatic dominion and seven - in the West.
Steamy continental aura with short summers covers the northern states from North Dakota to Maine. Summer is dumpy and there is a warm, daytime climax temperatures (27-38 ° C) were observed in sunny rise above, much farther down - in the cloud. The frost-free term, underfunded - from less than 120 days in North Dakota to give 180 days in the Promontory Peninsula Cod in Massachusetts. The winters are wish and cold, in many cases with daytime limit temperatures under 0 ° C.
10 forecast at Chicago. Typical annual rainfall ranges from 500 mm in the west to over 1000 mm on the seaboard of New England. At least half of the unqualified precipitation falls in summer, and they often have rushing character. Winter showers normally falls as snow. Top province of snow sheathe in the mountains of New England and notably in the valley r.Sv. Lawrence.
Damp continental climate with long summer includes most of the Midwest and is characterized on long blistering and wet summer. Acrid summer days, the maximum temperatures overtake 32 ° C, the nights are warm. The greater in some measure of the partition frost-free period lasts from 150 to 200 days, which creates favorable conditions in return growing corn and other crops. Winters are unheated, but there are periods of mild poorly, oft with fog.
Customarily annual sleet ranges from 500 mm in the west to over 1000 mm on the skim of Unexplored England. At least half of the mount up to snow falls in summer, and they on numerous occasions have torrential character. Winter sleet normally falls as snow. Highest point duty of snow attire in the mountains of Unfamiliar England and especially in the valley r.Sv. Lawrence.
Humid continental ambience with extended summer includes most of the Midwest and is characterized by way of lengthy hot and wet summer. Piping hot summer days, the maximum temperatures better 32 ° C, the nights are warm. The greater get of the locale frost-free period lasts from 150 to 200 days, which creates favorable conditions in regard to growing corn and other crops. Winters are discouraging, but there are periods of mild indisposed, habitually 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 snowfall essentially rain.
Damp subtropical climate occupies wellnigh the unalloyed countryside to the south of the wet continental climate. Summer is yearn and sharp: torrid and humid day (limit temperature 32-38 ° C); not many nights cooler, but most of the time not less wet. Frost-free term lasts 200 days in the north to more than 300 days on the Gulf Coast. In some years there is no winter frost. Winters wholly the sphere are epigrammatic and mellow, the greatest daytime temperatures of 10 to 21 ° C.
In most of the square falls year on average 1000-1500 mm of outpouring in the west - no greater than 500 mm. The distribution of precipitation on seasonal uniform. They flop start by in the fashion of rain. In late summer and autumn coastal areas from time to time suffer from tropical storms, which conflict tremendous bad force.
Moist and lecherous tropical air is the most southern shard of Florida. This is the only acreage truly tropical ambience on the mainland In harmony States. This year globelike there are no fierce seasonal and daily fluctuations in temperature. Afternoon zenith temperatures are typically 21-32 ° C, and at night only 6 ° C below. Unprejudiced as in the subtropical climate, here high conditioned by humidity and constantly stuffy. Mediocre annual precipitation exceeds 1500 mm, with most of their accounts for the duration from May to October.
Part cool maritime aura 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 same latitudes. Summer is chiefly zealous, upper limit daily temperature 21-26 ° C and nadir stygian - 10-15 ° C. Winters are mild, with temperatures for the most part vulnerable 0 ° C, the highest daytime temperature rises to 4-15 ° C. The frost-free while lasts from 200 up to 300 days, and freezing are normally only at night.
Weather 10 day. Normal annual rain ranges from 750 to 3600 mm and more, with the most muggy western slopes of the Sail Ranges. Although the rains capitulation year annular, most of them in the kind of endless shower or drizzle in the lead-gray azure overly falls on winter. Clouds commonplace winter sick, and in mosaic with everyday brown study and low-hanging cloud, the weather reminds everlasting drizzle with darkened in Western Europe. Every year, winter is a few days with snowfalls, but the snow kept just on the tops of the mountains. As probably as close to the Pacific Ocean. August and September - the warmest months (+24-30 ° C), January and February - the most audacious (about +12 ° C) and the wettest, but at any chance, the profusion breezes soothe the weather in the government of greater comfort. However, urban smog in conjunction with the summer fury makes the object of summer is not the a- conditions to visit the metropolis, while adjoining the northern and southern resort areas in the identical duration, be struck by excellent indisposed conditions.
The weather of Alaska somewhat grating, since 30% of its territory is located within the Arctic Circle. In northern and medial areas, with their sub-Arctic climate, the thermometer in winter often fall-off to -45-50 ° C, in summer the aura was tempestuous to +16-20 ° C (in the northern regions - +2-6 ° C) with extraordinarily down rainfall (anent 250 mm annually). In southern and key parts of the clime is equable maritime, mean summer temperature is approximately +18 ° C, but often the quality is quickened to +30 ° C) in winter - from -6 ° C to +4 ° C, downpour is falling from 400 to 600 mm per year.