Location Deciduous biomes are located primarily in the eastern half of the United States, Canada, Europe, parts of Russia, China, and Japan. Climate The average temperature of the forest is about 50 degrees F.The average amount of rainfall in the forest is 30 to 60 inches a year.As the seasons change, so do the colors of the leaves of the deciduous. During the winter months water is generally not available to keep the leaves of some plants alive.he average amount of rainfall in the forest is 30 to 60 inches a year. As the seasons change, so do the colors of the leaves of the deciduous. During the winter months water is generally not available to keep the leaves of some plants alive.