The first frost solar term, what does the first frost mean, and what does the first frost represent?

The first frost is the eighteenth of the twenty-four solar terms and the last solar term in autumn. Fight with your fingers; The solar calendar is 210; Salary will be paid every year on the Gregorian calendar 10,123-24 October. The first frost solar terms are characterized by cold weather in the morning and evening, hot weather at noon and large temperature difference between day and night.

Because "frost" is a manifestation of cold weather and large temperature difference between day and night, it is named "first frost", which means "sudden drop in temperature and large temperature difference between day and night". The first frost solar term, everything ends, ends, the sun goes down to the ground, and the yin begins to condense.

Extended data

Precautions:

On the national average, the first frost is the season with the largest temperature difference between day and night in a year. The "first frost" solar term reflects the climatic characteristics of sudden drop in temperature, great change in temperature difference between day and night, and obvious dryness in autumn. The cold weather began with the first frost.

The first frost doesn't mean you need first frost to enter this solar term. In fact, frost didn't fall from the sky. Frost is the condensation of water vapor on the ground when it meets cold air due to the change of temperature difference. The solar term "first frost" has nothing to do with first frost, they are not the same concept.

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