As one of the twenty-four solar terms in my country, the Beginning of Autumn is a very famous climate change. It has a very high status in people's hearts. Since ancient times, there have been many ancient poems and proverbs about the Beginning of Autumn as well as some folk customs and habits. The arrival of the Beginning of Autumn does not mean the end of the sweltering heat, but the cool breeze brings people a happy mood and a comfortable environment.

Every five days is a period

In the folk, the most common saying about the Beginning of Autumn by the older generation is "the first period is cool breeze, the second period is white dew, and the third period is Cicadas chirp." This sentence means that after the beginning of autumn, the wind at this time is different from the hot wind in summer, there will be fog on the earth in the morning, and the cicadas will start to chirp. The so-called three periods are included in every solar term. Every five days is a period, and the third period is 15 days, which is exactly the number of days in a solar term, and the dates between periods are postponed.

Characteristics of solar terms

The arrival of the Beginning of Autumn does not mean the end of the hot summer. Because the summer heat has not yet begun, the climate is still hot. Summer heat begins in the second solar term of autumn (end of heat), and the weather is still very hot during early autumn. The so-called "heat comes in three volts", and there is also a saying of "one volt after autumn". After the beginning of autumn, there will be at least "one volt" of extremely hot weather. "Three Volts" can be divided into the first, middle and last volts, and their dates are determined by the combination of the dates of the solar terms and the dates of the stems and branches. According to the calculation method of "three volts", the day of "beginning of autumn" is often still in the middle volt period, that is to say, the scorching heat has not ended, and the real coolness usually does not come until after the Bailu solar term. The dividing line between extreme heat and coolness does not occur during the Beginning of Autumn.

The evening breeze is already cool

At the beginning of autumn, the temperature difference between morning and evening has already entered. At this time, the evening breeze already has a slight chill, especially the evening wind, which is getting stronger and stronger with the autumn feeling. Bailu Sheng in the second period of Beginning of Autumn means that at this time, the weather is getting colder and colder. In the early morning, due to the large temperature difference between day and night, white mist will appear in the morning, giving a feeling of steaming mist.