The Meaning of Solar Terms in The First Frost

The meaning of the first frost solar term: it means the change of seasons, reminding people to cherish the beautiful time in front of them and welcome the arrival of winter. ?

The first frost is the eighteenth of the twenty-four solar terms and the last solar term in autumn. The solar calendar is 210; Every year on Gregorian calendar1October 23-24 10, after entering the first solar term in first frost, the scene of late autumn is obvious, and cold air moves southward more and more frequently. The first frost does not mean "frost", but refers to the sudden drop in temperature and the large temperature difference between day and night. On the national average, "first frost" is the season with the largest temperature difference between day and night in a year.

When the first frost comes, everything ends, everything goes to heaven, the sun goes down, Yin Qi begins to condense, and the weather gradually gets cold during the first frost. Because "frost" is a manifestation of cold weather and large temperature difference between day and night, it is named after "first frost", which means "sudden drop in temperature and large temperature difference between day and night". The first frost solar terms are characterized by cold weather in the morning and evening, hot weather at noon, large temperature difference between day and night, and obvious autumn dryness. The first frost solar terms mainly include the customs of enjoying chrysanthemums, eating persimmons, climbing high and overlooking, and tonic.

Historical origin

The first frost is the last solar term in autumn and the transition from autumn to winter. In the first frost season, everything ends, the sun goes down, and Yin qi begins to condense. The cold weather began with the first frost.

Yizhoushu Zhou said: "Autumn and March are empty: summer, autumn equinox, first frost." In Lun Heng, Wang Chong of the Eastern Han Dynasty said: "Clouds and fog are also signs of rain, while summer is dew, winter is frost, temperature is rain, cold is snow, and rain and dew are frozen, all from the ground, not from the sky." Whether it is dew or frost, "it comes from the ground, not from the sky." How can it be called first frost? In fact, the name "first frost" is only used to describe the climate characteristics of "sudden drop in temperature and large temperature difference between day and night" in this season.