What is the temperature of the cold dew?

Approximate temperature of cold dew: the temperature is different in different regions.

Most parts of South China are above 22℃, and Hainan is even higher, above 25℃, and it has not yet come out of summer. Generally, the temperature in Jianghuai and Jiangnan ranges from 15℃ to 20℃, the temperature in southeast, north China and Huanghuai ranges from 8- 16℃, and some areas in northwest and north-central northeast have reached below 8℃.

Cold dew is the seventeenth solar term among the twenty-four solar terms and the fifth solar term in autumn. When entering the cold dew, there is cold air going south, the temperature difference between day and night is large, and autumn dryness is obvious.

In terms of climate characteristics, in the cold dew season, autumn in the south is getting stronger, the weather is sunny, and there is little rain and dryness. The vast areas in the north have entered or will enter winter from late autumn.

There is a proverb in our country called "dew is white before it is cold", which means that dew changes from a little coolness in early autumn to a little coolness in late autumn after the solar terms.

Dietary custom of cold dew

1, crab

A big custom of cold dew is to eat crabs, which are also very nutritious. The content of protein is several times higher than that of pork and fish, and the content of calcium, phosphorus, iron and vitamin A is also high. The custom of cold dew in old Nanjing is to eat crabs and wrap summer clothes.

2. Chrysanthemum wine

Cold dew is near the Double Ninth Festival. At this time, chrysanthemums are in full bloom. In order to get rid of autumn dryness, some areas have the custom of drinking "chrysanthemum wine". This custom, together with climbing, gradually moved to the Double Ninth Festival.

3. Flower cake

Because the weather is getting colder and colder, flowers and trees will soon die, so people call this "resignation." 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".

4. Cold dew tea

The so-called cold dew tea refers to the tea collected three days before and four days after the cold dew, also known as "Zhengqiu tea".

5. Sesame

There is a folk custom of "eating sesame seeds in cold dew". In Beijing, sesame-related foods have become hot items before and after the cold dew, such as sesame crisp, sesame mung bean cake, sesame biscuits and so on.

The above contents refer to Baidu Encyclopedia-Cold Dew.