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Temperature. During the day, desert temperatures rise to an average of 38°C (a little over 100°F). At night, desert temperatures fall to an average of -3.9°C (about 25°F).
Hot-month average temperatures are normally between 29 and 35 °C (84 and 95 °F), and midday readings of 43–46 °C (109–115 °F) are common. The world absolute heat records, over 50 °C (122 °F), are generally in the hot deserts, where the heat potential can be the highest on the planet.
The most common and accurate one is an average annual temperature of 18 0 C. If the mean annual temperature of an arid region falls above the isotherm, the region is classified as a hot desert with a hot desert climate. Cold deserts are areas whose mean annual temperatures fall below the isotherm.
Seasonal climate varies considerably in desert biomes. In the summer months, temperature ranges between 30 to 49 degrees Celsius. Little or zero precipitation occurs in the summer.
Absolute maximum air temperatures in all hot deserts exceed 40 °C (104 °F), and the highest value recorded, in Libya, is 58 °C (136.4 °F). The temperature of the soil surface can rise even beyond that of the air, with values as high as 78 °C (172 °F) recorded in the Sahara.
Most of Earth’s tropical, true desert climates occur between 15° and 30° latitude, at the poleward end of the Hadley cell circulation (see atmosphere). In the Köppen-Geiger-Pohl system, this climate is divided between the tropical desert (BWh) and subtropical desert (part of BWk) subtypes.
In deserts, temperatures are rising even faster than the global average. This warming has effects beyond simply making hot deserts hotter. For example, increasing temperatures lead to the loss of nitrogen, an important nutrient, from the soil.
Desert, any large, extremely dry area of land with sparse vegetation. It is one of Earth’s major types of ecosystems, supporting a community of plants and animals specially adapted to the harsh environment.
Which deserts experience freezing temperatures and what is the average rainfall in a desert? How do climatic conditions lead to optical phenomena such as mirages, what is their scientific basis, and can they be photographed?
Deserts usually get at most 50 centimeters (20 inches) of rainfall a year, and the organisms that live in deserts are adapted to this extremely dry climate. Plants in deserts have adaptations to conserve water.