There is a folk saying: rain in autumn and wind in winter. In other words, if there is more rainfall in autumn than in previous years, the winter of that year is likely to be colder than in previous years, and may be accompanied by wind, snow, rain, hail and other weather. In China, autumn traditionally takes the "beginning of autumn" of 24 solar terms as the starting point of autumn. Entering autumn means that rainfall and humidity tend to decrease or decrease.
According to modern meteorology, the autumn in the north temperate zone is from August 23 to November 22, and the autumn in the south temperate zone is from February 19 to May 21.
In autumn, the Qi of yin and Yang in nature begins to change, Yang gradually recedes, Yin gradually grows, the climate changes from heat to cold, and all things grow and fall with the cold. （QiuTianYuShuiDuoDongTianHuiZenYang）