Why do tree leaves change color in the fall?

Hipcamp staff
A scenic view of Fall Foliage

Leaves change color in the fall due to a combination of factors. These include day length, temperature, weather conditions during the growing season, tree species, nutrient availability, elevation, and wind. Day length, in particular, plays a crucial role as the days become shorter and less sunny, causing chlorophyll production to slow down and other pigments like carotenoids and anthocyanins to become more prominent.