Why are the other colored pigments in leaves not seen during the summer months?

During the summer months, chlorophyll, the green pigment in leaves, is dominant because it efficiently captures sunlight for photosynthesis. As chlorophyll breaks down in the fall, other pigments such as carotenoids (yellow and orange) and anthocyanins (red and purple) become more visible. The warmer temperatures and longer daylight hours in summer also support high chlorophyll production, masking the colors of these other pigments. Once chlorophyll production decreases, these pigments can be seen as the leaves change color.