- Autumnal leaf color changes have commenced earlier than usual in some US regions, including Alaska, New York, and Colorado, attributed to warmer and drier conditions.
- The Farmer's Almanac forecasts that changes will occur from now until mid-September in northern and western states, with the Midwest experiencing changes by late September.
- Peak foliage is anticipated by mid-October in areas such as New England, the Pacific Northwest, and the Blue Ridge Mountains, though the optimal viewing period typically lasts between seven and ten days and can vary with weather.
- Leaves alter their color as trees cease chlorophyll production in cooler weather, primarily affecting deciduous species like oak, birch, and beech.
- Climate change is influencing the timing of fall foliage, with warmer nights potentially delaying the season, while cool nights, sunny days, and moderate rainfall are conducive to the most vibrant colors.
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