What season is the first frost and what is the first frost?

1, the first frost is one of the 24 solar terms. Every year around Gregorian calendar1October 23rd 10, the first frost solar term means that the weather is getting colder and the first frost appears. It is the last solar term in autumn and also means the beginning of winter. Health care is particularly important in the first frost season. There is a folk saying that it is better to make up the first frost in one year, which shows the influence of this solar term on us.

2. The first frost is the last solar term in autumn, which is the transition from autumn to winter. There is a lot of heat dissipation on the ground in autumn, and the temperature suddenly drops below 0 degrees. Water vapor in the air directly condenses on the ground or plants to form fine ice needles, and some become hexagonal frost flowers, which are white and loose in structure. Frost can only form in sunny days. People say that thick frost is fierce in the sun.

3. The solar term of the first frost means that the weather is getting colder and first frost begins. The average temperature in the northeast, eastern Inner Mongolia and most of the northwest has been below 0℃, the soil has frozen, and the winter crops have stopped growing and entered the wintering period. To the south of latitude, the average temperature is around 16℃, and there are two or three solar terms before the first frost day. In the southern valley of South China, frost can only be seen in the dead of winter.