Climatic conditions in USA. Climate in different parts of USA
Mutual States of America located in the significant corner of the North American continent, occupying a vast arrondissement between 25 th and 57 th parallels of north latitude. To the east, washed Atlantic, in the south - the Space of Mexico Caribbean Briny in the west and south-west - the Pacific The depths, the northern and north-west seashore of Alaska - the Arctic Ocean.
U.S. borders with Canada in the north (the tot up to the fullest extent a finally of 8893 km bounds, including 2,477 km in Alaska), with Mexico in the south (3141 km), with Russia in the north-west (mystified purfle to the Bering Demanding and the Arctic shelf, the detach between the islands of Lesser and Big Diomede, association to the Coordinated States and Russia, severally, is just 4 km) and Cuba in the south-east (the resemble closely as the sea, the Straits of Florida, and on touch, in the U.S. naval anchor at Guantanamo Bay, located entirely in Cuba).
The Hawaiian Islands are located in the chief Pacific Scads, a haughtiness of almost 4000 km from the mainland. Varied island territories, and in chestnut form or another owned nigh the U.S., scattered across the waters of the Pacific and Atlantic oceans.
Subservient to the supervision of the Amalgamated States is also a many of island territories with other civil station (in each at all events, it installs a classify agreement, backed before the conclusion of the federal authorities). These include the island territory of American Samoa, Guam, Northern Mariana Islands, Marshall Islands, Federated States of Micronesia, Puerto Rico, U.S. Virgin Islands, Baker, Howland Ait and Jarvis Eyot, Johnston Atoll, Midway Island, Navassa Islet, Palmyra, Wake, Kingman Reef and some other territory.
The gross area of the mother country is regarding 9,360,000 square meters. km (9,820,000 square meters. kms - with the islands and the Trust Territories).
Ambience and weather
Weather USA is a horrendous contrast of climatic conditions. At the core of the countryside drink identified two major climatic region - East and West. The confines between them coincides with isohyet 500 mm and should be clumsily along the meridian 100 ° W
Eastern district as a whole is characterized close to clammy air with an usually annual rainfall of 500 mm along the meridian 100 ° W to more than 1500 mm in the south-east. The first beginning of rain - warm moist wind coming from the Inlet of Mexico, and - to a much lesser size - from the Atlantic Ocean. Temperatures in this region are more influenced by latitude than the tallness of the surface, and to a certain extent uniformly increased from north to south. As a consequence, deficient rare summers in the north and eager in the south protracted and spicy, and winters in the north has a crave and chill, in the south is short, and dialect right warm.
Weather conditions New York. Much of the eastern section vassal exposed to to continuing indisposed changes, for all practical purposes because the emanate of warm aura from the south often interrupted the masses of hyperborean with infiltrating from the north. Notably changeable climate ailing in New England, where wordy rainy seasons despatch replaced cloudless dry.
In the Western Territory mountainous ground has a excessive change on the circulation of the atmosphere. When vlagonesuschie reveal masses moving from the Pacific Lots to the east, rising more than the considerable mountains, where precipitation. Allow for, the windward western slopes of the mountains is much recovered supplied with moisture, than the never-ending arid area located on the leeward side of the flood track of mountains. Although in comprehensive the Western Tract is inborn in the arid weather, mean annual sleet ranges from less than 120 mm in the Sonora barren 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 non-natural alongside moderating the contact of the ocean. The highest of the mountains are constantly in the winter, whereas in the most southern desolate most of the year dominated via hot weather. Rocky Mountains to defend them from the invasion of cold-blooded wind 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.
Humid continental ambience with terse summers covers the northern states from North Dakota to Maine. Summer is sawn-off and there is a affable, daytime apogee temperatures (27-38 ° C) were observed in brilliant rise above, much farther down - in the cloud. The frost-free term, sweet deficient in - from less than 120 days in North Dakota to give 180 days in the Promontory Headland Cod in Massachusetts. The winters are wish and deadening, often with daytime supreme temperatures below 0 ° C.
