The Great Victoria desert is a World Wildlife Fund ecoregion and an Interim Biogeographic Regionalisation for Australia region of the same name. Summer daytime temperatures range from 32 to 40 ☌ (90 to 104 ☏), while in winter, this falls to 18 to 23 ☌ (64 to 73 ☏). Thunderstorms are relatively common in the Great Victoria Desert, with an average of 15–20 thunderstorms yearly. Average annual rainfall is low and irregular, ranging from 200 to 250 mm (7.9 to 9.8 in) per year. ![]() The Western Australian mulga shrublands ecoregion lies to the west, the Little Sandy Desert to the northwest, the Gibson Desert and the Central Ranges xeric shrublands to the north, the Tirari-Sturt stony desert to the east, and the Nullarbor Plain to the south separates it from the Southern Ocean. It is over 700 km (430 mi) wide (from west to east) and covers an area of 348,750 km 2 (134,650 sq mi) from the Eastern Goldfields region of Western Australia to the Gawler Ranges in South Australia. The Great Victoria is the largest desert in Australia, and consists of many small sandhills, grassland plains, areas with a closely packed surface of pebbles (called desert pavement or gibber plains), and salt lakes. ![]() NASA - Visible Earth, the Great Victoria Desert is in the center of the image, north of the Nullarbor Plain.
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