Weather in USA. Climate in different parts of USA
Unified States of America located in the prime corner 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 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 boundary, 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 dissociate between the islands of Lesser and Large Diomede, belonging to the Joint States and Russia, separately, is solely 4 km) and Cuba in the south-east (the frieze as the breaker, the Straits of Florida, and on arrive, in the U.S. naval post at Guantanamo Bay, located entirely in Cuba).
The Hawaiian Islands are located in the main Pacific Ocean, a coolness of more 4000 km from the mainland. Varied island territories, and in one invent or another owned during the U.S., scattered across the waters of the Pacific and Atlantic oceans.
Out of sight the supervision of the Collective States is also a thousand of isle territories with distinguishable bureaucratic stature (in each cause, it installs a classify agreement, backed by way of the decision of the federal authorities). These include the ait 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 Eyot, Johnston Atoll, Midway Islet, Navassa Island, Palmyra, Wake, Kingman Reef and some other territory.
The total square footage of the mother country is about 9,360,000 square meters. km (9,820,000 honourable meters. kms - with the islands and the Trust Territories).
Climate and live through
Weather USA is a great heterogeneity of climatic conditions. At the insides of the native land drink identified two big climatic dominion - East and West. The limits between them coincides with isohyet 500 mm and should be roughly along the meridian 100 ° W
Eastern region as a usually is characterized by wet climate with an usually annual rainfall of 500 mm along the meridian 100 ° W to more than 1500 mm in the south-east. The cardinal provenience of outpouring - genial moist air coming from the Inlet of Mexico, and - to a much lesser capaciousness - from the Atlantic Ocean. Temperatures in this quarter are more influenced by latitude than the height of the exterior, and preferably uniformly increased from north to south. As a result, terse summers in the north and eager in the south dream of and hot, and winters in the north has a extended and bitter, in the south is hastily, and dialect right warm.
Temperature now NY. Much of the eastern domain branch of knowledge to continuing suffer changes, most of all because the rush of vexed flavour from the south much interrupted the masses of cold with infiltrating from the north. Especially uneven sickly in Unknown England, where windy rainy seasons quickly replaced cloudless dry.
In the Western Territory huge ground has a great influence on the circulation of the atmosphere. When vlagonesuschie air masses unfixed 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 never-ending arid field located on the leeward side of the shower track of mountains. Although in comprehensive the Western Locality is ingrained in the arid weather, of course annual showers ranges from less than 120 mm in the Sonora vacant to more than 2500 mm in some areas the Seaboard Ranges.
Temperatures in the western ambit 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 jilt most of the year dominated through biting weather. Unstable Mountains to watch over them from the invasion 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 dominion and seven - in the West.
Steamy continental ambience with momentary summers covers the northern states from North Dakota to Maine. Summer is short and there is a impassioned, daytime pinnacle temperatures (27-38 ° C) were observed in fine rise above, much take down - in the cloud. The frost-free spell, underfunded - from less than 120 days in North Dakota to approximately 180 days in the Promontory Peninsula Cod in Massachusetts. The winters are long and cold, in many cases with daytime supreme temperatures below 0 ° C.
Average weather at Chicago. Average annual downpour ranges from 500 mm in the west to over 1000 mm on the seaboard of New England. At least half of the overall showers falls in summer, and they time bear rushing character. Winter showers inveterately falls as snow. Pinnacle capacity of snow defend in the mountains of New England and notably in the valley r.Sv. Lawrence.
Damp continental climate with extensive summer includes most of the Midwest and is characterized by way of 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 district frost-free period lasts from 150 to 200 days, which creates favorable conditions in return growing corn and other crops. Winters are cold, but there are periods of serene poorly, over with fog.
Average annual rain ranges from 500 mm in the west to greater than 1000 mm on the skim of New England. At least half of the utter downpour falls in summer, and they time after time have torrential character. Winter snowfall for the most part falls as snow. Maximum intelligence of snow enclose in the mountains of Fresh England and especially in the valley r.Sv. Lawrence.
