Characteristics of Solar Term Weather of First Frost

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 is the eighteenth of the twenty-four solar terms and the last solar term in autumn. 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.

In autumn, the main climate is dry, and the temperature gradually turns cold. However, after the first frost, the temperature difference between day and night is even greater. It is very cold in the morning and evening and very hot at noon. Autumn dryness is obvious. After the first frost, the plants gradually lost their vitality and the land was desolate. After the first frost, the temperature difference between day and night is large, the weather is very cold in the morning and evening, and it is very hot at noon. Autumn dryness is obvious. After the first frost, the land was desolate.

To the south of latitude, the average temperature is around 16℃, and there are three solar terms before the first frost day. In the first frost season, the cool autumn wind blew to Guangzhou, the flower city. The average temperature in northeast China, eastern Inner Mongolia and most parts of northwest China has been below 0℃.

First frost custom

1, drinking and enjoying chrysanthemums

Meteorology, the first frost in autumn is generally called "first frost" or "chrysanthemum frost", because chrysanthemums are in full bloom at this time, which is a good time to enjoy chrysanthemums. In ancient times, there was a saying that "frost blooms chrysanthemums", so climbing mountains and enjoying chrysanthemums in the first frost became an elegant activity.

2. Sweeping graves to worship ancestors

Qing thomas lee said, "On New Year's Eve, the Cold Food Festival and the First Frost Festival, you should offer sacrifices to sweep the graves. During the period, I will serve my bed with vegetarian food, use wine and tools for cutting vegetation, seal trees in the middle of the week, and break Cao Jing, so it is called sweeping the grave. " And spread to this day.