Is the first frost a transitional solar term from autumn to winter?

First frost: dew forms frost to prevent cough and bronchitis.

"With the first frost, the yin began to condense."

-"Twenty-four solar terms"

The first frost occurs when the sun reaches the longitude of 2 10 degrees every year around Gregorian calendar 10 year10 23rd. The first frost said that the weather was colder and the dew condensed into frost. The first frost is the last solar term in autumn, which is the transition from autumn to winter. The lowest temperature can reach about O℃.

During the first frost, the temperature difference during the day is large, and cold air often attacks, resulting in a sudden drop in temperature. At this time, the climate has gradually turned cold, with frost at night and cold in the morning, and frost began to appear. Frost is an ice crystal formed by water vapor in the air near the ground directly condensing on the ground or plants. The color is white and the structure is loose. First frost is covered with vegetation and rocks, commonly known as frosting, and frosted vegetables are delicious.