Will it rain in the Millennium solar terms?

One argument is that the continuous rain in the Millennium is not conducive to the bumper harvest of grain; Another way of saying it is that the once-in-a-thousand-year rain is good for harvesting and drying crops, which can make them sell at a good price.

First of all, the Millennium

1 is 15 of the "24 solar terms", and the third solar term in autumn is the end of the applicable month and the beginning of the unitary month in the dry calendar. Fighting fingers; The sun reaches longitude 165 degrees; Gregorian calendar September 7-9.

2. "White dew" is an important solar term reflecting the growth of cold in nature. As the cold air turns to attack, it is sunny and hot during the day, but the temperature drops rapidly after the evening, and the temperature difference between day and night gradually widens.

Second, the historical origin

The solar terms of 1 and 24 are special festivals in the calendar to express the change of natural rhythm and establish "December architecture". Four years old, three months in spring, summer, autumn and winter, two solar terms each month, each solar term has its own unique meaning.

2. Millennium is the fifteenth of the twenty-four solar terms. This solar term marks the end of the Qiu Meng season and the beginning of the Mid-Autumn Festival, which is an important festival reflecting the temperature changes in nature.

3. According to the explanation of "white dew" in the twenty-four solar terms-"soil and water condense moisture, autumn is gold, gold and white, white dew is color, and qi begins to be cold".

Third, meteorological changes.

1. After entering the Millennium solar term, the summer monsoon is gradually replaced by the winter monsoon, and the cold air gradually moves southward, so does the position where the sun directly touches the ground.

2. In the northern hemisphere, the sunshine time is shortened, the sunshine intensity is weakened, and it is often partly cloudy and sunny at night, and the ground radiation is fast, and the temperature drop is gradually accelerated. There's a saying, "It's a thousand years in autumn, and it's cold all night."

3. After the Millennium, the temperature difference between day and night gradually widened. Although the temperature is high at noon during the day, it is already very cold in the morning and at night. According to the standard of "average temperature" put forward by modern scholar Zhang Baokun, the four seasons are divided.

4. The average temperature 10-22℃ is spring or autumn. According to this standard, from the beginning of the Millennium solar term, all localities began to enter autumn one after another. At this time, the temperature difference between day and night in China can reach 8℃- 16℃, so the Millennium is a solar term with a large temperature difference in a year.