Weather conditions for Chicago. Standard in the main annual sleet ranges from 500 mm in the west to over 1000 mm on the coast of Modern England. At least half of the overall precipitation falls in summer, and they often have vociferous character. Winter showers inveterately falls as snow. Pinnacle gift of snow extend over in the mountains of Chic England and signally in the valley r.Sv. Lawrence.
Sticky continental ambience with crave summer includes most of the Midwest and is characterized by way of protracted lustful and humid summer. Sizzling summer days, the maximum temperatures overstep 32 ° C, the nights are warm. The greater in some measure of the district frost-free age lasts from 150 to 200 days, which creates favorable conditions also in behalf of growing corn and other crops. Winters are cold, but there are periods of softening poorly, again with fog.
General annual snow ranges from 500 mm in the west to over and above 1000 mm on the coast of Unexplored England. At least half of the mount up to snowfall falls in summer, and they time after time have rushing character. Winter snowfall normally falls as snow. Maximal intelligence of snow make up for in the mountains of Modern England and above all in the valley r.Sv. Lawrence.
Steamy continental feeling with big summer includes most of the Midwest and is characterized through lengthy piquant and humid summer. Piping hot summer days, the extreme temperatures overwhelm 32 ° C, the nights are warm. The greater get of the locale frost-free span lasts from 150 to 200 days, which creates favorable conditions an eye to growing corn and other crops. Winters are depressing, but there are periods of equable sick, often with fog.
Customarily annual snowfall 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 rainfall essentially rain.
Damp subtropical mood occupies wellnigh the entire countryside to the south of the damp continental climate. Summer is extensive and heated: ardent and humid time (extreme 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 Fiord Coast. In some years there is no winter frost. Winters wholly the district are uncivil and temperate, the superlative daytime temperatures of 10 to 21 ° C.
In most of the acreage falls year on average 1000-1500 mm of rain in the west - no greater than 500 mm. The allotment of precipitation on seasonal uniform. They decrease by in the brand of rain. In tardily summer and autumn coastal areas from time to time suffer from tropical storms, which differ tremendous critical force.
Muggy and sizzling tropical climate is the most southern part of Florida. This is the only area really tropical climate on the mainland Cooperative States. This year straightforward there are no fierce seasonal and diurnal fluctuations in temperature. Afternoon maximum temperatures are typically 21-32 ° C, and at gloaming just 6 ° C below. Unbiased as in the subtropical climate, here consequential conditioned by humidity and constantly stuffy. Normally annual rainfall exceeds 1500 mm, with most of their accounts for the period from May to October.
Territory cool maritime ambiance is confined to the Pacific Northwest within the Pacific regional mining district, north of San Francisco Bay. Influenced by the prevailing 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 usually lively, upper limit quotidian temperature 21-26 ° C and reduced gloom - 10-15 ° C. Winters are mild, with temperatures on the whole vulnerable 0 ° C, the maximum daytime temperature rises to 4-15 ° C. The frost-free epoch lasts from 200 up to 300 days, and glacial are for the most part only at night.
Weather February. Middling annual rainfall ranges from 750 to 3600 mm and more, with the most humid western slopes of the Sail Ranges. Although the rains capitulation year annular, most of them in the kind of continuous rain or drizzle in the lead-gray excessively falls on winter. Clouds natural winter sick, and in mosaic with everyday brown study and fog, the weather reminds protracted drizzle with dull in Western Europe. Every year, winter is a few days with snowfalls, but the snow kept just 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 phlegmatic (wide +12 ° C) and the wettest, but at any set, 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 most superbly beat to by the capital city, while contiguous to the northern and southern alternative areas in the unmodified period, organize first-rate bear up against conditions.
The feel of Alaska somewhat sour, since 30% of its vicinage is located within the Arctic Circle. In northern and inside areas, with their sub-Arctic weather, the thermometer in winter often fall-off to -45-50 ° C, in summer the publicize was heated to +16-20 ° C (in the northern regions - +2-6 ° C) with remarkably stubby rainfall (to 250 mm annually). In southern and important parts of the climate is abstemious maritime, normally summer temperature is approximately +18 ° C, but often the manner is heated to +30 ° C) in winter - from -6 ° C to +4 ° C, precipitation is falling from 400 to 600 mm per year.