Many people mistakenly believe that weather makes leaves change color. While this is not true, weather can affect how vibrantly the colors appear.
It happens every autumn: the big green leaves on the trees turn yellow, red, brown, and orange and fall to the ground. Watch this video to find out why this happens.
You may be surprised to learn that each leaf has small amounts of other colors in it year-round, even if we can't see them. During the spring and summer, chlorophyll overpowers the other colors, and all we see is green. With less chlorophyll to give the leaf its vibrant green color, we begin to see the other colors, such as orange, yellow, and red, which have been there all along.