Deserts become very cold at night

You know the deserts are very hot places, but did you know that they can become very cold at night? The sky above a desert is usually very clear. So during the day, the ground absorbs most of the sunlight that strikes it, heating the surrounding air.

At night the reverse happens. Since there are no clouds over a desert to trap the heat, the land gives off heat rapidly, and it becomes very chilly. In fact, though daytime temperatures in the desert average 38 c, in some deserts it can get down to -4 c at night.

Tags: deserts, temperature, weather