Which solar terms represent the beginning of autumn?

There are six solar terms in autumn, namely beginning of autumn, Chushu, Bailu, Autumnal Equinox, Cold Dew and First Frost. Beginning of autumn is the 13 of the 24 solar terms. On August 7th or 8th every year, beginning of autumn is considered as the time when the sun reaches 135. Beginning of autumn, the first solar term in autumn, is the starting point of autumn. Autumn begins in early autumn and ends in early winter.

(1) beginning of autumn is the first 13 solar term among the 24 solar terms in the lunar calendar, and it is also the first solar term in autumn, marking the official start of the Meng and autumn seasons: "autumn" means that summer has passed and it is cool. When we arrived in beginning of autumn, the phoenix tree began to shed its leaves, so there is an idiom "Autumn is known by falling leaves".

(2) In the hot summer, it means "out of the hot summer", which means leaving the hot summer. Summer is the14th solar term among the 24 solar terms of the lunar calendar. The time point is August 23rd, Gregorian calendar, and the sun arrives at 150. Summer solar terms mean that we are about to enter the autumn with meteorological significance. After the summer, the temperature in the area north of the Yellow River in China gradually drops.

(3) The white dew is the fifteenth solar term in the twenty-four solar terms of the lunar calendar, and it is the white dew when the sun reaches 165 degrees. As the weather gets cold, you will find many dewdrops on the ground and leaves in the morning. This is because water vapor condenses on it at night, so it is named Bailu.

(4) The autumnal equinox, the sixteenth of the 24 solar terms in the lunar calendar, generally falls on September 22nd to 24th in the Gregorian calendar. The climate in the south began to decline from this solar term.

(5) Cold dew is the seventeenth solar term in the twenty-four solar terms of the lunar calendar, which belongs to the fifth solar term in autumn, indicating the official end of the autumn season; The time is1October 7-9, 10.

(6) The first frost, one of the 24 solar terms, is about 65438+1October 23rd every year. The first frost solar term means that the weather is getting colder and the first frost appears. It is the last solar term in autumn, which also means that winter is about to begin.