Did you know that red fall color is dependent on weather conditions? If there’s bright sunny days followed by cool crisp nights we will get an abundance of red leaf color in fall and that has been happening up here in the Chicagoland region this year. Yellow and orange color is consistent from one year to the next because it’s not dependent on whether. The chemicals that make those colors are in the leaf all year round and as soon as chlorophyll stops being made by the tree, the yellow and orang