Does the rain increase or decrease in the autumn equinox solar terms?

Does the rain increase or decrease in the autumn equinox solar terms? Increase.

According to the observation and understanding of traditional meteorology in China, it usually rains after the autumnal equinox solar terms. This is because the autumnal equinox solar term is an important dividing point in autumn, which indicates that the direct sunlight point moves to the south of the equator, and the surface temperature in the northern hemisphere begins to gradually drop, and the air becomes relatively cool. At the same time, the high content of water vapor in the atmosphere, coupled with the drop of surface temperature, led to the condensation of water vapor into clouds, and gradually formed the conditions for precipitation. Therefore, after the autumnal equinox solar terms, the trend of rainfall increase is more obvious.

As the old saying goes, "Summer is busy for half a month, and autumn is busy for forty days". The autumnal equinox season is a busy season in China. Farmers are not only busy with autumn harvest, but also busy with autumn ploughing and sowing. During this period, farmers are most afraid of continuous rainy weather. Continuous rainy weather will lead to the phenomenon that immature crops are not full, which will lead to the germination and mildew of mature crops. Therefore, in rural areas of China, there is a phenomenon of "grabbing autumn for autumn, grabbing autumn, or grabbing autumn".

This year's autumnal equinox is unusual and belongs to the "early autumnal equinox". In our country, the autumnal equinox is the middle of the unitary month. Our ancestors stipulated that if the autumnal equinox meets a festival before the unitary time, it is the "early autumnal equinox"; If the autumnal equinox is celebrated after the unitary time, it is called "late autumnal equinox".

There is another omen that it rains in the autumnal equinox. That is, it rains on the day of the autumnal equinox solar terms, which indicates that there will be more rainy weather in the future. In other words, there is plenty of rain in autumn, so why not?

The reason is that autumn, especially after the equinox solar terms, requires not only autumn harvest, but also autumn ploughing and planting. The rainfall in the autumn equinox solar terms indicates that there will be a lot of rainfall in the future, which will affect farmers' farm work. At the same time, it also indicates that the temperature in autumn is low and winter comes early.