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The Sahara Desert features a hot desert climate (Köppen climate classification BWh).The Sahara Desert is one of the driest and hottest regions of the world, with a mean temperature sometimes over 30 °C (86 °F) and the average high temperatures in summer are over 40 °C (104 °F) for months at a time, and can even soar to 47 °C (117 °F).
Some locations in the Sahara Desert such as Kufra, Libya, record an even drier 0.86 mm (0.034 in) of rainfall annually. The official weather station in Death Valley , United States reports 60 mm (2.4 in) annually, but in 40 months between 1931 and 1934 a total of just 16 mm (0.63 in) of rainfall was measured.
The precession of the equinoxes is regarded as the most important orbital parameter in the formation of the "green Sahara" and "desert Sahara" cycle. A January 2019 MIT paper in Science Advances shows a cycle from wet to dry approximately every 20,000 years. [3] [4]
The North African town of Ouargla, Algeria, which is located in the Sahara Desert, just experienced temperatures of 124 F, or 51 C, which may be the highest ever recorded on the continent.
The hottest average temperature on Earth is at Dallol, Ethiopia, which averages a temperature of 33.9 °C (93.0 °F) throughout the year. [5] The hottest temperature recorded within Africa, which was also the world record, was 57.8 °C (136.0 °F) at 'Aziziya, Libya, on 13 September 1922. This was later proven to be false, being derived from an ...
Many deserts, such as the Sahara, are hot year-round, but others, such as East Asia's Gobi Desert, become quite cold during the winter. [1] Temperature extremes are a characteristic of most deserts. High daytime temperatures give way to cold nights because there is no insulation provided by humidity and cloud cover. The diversity of climatic ...
Tunisia is the eighteenth most water stressed country in the world. Tunisia's climate is divided into seven bioclimatic zones, with the main difference between the north and the rest of the country being due to the Tunisian hills which separate the regions subject to a Mediterranean climate and a typical hot desert climate of the Sahara - the largest hot desert in the world.
The modern, arid Sahara. The Sahara was not a desert during the African humid period. Instead, most of northern Africa was covered by grass, trees, and lakes. The African humid period (AHP; also known by other names) was a climate period in Africa during the late Pleistocene and Holocene geologic epochs, when northern Africa was wetter than today.