Because the amplitude in latitude and in the reliefs, Argentina is subject to a variety of climates. Generally, the climate is mostly temperate, with extremes ranging from subtropical to subpolar in the far north to the south.
The north is characterized by very hot and humid summers, mild winters and dry, and is subject to periodic drought.
The central Argentina has hot summers with thunderstorms (in Argentina that produces some of the most imposing Western hail the planet), and cool winters.
The southern regions have warm summers and cold winters with heavy snowfall, especially in mountainous areas. The highest areas, at all latitudes, they experience more stringent conditions.
Both the maximum temperature that the lowest ever recorded in South America have occurred in Argentina. The record for the maximum temperature of 48.8 ° C, was recorded in Rivadavia, Salta Province, on 11 December 1905. The record minimum temperature was -32.7 ° C, recorded in Sarmiento, Chubut Province, June 1, 1907.
The main winds in Argentina include:
- The cool Pampero blowing on the plains of Patagonia and the Pampas after a cold front. The first to feel the effects were the English settlers who were in the area of \u200b\u200bthe Rio de la Plata , which divides Argentina from Uruguay, they perceive it as coming from further inland and south, the pampas (grasslands ), and therefore named it Pampero . The warm moist air is stagnant on the wide prairies Argentine hit by a cold front that originates from the Pacific Ocean and southern Africa, despite losing much of its strength since it surpasses the Andean cordillera, sees the crux on Patagonia. From this extreme southern point on the north (until after the Uruguay) the warm front recedes and gives way to cold. At the point of confrontation between the two fronts, the meteorological effects of Pampero are outlined in intense bursts, sudden drops in temperature, overcast skies and water vapor in the air. During the period of spring and summer storms can easily translate into significant. This first phase accompanied by rain, sees him called Pampero Húmedo (wet), when rainfall ceased and the area is now dominated by dry face, the defining precisely him. It is likely to occur after a third stage where you have dust storms.
- The Viento Norte, a warm wind that can blow from the north in the second half of winter, creating mild conditions.
- The Zonda, a hot dry wind that affects the central-western Argentina. Stripped of all the moisture during the 6,000 meter descent from the Andes, the Zonda can blow for hours with gusts up to 120 km / h, fueling the fires and causing damage. When the Zonda blows (June-November), blizzards (viento blanco) occur at higher altitudini.Mentre is the phenomenon of "föhn viento" in western Argentina, the effects are visible in the provinces of La Rioja of San Juan, and north of Mendoza, because of the pressure provoked dali winds from the South Pacific, the height of the Andes, and various phenomena of the orographic channeling of the winds on the plateau, where the "plateau of the Puna" dissipates these venti.Il Zonda wind is the final consequence of the movimiento northeast sides of the Antarctic climate, and above cyclonic cold winds, but it is quite hot because of sunshine and adiabatic compression in the valleys of Tulum, Ullum , Zonda, and in the valley of Jachal in the province of San Juan, still dominated. At higher altitudes occurs viento blanco, full of snow, which reaches speeds above 200 km / h. This white wind at high altitude is an important source of water for the arid region of eg Cuyo, and is the main reason for the accumulation of snow at high altitudes in ghiacciai.Il zonda wind usually starts in the afternoon (between the hours of 12 and 18), and soil persistence in the following 2-12 hours, then presented with Intermittent for 2-3 days, then be followed by the entry of cold air masses moving north-northeast ( viento sur ). In 90% of cases, the phenomenon takes place between May and November.
- The Sudestada Noreaster could be considered similar to, although rarely involves snow. Both are associated with a low pressure system in winter. The Sudestada usually moderates cold temperatures but brings very heavy rains, rough seas and coastal flooding. It is more common in late autumn and winter along the coasts of central Argentina and nell'esturaio del Río de la Plata.
The southern regions, particularly the far south, experience long periods of sunshine from November to February (up to nineteen hours), and long nights from May to August.
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