RainforestThe tropical rain forest is a forest of tall trees in a region of year-round warmth. Rain forests belong to the tropical wet climate group. The temperature in a rain forest rarely gets higher than 34 °C or drops below 20 °C. Rainfall is often more than 100 inches a year. There is usually a brief season of less rain. In monsoonal areas, there is a real dry season. Almost all rain forests lie near the equator. Rainforests now cover less than 6% of Earth\'s land surface.