Humid continental climate with extended summer includes most of the Midwest and is characterized by protracted hot and wet summer. Unpredictable intensify summer days, the maximum temperatures pass 32 ° C, the nights are warm. The greater some of the district frost-free space lasts from 150 to 200 days, which creates favorable conditions in regard to growing corn and other crops. Winters are chilling, but there are periods of bland sick, habitually with fog.
Common annual snowfall ranges from 500 mm in the west to more 1300 mm in the east, with their most falls in the construct of summer showers. Although snowfalls are annual, winter snowfall primarily rain.
Damp subtropical climate occupies all but the unexceptional rural area to the south of the muggy continental climate. Summer is yearn and hot: hot and humid day (extreme temperature 32-38 ° C); scarcely any nights cooler, but as a rule not less wet. Frost-free period lasts 200 days in the north to more than 300 days on the Fiord Coast. In some years there is no winter frost. Winters throughout the sphere are concise and kind, the greatest daytime temperatures of 10 to 21 ° C.
In most of the area falls year on customarily 1000-1500 mm of rain in the west - at most 500 mm. The dispersal of precipitation on seasonal uniform. They decrease on the whole in the form of rain. In late summer and autumn coastal areas from time to time suffer from tropical storms, which conflict tremendous destructive force.
Moist and lecherous tropical feeling is the most southern function of Florida. This is the one district sincerely tropical atmosphere on the mainland Collaborative States. This year down there are no fierce seasonal and day after day fluctuations in temperature. Afternoon limit temperatures are typically 21-32 ° C, and at night just 6 ° C below. Just as in the subtropical feeling, here consequential conditioned by humidity and constantly stuffy. Mediocre annual showers exceeds 1500 mm, with most of their accounts on the space from May to October.
District not excessive maritime climate is confined to the Pacific Northwest within the Pacific regional mining division, north of San Francisco Bay. Influenced next to the dominant westerly winds blowing from the Pacific Ocean, summer here is cooler and winters warmer than other places the U.S., located on the verbatim at the same time latitudes. Summer is usually zealous, upper limit continually temperature 21-26 ° C and least stygian - 10-15 ° C. Winters are non-violent, with temperatures usually surpassing 0 ° C, the maximum daytime temperature rises to 4-15 ° C. The frost-free epoch lasts from 200 up to 300 days, and chill are inveterately alone at night.
Weather December. Normal annual precipitation ranges from 750 to 3600 mm and more, with the most sticky western slopes of the Coast Ranges. Although the rains fall year round, most of them in the kind of continuous volley or drizzle in the lead-gray sky falls on winter. Clouds typical winter withstand, and in combination with usual brown study and vapour, the weather reminds marathon drizzle with overcast in Western Europe. Every year, winter is a only one days with snowfalls, but the snow kept only on the tops of the mountains. As probably as by the Pacific Ocean. August and September - the warmest months (+24-30 ° C), January and February - the most deliberate (forth +12 ° C) and the wettest, but at any set, the ocean breezes soothe the ill in the supervision of greater comfort. However, urban smog in conjunction with the summer vehemence makes the outshine of summer is not the a- point to by the metropolis, while adjoining the northern and southern reserve areas in the same space, have first-rate out of sorts conditions.
The feel of Alaska somewhat bleak, since 30% of its territory is located within the Arctic Circle. In northern and medial areas, with their sub-Arctic weather, the thermometer in winter often come by to -45-50 ° C, in summer the aura was frantic to +16-20 ° C (in the northern regions - +2-6 ° C) with very down rainfall (to 250 mm annually). In southern and central parts of the weather is abstemious maritime, typically summer temperature is approximately +18 ° C, but time after time the air is intensified to +30 ° C) in winter - from -6 ° C to +4 ° C, snow is falling from 400 to 600 mm per year.