Why Do Leaves Change Colors in the Fall? - NBC 5 Dallas-Fort Worth
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Why Do Leaves Change Colors in the Fall?

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    NEWSLETTERS

    Why Do Leaves Change Colors in the Fall?

    It's fall in North Texas and the leaves are changing color -- but why do they change? NBC 5 Chief Meteorologist Rick Mitchell explains. (Published Friday, Nov. 2, 2018)

    It's fall in North Texas and the leaves are changing color. This occurs as the weather turns cooler combined with a decrease in daylight.

    When trees in North Texas begin to experience cooler weather, high temperatures in the 60s, it is a signal for them to stop sending water to their leaves. At the same time, the decreasing daylight leads to a stop in photosynthesis.

    Photosynthesis is a chemical reaction that takes place within the leaves that converts sunlight to a source of food energy for the tree. As photosynthesis stops, the production of chlorophyll stops. This leads to a change in the color of the leaves. The green fades away, leaving the yellow, red and orange colors.

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