When is the first frost in 2022, and when is the first frost?

1, the frosty solar terms in early 2022 are 10, 23, 2022, 18: 35, 3 1 sec, and it is the Sunday of September 28th of the lunar calendar. The first frost is one of the 24 solar terms of the lunar calendar. Entering this solar term, the weather is getting colder and frosty. The first frost usually occurs on the 23rd day of the Gregorian calendar 10 year 10. At this time, the first frost appeared in the Yellow River basin in China, and most areas were busy planting crops such as three wheat. In ancient China, the first frost was divided into three stages: "One stage was that the jackal sacrificed animals; Second, the vegetation is yellow; Three waiting insects are salty. "

2. The "first frost" solar term is characterized by cold weather in the morning and evening, hot weather at noon, large temperature difference between day and night, and obvious autumn dryness. On the national average, the first frost is the season with the largest temperature difference between day and night in a year. After entering the first first frost solar term, the cold air activities affecting our country became more and more frequent, and the temperature difference between day and night increased rapidly. Especially in Jiangnan and South China, the temperature fluctuation is more and more obvious; