What do the first frost and the first frost solar terms mean?

1, the first frost solar term refers to the transition period from autumn to winter, which indicates the coming of winter. The first frost is the last solar term in autumn, and its climate is characterized by dryness, falling temperature and large temperature difference between morning and evening. In the first frost season, the temperature difference between day and night in southern China is large, and it is slightly cold in the morning and evening; But it's winter in the north.

2. In the first frost season, the temperature difference between day and night in southern China is large, and it is slightly cold in the morning and evening. However, the northern region has already entered winter. For example, the average temperature in eastern and northwestern Inner Mongolia is below 0℃. Because of the different temperatures, the growth of crops in the two places is also different. In the south, it's harvest season, so we have to harvest rice, pick cotton and turn over the soil. In the north, the harvest has been completed. In particular, many people will associate "first frost" with "frosting", but they are not related. Because the "frost" in the "first frost" is the condensation of water vapor on the ground due to temperature difference changes, rather than falling from the sky.

3. The customs of the first frost solar terms include sweeping graves to worship ancestors, climbing mountains, eating persimmons, sending taro ghosts and enjoying chrysanthemums. Climbing mountains in the first frost is an ancient custom. Because rock climbing can not only ventilate people's lungs, strengthen their physique, but also cultivate their sentiments, it has been passed down to this day. The first frost in Quanzhou and other places in China has the custom of eating persimmons. Because they think that if you eat shuttlecock in the first frost, your lips will not be chapped all winter. Moreover, persimmon itself has the function of keeping warm and strengthening bones and muscles.