Fall foliage in Pennsylvania arrives earlier than usual due to drought conditions

In Pennsylvania, the changing of leaves is occurring earlier than expected in 2025. With the arrival of cool nights in late August and early September, noticeable color changes began. This was further accelerated by a prolonged dry weather pattern during the late summer, which has affected various tree species differently. The Pennsylvania Department of Conservation and Natural Resources (DCNR) indicated that tree species less tolerant of drought, such as maple, birch, black cherry, and yellow poplar, are changing colors rapidly and dropping leaves sooner than usually expected. In contrast, species like oaks have been less affected by dryness, retaining their green foliage much longer. With the recent rainfall that ended a 15-day drought, some areas around Pittsburgh are beginning to show early signs of fall as trees start their transformation. Particularly in western Pennsylvania, fall foliage reports show that trees in areas like the Pittsburgh region are just beginning to change, indicating that peak colors have not yet been reached. The DCNR has stated that viewers expecting to witness vibrant autumn colors should anticipate an earlier arrival, although the foliage season will be shorter overall. Foresters from the Forbes State Forest noted that the fall colors appear to be a week ahead of schedule, encouraging visitors to explore high points such as Mt. Davis for the best viewing opportunities. Clear Creek State Forest, encompassing Armstrong, Beaver, and Butler counties, has reported a chaotic start to the season, with erratic leaf changes due to the dry conditions leading to premature leaf drops. Notably, Jefferson County is currently experiencing colorful displays from red maples and yellowing birches, while other areas are struggling to maintain their leaves. Gallitzin State Forest experienced an even more pronounced arrival of fall colors, reportedly two to three weeks ahead of schedule, reinforcing the relationship between dry weather and earlier leaf color changes across the landscape. The overall consensus from forestry experts indicates that while this year's foliage might captivate viewers with its vividness, the lingering impacts of summer's dryness could limit the duration of the viewing period. Thus, visitors to Pennsylvania's forests, especially in the western regions, are encouraged to take advantage of this unique season as it may offer breathtaking sights but for a shorter time than usual.