What are all the colors of fall?

Yellow is the main color, as well as red, brown, and black. Autumn is one of the four seasons of spring, summer, fall and winter. Divided in a meteorological sense, autumn in the northern temperate zone is from August 23 (heat stroke) to November 20 (light snow); in the southern temperate zone, it is from February 19 (rain in the northern hemisphere) to May 21 (light fullness in the northern hemisphere). The most noticeable changes in fall are in the trees, as cities begin to clear away large amounts of fallen leaves, and the mountains are flooded with tourists viewing the maple reds.

Fall is the season of harvest, when many plants mature. In subtropical regions of the northern hemisphere, temperatures drop significantly in the fall relative to the summer. As temperatures drop, the leaves of many deciduous perennials will gradually change color, wither, and drift off, leaving only the branches to survive the winter. And annual herbs will reach the end of their lives, withering to death throughout.

From the distribution map of the date of the beginning of autumn in China, it can be seen that the Northeast is the earliest place in the eastern part of China where the beginning of autumn comes. Into the fall, the northern cold air continues to invade, but the force is not very strong, often in the north of China to form a high autumn weather, West China often have a continuous autumn rain appeared. Temperatures drop gradually in the fall, but generally more slowly than in the winter. Due to the differences in wet and dry conditions, different regions may experience cold and rainy, or dry and cool weather conditions.