Frost season features: morning and evening weather is colder, midday is hotter, the temperature difference between day and night is large, autumn dryness is obvious. Frost season customs: 1, eat persimmons: many regions in China have the habit of eating persimmons in the frost, in the view of the local people, so that not only can keep warm, but also make up the muscles and bones. 2, chrysanthemums: ancient times, there is "frost chrysanthemums bloom", so chrysanthemums have also become a frost seasonal elegant thing. 3, tonic: folk have "Completion of the winter is not as good as complementary frost," said, after the arrival of frost, people will eat some complementary food.

4, climb high and far away: ancient frost season has climb high and far away custom, climb high and so on to enhance physical fitness, prevention and treatment of disease, but also can cultivate the will of people, cultivate the sentiment. 5, sweeping the tomb to pay homage to the ancestors: according to the "qingtongli" said: "the year of the cold food and frost festival, to worship and clean up the expansion of the Tsuen, the period of the suits to go to the tomb, with the wine written and the diamond shear grass and wood of the device; weekly service to seal the tree, cut out the thorns and grasses, so it is called Sweep the tomb."

Frost, is the eighteenth of the twenty-four solar terms, the last of the fall. The dou refers to the eleventh day of the month; the sun's yellow longitude is 210°; it intersects the festival on October 23-24 of the Gregorian calendar each year.

After entering the Frost Festival, the late fall scenery is obvious, and cold air is coming south more and more frequently. Frost does not mean "frost", but rather a sudden drop in temperature and a big difference between day and night temperatures. On average across the country, "frost" is the time of year with the greatest difference between day and night temperatures.