Lack of humidity in the air. The air contains much fewer water molecules that block out solar radiation than many non desert environments. Desert surfaces get more than twice the level of solar radiation than average surfaces because of that lack of moisture in the air.
Basically, without water in the air there is little to retain the heat energy from the sun after it has set.
Also, lack of clouds. Clouds block solar rays. Without them you receive more solar rays and all the things that come along with them (heat, etc.)
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Temperatures can range from -129 degrees in Antarctica to the 80s or 90s in the Mojave Desert at night in the summer.
That would depend upon which desert and your specific location in that desert.
Temperatures vary greatly between night and day in many desert regions. Typically, humidity blocks the sun's radiation. Since deserts have little to no humidity, about twice the radiation is absorbed. At night, a greater amount of heat is lost due lack of humidity. This can bring temperatures well below freezing, especially during the winter months.
Hot, dry, dusty days in summer with high night temperatures; normally sandstorms and strong wind at the change of seasons.The Sahara is a hot desert. Because there is low rainfall and little cloud cover, a lot of heat is lost at night, so there can be a high diurnal range, with very hot days and cool/cold nights. Day temperatures can exceed 55 degrees Celsius; yet can drop below freezing at night. However, night temperatures can be very hot too.
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Yes it is hot and cold in the desert. During the day, the desert heats up, which gives them their extreme temperatures. but at night, the desert is very cold.
Between May and October there is normally no rainfall. Blue sky for weeks is usual, quit warm temperatures between 18 to 22 degrees during daytime, but during the night temperatures can easily drop down to minus 7 degrees.
Desert biomes often have the greatest daily temperature change, with temperatures that can swing significantly between hot during the day and cold at night due to the lack of vegetation to retain heat.
Temperatures can range from -129 degrees in Antarctica to the 80s or 90s in the Mojave Desert at night in the summer.
Each desert has its own statistics so you need to specify a particular desert.
The Victoria Desert, located in Australia, experiences temperature extremes that can drop significantly at night, especially during winter. Overnight temperatures can fall to around 0°C (32°F) or even slightly below, while daytime temperatures can soar above 40°C (104°F) in summer. The desert's climate is characterized by these sharp contrasts between day and night temperatures.
The desert is often drier than other parts of the world and the temperatures vary greatly between night and day. Deserts are considered to be inhabitable for people who have adapted to normal conditions.
The average annual temperature in the Syrian desert near Damascus is around 17-19°C. However, temperatures can vary significantly between day and night due to the desert environment.
At night, temperatures in the Sahara Desert can drop significantly, often falling to around 25°F (-4°C) or even lower, especially during the winter months. The stark temperature difference between day and night is due to the desert's dry atmosphere, which doesn't retain heat. In summer, nighttime temperatures can still be cool, typically ranging from 50°F to 70°F (10°C to 21°C).
Antarctica is the coldest desert on earth.
In the daytime hours, the temperatures are well above 100. but at night it is actually frezing temperatures