The characteristic thunder of autumnal equinox solar terms decreases.

The autumnal equinox solar terms are characterized by a decrease in thunder.

Extended data:

The autumnal equinox is the sixteenth of the twenty-four solar terms and the fourth solar term in autumn. Fight refers to unitary; The sun reaches the yellow meridian180; Celebrated on September 22-24 of the Gregorian calendar every year. On the day of the autumnal equinox, the sun shines almost directly on the equator of the earth, and the length of day and night is equal all over the world.

The autumnal equinox means "equally divided" and "equally divided", which means equally dividing autumn except day and night. After the autumnal equinox, the position of direct sunlight moves south, and the days in the northern hemisphere become shorter, the nights become longer, the temperature difference between day and night increases, and the temperature drops day by day.

The autumnal equinox used to be the traditional "Moon Festival", and the Mid-Autumn Festival evolved from the "Autumn Moon Festival". On June 2, 2065438, People's Republic of China (PRC) * * and the State Council issued a reply on agreeing to set up "China Farmers Harvest Festival", agreeing to set up the annual autumn equinox as "China Farmers Harvest Festival" from June 20 18.

Characteristics of solar terms in autumnal equinox:

1, the weather turned cold.

The autumnal equinox solar terms are the solar terms that transition from early autumn to late autumn. By this solar term, most parts of the country have begun to enter the cool autumn. The cold air in the south meets the gradually decaying warm and humid air, and the rainfall will take away the heat on the ground and lower the surface temperature. Therefore, after the autumnal equinox, the weather will gradually cool down and the temperature difference at night will gradually widen.

2. The temperature drops

After the autumnal equinox, the direct point of the sun began to enter the southern hemisphere from the equator, and the northern hemisphere began to have shorter days and longer nights, and the day began to be shorter than the night in a day.

The significance of the autumnal equinox:

It means that in the crisp autumn, day and night are equal. The autumnal equinox solar term is located on the ninetieth day of autumn, in the middle of autumn, which means to divide autumn equally. On the day of the autumnal equinox, the sun reaches the longitude 180 (autumnal equinox), almost reaching the equator of the earth, and the length of day and night in the world is equal. After that, the daytime time will be obviously shortened, the evening time will be gradually extended, and the climate will become much more comfortable.

Agricultural proverbs of solar terms in autumnal equinox;

1, it rains in the autumn equinox, and the coming year will be rich.

Autumn equinox rain means that if it rains during the autumn equinox and solar terms, there will be a good harvest in the coming year. There are many such sayings among the people, all of which are based on many years' observation. They are catchy and easy to remember and have been passed down to this day.

On the contrary, if it doesn't rain on the day of the autumnal equinox and solar terms, the harvest performance next year will not be so good. This is a summary of the long-term experience of the ancients. Although there is no scientific basis, the accuracy rate is still relatively high, and the elderly in rural areas believe it.

2. The autumnal equinox is sunny and everything is lifeless.

Literally, if it is sunny around the autumnal equinox, or it doesn't rain at the autumnal equinox, it won't rain for a long time, which means there will be drought in winter. At this time, the weather began to turn cold and the rainfall was not too heavy. If the autumnal equinox is sunny, it will be dry for a long time, so everything behind it may not be born.

3, the autumn equinox should not be sunny, light rain is better.

If it rains on the autumnal equinox, it indicates a very good year. In addition, there is a saying that "the autumn equinox is half sunny and half cloudy, and the price of rice in the coming year is irrelevant (rice is not expensive)". This agricultural proverb means that if it rains in the autumn equinox, the grain will be bumper in the coming year, and the price of natural rice will not be expensive.

In fact, the ancients predicted that it would rain in the autumn equinox and solar terms. This does not mean that the weather will be fine in 2008. It only regards the rain in the autumnal equinox and solar terms as a good omen and expresses farmers' desire for a bumper harvest.