What are the characteristics of autumn wind solar terms?

Characteristics of autumn wind solar terms: before the autumnal equinox, regardless of the autumnal equinox, before the autumnal equinox.

1, before the moon and the autumnal equinox

As the saying goes, "before the autumnal equinox, it must be a disaster year", which means that before the autumnal equinox, the crop growth in that year may be affected and the year is not very good.

2, regardless of the autumnal equinox

As the saying goes, "People will eat black in the coming year regardless of the autumnal equinox". The so-called "autumnal equinox" means that there is no autumnal equinox solar term after the autumnal equinox solar term, which also indicates the abnormal weather, which is also very unfavorable to crop growth and has a great impact on yield.

3. clubs before the autumnal equinox

"Social Day" is divided into spring social day and autumn social day, which is the fifth day after beginning of autumn. In 2022, before the autumnal equinox, the old saying goes, "Before the autumnal equinox, the country must be a disaster year." This old saying is similar to "before the autumnal equinox", indicating that the crops in Chengdu were not very good that year.

Meteorological changes in autumn wind

Since the autumnal equinox, the climate has three main characteristics: the direct sunlight continues to move from the equator to the southern hemisphere, and the phenomenon of short days and long nights in the northern hemisphere will become more and more obvious until the winter solstice reaches the longest night and the shortest day; The temperature difference between day and night gradually increases. The situation in the southern hemisphere is just the opposite. After the autumnal equinox, the direct sunlight moves south, the days in the northern hemisphere become shorter, the nights become longer, and the temperature drops, which is of universal significance throughout the country.

At the autumnal equinox, the Yangtze River basin and its vast northern areas in China entered the autumn divided by "climatic average temperature" one after another, and the daily average temperature dropped below 22℃. The cold air mass in the north began to have some influence. The rainy season has just ended in most areas, with a cool breeze blowing gently. Autumn is crisp and the sky is high and the clouds are light.

After the autumnal equinox, the direct sunlight moved to the southern hemisphere, and the northern hemisphere got less and less solar radiation, but the ground lost more heat and the temperature dropped significantly. Agricultural proverbs say: "An autumn rain is a cold", "The white dew is divided into autumn nights, and one night is cold".