Deserts generally lack clouds and humidity which act as a blanket to hold in the daytime heat. Once the sun sets the heat radiates back into space.
They are not cool. The sunspots are not has hot as the rest of the surface, but they are still extremely hot.
It is a cool star.
All stars are very hot. Even the comparatively "cool" ones have temperatures of thousands of degrees.
Hot air rises.
Mercury has nearly no atmosphere. Without an atmosphere, Mercury cannot reflect sunlight or trap heat. This is the reason why days on Mercury are very hot and nights are very cold. In the daytime, the solar energy directly strikes the planet's surface because there is no atmosphere to reflect heat, making a sizzling temperature of 427 Celsius (800 Fahrenheit). At night, without an atmosphere to trap heat, the solar energy escapes quickly into space, resulting in a freezing temperature of -173 Celsius (-290 Fahrenheit).
A hot desert generally has hot days and cool nights and little rain.
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There are hot deserts and there are cold deserts. Antarctica is the largest desert on earth and the days and nights are both bitterly cold. Hot deserts are hot during the day but quickly cool at night. Some cold deserts can be quite hot in the summer but bitterly cold in winter. The Gobi Desert is a good example.
Climate: desert; hot, dry summers with moderate winters :)
hot desert is hot on superficial the rodents/other anilas/insects burrow themselves deep in the desert dug some sort caves and live under when the desert cool at nights they come out in search of pray suitable
The Painted Desert is part of the larger Colorado Plateau Desert. It has a cold winter desert climate. While the summers can be quite hot, the winters can experience some bitterly cold days and nights.
A temperate desert is farther from the equator but has hotter days and colder nights.
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No, La Guajira is a cool desert.
Usually very cold (no clouds to keep the warmth in) and windy.