What does the solar term white dew mean?

The solar term white dew means that the temperature drops and the weather begins to turn cold.

Millennium is the 15 solar term in the "twenty-four solar terms", and the third solar term in autumn is the end of the application of the moon in the lunar calendar and the beginning of the unitary month. Fighting fingers; The sun reaches longitude 165 degrees; Gregorian calendar September 7-9. "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.

During the white dew, the summer monsoon is gradually replaced by the winter monsoon, and the cold air changes from defense to attack. In addition, when the direct point of the sun moves south, the sunshine time in the northern hemisphere becomes shorter, the light intensity weakens, and the ground radiation dissipates heat quickly, so the cooling speed gradually accelerates. The Millennium basically ended the sweltering heat in summer, and the weather gradually turned cold, and the cold gave birth to dew condensation. The ancients used four seasons to match five elements. Autumn belongs to gold, gold and white alternate with each other, and autumn dew is described in white, hence the name "White Dew".

Millennium customs:

1, drink Bailu tea: Bailu tea is tea picked in Bailu season. There is a folk saying that "spring tea is bitter, summer tea is astringent, tea is needed, and autumn dew". At this time, after the summer heat, the tea tree is just another good growth period before and after the Millennium. Bailu tea is neither as fresh and tender as spring tea nor as dry and bitter as summer tea. It has a little too much flavor, giving people just the right feeling. Take a sip gently, and your lips and teeth will remain fragrant and full of sweetness, which is deeply loved by old tea customers.

2. Sipping rice wine: Xingning, Sandu and Lijiang in Zixing, Hunan have always had wine-making customs. Every year on the Millennium Festival, every family will make wine and drink "local wine" when receiving guests. Its wine takes glutinous rice, sorghum and other grains as raw materials, which is mild and sweet, and is called "Bailu rice wine". Jiangsu and Zhejiang also have the custom of brewing Bailu rice wine. In the old society, Bailu went to Jiangsu and Zhejiang rural areas every year, and every family made wine to entertain guests. People often brought Bailu rice wine into the city.

3. Sacrifice to Yu Wang: People living on Taihu Lake in Jiangsu will sacrifice to Yu Wang in the Millennium. Yu Wang is the legendary hero of water control, Dayu. Fishermen on Taihu Lake call him "Waterway Bodhisattva". Every year, on the eighth day of the first month, Tomb-Sweeping Day, the seventh day of July, and White Deer Festival, there will be ceremonies to burn incense to Yu Wang, among which Tomb-Sweeping Day and White Deer Spring and Autumn Festival are the largest and last for one week.

The above contents refer to Baidu Encyclopedia-White Deer.