When did it drop this year?

Beginning of autumn time in 2023: August 8th at 2: 22: 4 1 sec.

Beginning of autumn solar terms introduction:

Beginning of autumn is the thirteenth of the twenty-four solar terms, and it is the beginning of autumn. The bucket refers to the southwest, and the sun reaches the longitude of 135, and it is celebrated on August 7 or 8 of the Gregorian calendar every year. "Reason" means the beginning; "Autumn" means that the grain is ripe. The change of the whole nature is a step-by-step process, and beginning of autumn is a turning point in which the Yang gradually closes, the Yin gradually grows, and the Yang gradually gets cloudy. In nature, everything begins to mature from luxuriance.

Meteorological changes after beginning of autumn;

Beginning of autumn doesn't mean the end of hot weather, and there is a summer solar term after beginning of autumn. Beginning of autumn is still in midsummer, but it hasn't come out yet. The second solar term came out in autumn, and it was still very hot in early autumn. As the saying goes, "the heat is at three volts." According to the calculation method of "three volts", beginning of autumn is still in the "three volts" period from summer to summer, which involves four solar terms: summer, beginning of autumn and long summer.

In the dog days of July and August, the subtropical high was strong, which controlled most parts of eastern China. Under the control of subtropical high, the weather is sunny and hot, so it is extremely hot in dog days, so it is also the hottest period of the year. Judging from the climatic characteristics, the autumn sun is like fire, beginning of autumn is hot, and many areas are still hot. Beginning of autumn is the third hot solar term among the 24 solar terms, second only to Daxia and Xiaoxia.

Autumn means rainfall, humidity, etc. It is at the turning point of the year and tends to decline or decrease. Seasonal changes, rainfall, dry and wet changes in southern China are obvious; In the north, the obvious change is the temperature.

After entering autumn, in nature, the qi of Yin and Yang began to change, everything began to grow from lush to bleak, and the climate began to transition from rainy and humid in summer to dry and rainy in autumn. Beginning of autumn indicates the beginning of seasonal changes, but it doesn't mean that the temperature will drop immediately. The last one in the dog days is after the solar terms in beginning of autumn.