The colors were at peak along the glassy waters of Kolob Reservoir in Southern Utah,

Due to copious amounts of rain this summer, autumn colors will be arriving later than usual in Colorado. Mostly in October I reckon. When I was there in mid-September, there were small pockets of color but few and far between. I may try a quick trip back in a week or two.




The quick answer is that the sun stays up less during autumn. The leaves need the sunlight for photosynthesis and the trees use the sunlight plus water and carbon dioxide to produce sugars and then chlorophyll. Chlorophyll is green but when sunlight decreases during autumn, chlorophyll breaks down and other pigments take over. Colors like yellows, reds, magentas, oranges and golds appear in the leaves of the trees.

The amount of rain in a year also affects autumn leaf color. A severe drought can delay the arrival of fall colors by a few weeks. A warm, wet period during fall will lower the intensity, or brightness, of autumn colors. A severe frost will kill the leaves, turning them brown and causing them to drop early. The best autumn colors come when there’s been: