The Pampas

Pampas
Natural region
Landscape in the Pampas at eye level
Approximate location and borders of the Pampas encompassing the southeastern area of South America bordering the Atlantic Ocean
Countries	Argentina, Uruguay and Brazil
Elevation	160 m (520 ft)
Population
• Total	717,424

The Pampas (from Quechua pampa, meaning "plain") are fertile South American lowlands, covering more than 750,000 km² (289,577 sq mi), that include the Argentine provinces of Buenos Aires, La Pampa, Santa Fe, Entre Ríos and Córdoba; most of Uruguay; and the southernmost Brazilian State, Rio Grande do Sul. These vast plains are a natural region only interrupted by the low Ventana and Tandil hills near Bahía Blanca and Tandil (Argentina), with a height of 1,300 m (4,265 ft) and 500 m (1,640 ft), respectively.

The climate is warm, with precipitation of 600 to 1,200 mm (23.6 to 47.2 in), more or less evenly distributed through the year, making the soils appropriate for agriculture. This area is also one of the distinct physiography provinces of the larger Paraná-Paraguay Plain division.

The climate of the Pampas is generally temperate, gradually giving way to a more subtropical climate in the north, and to a semiarid climate on the western fringes (e.g. San Luis Province and western La Pampa Province). Summer temperatures are more uniform than winter temperatures, generally ranging from 28 to 33 °C (82 to 91 °F) during the day. However, most cities in the Pampas occasionally have high temperatures that push 38 °C (100 °F). This occurs when a warm, dry, northerly wind blows from southern Brazil. Autumn arrives gradually in March, and peaks in April and May. In April, highs range from 20 to 25 °C (68 to 77 °F) and lows from 9 to 13 °C (48 to 55 °F). The first frosts arrive in mid-April in the south, and in late May or early June in the north.