Peak fall colors in Maine are expected to wrap up a week early according to foliage experts at the state Department of Agriculture.

Since July, Maine has experienced its worst drought in more than 20 years. Fall foliage spokesperson Gale Ross says the dry weather shortens the amount of time leaves are on the trees.

"It's generally the weather going forward that determines our foliage, season length and vibrancy," Ross said. "So, we are about a week early this year."

As the days shorten and temperatures drop, trees start to break down chlorophyll — the chemical that keeps the leaves green. The absence of chlorophyll is what leaves behind the autumn hues.

Ross said the lack of groundwater affects the leaves' vibrancy — especially in maple trees.

"Maples are a shallow rooted tree. So, t

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