What are the three stages of beginning of autumn and beginning of autumn?

1, beginning of autumn experienced a cool breeze for the first time. This is because in the five days after beginning of autumn, many areas of our country began to blow northward, and the warm and humid air was gradually reduced by the warm south wind, so the north wind would bring cooling to all areas. So, the cool wind is coming. Because of this, there is a folk saying that "one day in beginning of autumn, three drops of water are cool".

2. beginning of autumn Bailudi: After beginning of autumn, although it will still be hot at noon under the influence of autumn tigers, the temperature will drop in the morning and evening due to windy weather. Because of the large temperature difference between morning and evening, the humidity at night is close to the ground, so the water vapor contained in the air will condense into white fog in the morning. Especially in some coastal areas, fog often appears due to the dew phenomenon.

3. Three chilling cicadas in beginning of autumn: chilling cicada, a kind of cicada. Also known as cold insects, cold insects. This kind of cicada is smaller than the common cicada and is best at singing in early autumn. As soon as people hear the chirping of this cicada, they know that it has entered the season of beginning of autumn, and it is about to enter the real autumn, and the weather is getting colder and colder.

4. There are three periods in beginning of autumn. The ancients stipulated that every five days is a period, and each solar term is divided into three periods. People end the corresponding natural phenomena for each period, so that people can better understand the changing law of solar terms.