Amazonian rainforest receives about 9 feet of rain every year. Fifty percent of this returns to the atmosphere through the foliage of trees. Most of the Amazon River’s water comes from the annual snowmelt high in the Peruvian Andes.
High temperatures and the amount of rain are the same throughout the year in Amazonian rainforest. The climate is warm and humid, with average temperatures around 79° F. The difference between day and night time temperatures is greater than those between seasons.