What kind of daytime and nighttime temperatures are typical in a desert biome?

In a desert biome, temperatures exhibit a significant diurnal variation, meaning there is a notable difference between day and night temperatures. During the day, deserts typically experience high temperatures due to direct sunlight and minimal cloud cover, leading to intense heat. Conversely, at night, the lack of moisture in the air and limited vegetation allow heat to escape rapidly, resulting in much cooler temperatures. This stark contrast is why the correct answer reflects that deserts are cold at night and hot during the day, highlighting the extreme temperature fluctuations characteristic of these biomes.