Tropical rainforests are forests that receive more than 80 inches of rain a year.
Rainforests also have large amounts of humidity, or water vapor in the air.
The temperature in a tropical rainforest does not vary, or change, much during the year. It ranges between 70 and 80 degrees Fahrenheit at all times. Tropical rainforests never get really hot because they receive almost daily rainfall. Other areas near the equator which do not receive a great deal of rainfall have much higher average temperatures than tropical rainforests. The temperature is much the same at night as it is during the day, unlike other places where the temperature at night is much cooler than the temperature during the day.