1, cold dew is one of the twenty-four solar terms, and Gregorian calendar 10 comes on1October 8 or 9 every year. Cold dew solar term is the ninth solar term in autumn and the last solar term in autumn.

2. After the beginning of the cold dew solar terms, the temperature gradually decreases, and the temperature difference between morning and evening is large. At this time, frost has begun to appear in the northern region, and the weather in the southern region has turned cold and the temperature has gradually decreased.

3. Cold dew solar term is an important period of autumn harvest, and it is the time to harvest various crops, such as rice, corn, cotton and peanuts. At the same time, it is also the time for farmers to start winter storage, such as storing grain, vegetables, livestock and so on.

Cold dew solar terms custom:

1. Eating Flower Cake: As the weather is getting colder, flowers and trees are about to die. People call this "tattoo". 1999 Climbing the mountain, we still have to eat flower cakes. Because "high" and "cake" are homophonic, we should call the cake "Chongyang Flower Cake", which means "step by step". Flower cakes mainly include "coarse flower cakes", "fine flower cakes" and "money flower cakes".

2. Watch the red leaves: Watching the red leaves in Xiangshan, the highlight of the cold dew season and autumn tour, has long been a traditional habit of Beijing residents. Autumn wind is rustling and yellow leaves are red. The continuous cooling after the cold dew made the maple leaves in Beijing red. In autumn, the Xiangshan forest is dyed, and the red leaves on the mountain are as beautiful as Xiajin and picturesque.

3. Drink chrysanthemum wine: cold dew is near the Double Ninth Festival, and chrysanthemums are in full bloom. In order to get rid of autumn dryness, some areas have the custom of drinking chrysanthemum wine. Chrysanthemum wine is made of chrysanthemum with glutinous rice and distiller's yeast. It tastes cool and sweet, and has the effects of nourishing liver, improving eyesight, strengthening brain and delaying aging.