Deserts are D-R-YDeserts are the driest places on Earth. They receive very little rain fall, and in some deserts it does not rain at all for years. Most deserts are very hot during the day, where the temperatures may get up to 120o Fahrenheit. However, at night it can get very cold. Daytime heat can make the rain evaporate before it reaches the ground. Deserts are found on every continent except Europe.