![]() Unhealthy aspen stands are less likely to have vibrant colors.Īccording to the United States National Arboretum, a wet growing season followed by a dry, sunny autumn with cool, frost-free nights results in the brightest fall colors. October 6 -13 : Regions: Western Maine (Zone 5) This is the best week for peak color in central Maine. Leaf peep at locations like Aroostook State Park, Route 11, Eagle Lake Public Land, Mount Kineo and Rockwood. The more robust an aspen stand is, the more attractive its colors will be. Maines hillsides are beginning to blush with more than half of the trees displaying fall colors. Healthy trees are critical for aspens to display strong colors and retain leaves later into the fall. ![]() Be flexible, adventurous and stick to the easier-to-predict leaf factors - such as elevation, latitude and stand health - when planning an outing. Your favorite spot one year can turn out to be a disappointment the next. Stay up to date with the best autumn hikes, drives, events and travel deals. So many factors can make a leaf-peeping adventure tough to schedule. Lower, more southerly locations will follow.Īspens take their cue to change as the days get shorter in the fall.īut color changes also depend on tree health, local weather, environmental factors like drought or increased moisture, elevation and latitude. How do you know when it’s time to go? In general, September and early October mark when stands at higher elevation (and those that are farther north) will show colors. Fall colors usually peak from mid October into early November across central and southeast Illinois.Timing when and where to see Colorado’s fall colors takes both science and finesse. Prepare to see the ultimate Flagstaff fall colors in 2023 by using the Flagstaff LEAFometer to check the changing fall colors throughout autumn. Some trees across central Illinois begin to change colors during late September. When warm, cloudy and rainy weather dominates the fall season, leaves tend to have less coloration. Leaves directly exposed to the sun may turn red, while those on the shady side may be yellow. The degree of color may also vary from tree to tree. A few hard frosts can cause the leaves to wither and fall from the tree without changing color. The chlorophyll breaks down, the green color disappears, and the yellowish colors or other pigments already in the leaf become visible.Īutumn weather conditions favoring the most brilliant colors are warm sunny days and cool, but not freezing, nights. In the fall, the decrease in intensity and duration of sunlight, and the cooler temperatures, cause the leaves to stop their food-making process. The chlorophyll absorbs energy from sunlight, and uses it in transforming carbon dioxide and water to carbohydrates, such as sugars and starch. Change in coloring is the result of chemical processes, which take place in the tree as the seasons change.ĭuring the spring and summer, a food-making process takes place in the leaves, within cells containing the pigment chlorophyll. Leaves begin to turn before we have any frosts. Many people think that cold weather is solely responsible for the color change in leaves, but not so. ![]() Fall Colors across the United States - US Forest Service The map, which tracks the turning of fall leaves, will help you figure our when the trees are at peak autumnal colors in your area.
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