What are the solar terms behind the autumnal equinox?

Cold dew is the seventeenth of the twenty-four solar terms. Every year in the middle of September (1October 7 or 8, 10), when the sun reaches 195, it is cold dew. "Twenty-four solar terms" said: "September solar terms, the dew is cold, it will condense."

At this time, the temperature is lower than that of "white dew" and there is more dew. The original white and crystal dew on the ground is about to condense into frost, and the chill is more intense, hence the name. Cold dew also represents the arrival of late autumn, and the climate gradually changes from cool to cold and snowy.

After the cold dew, the temperature in most parts of South China continued to drop. The average daily temperature in South China is less than 20℃. Even in the areas along the Yangtze River, it is difficult for the temperature to rise above 30℃, while the minimum temperature can drop below 10℃.

Due to global warming, the cooling date may be postponed. Except for a few valley lowlands, the five-day average temperature in the northwest plateau is generally lower than 10℃. According to the standard of dividing the four seasons by climatology, it is already winter, and first frost is thousands of miles away, which is quite different from the autumn colors in the south.

Extended data:

custom

September festival, cold dew, first frost, double ninth festival. Sunset is the most beautiful. In the past, Double Ninth Festival, New Year's Eve, Tomb-Sweeping Day and July and a half were four festivals to worship ancestors. In some places in Lingnan, Chongyang Mountain is popular, and it is also the most important day to worship ancestors and sweep graves in a year. In Lu Chunqiu Qiu Ji Ji, there is a record that "when the harvest is in September, you must worship the heavens and the earth and worship your ancestors to thank you".

In addition, there is the custom of offering sacrifices to Vulcan in season and autumn. According to the order of the twelve earthly branches, the main branch was generally used in the ancient times, and the shade was built in the first month, and the fire warehouse was in September, and the fire entered the warehouse. Northwest of the throne belongs to Luoshu Ganbu. The "fire" of the full moon in Qiu Qiu (Antares) retreated into the ground with several stars in front of the black dragon star in the northwest. "The Book of Changes, Gangua": With nine, what you see is leaderless, which is auspicious.

In traditional culture, the "fire" of autumn and autumn is retreating, and it is in the process of change. Gander is vigorous and Kunde is gentle, both of which are auspicious. In autumn and autumn, "Fire" (Antares) retired, so people held corresponding farewell ceremonies. Climbing mountains in autumn and September is also one of the customs. In autumn and September, the weather gets cold and the vegetation begins to wither. Climbing the mountain "Ci Qing" corresponds to a spring outing in March.

Solar terms health care

Tremella, lotus seed, yam, lotus root, chrysanthemum, crab, etc.

Has the effects of invigorating spleen and stomach, moistening lung, regulating stomach and intestines, benefiting qi, clearing away heat and resolving hard mass, and nourishing liver and kidney.