Sometimes, the leaves die early from a lack of water. In falls with lots of warm, cloudy, rainy weather, the leaves may have less red. The leaves make smaller amounts of sugar in the reduced sunlight. The sugar moves out of the leaves during warm nights, so the leaves have less sugar to form anthocyanins. Besides the weather, rich color depends on the eye of the beholder and the health of the tree.
Some people enjoy the first signs of yellow.
Others prefer the crazy mix of colors when orange pops out. And some say the deep reds and purples of late fall are their favorite. Trees with lots of leaves naturally make a bigger show of color. Leaves won't show much color if pests, disease, or other environmental problems have damaged them. You can see great color in your own neighborhood.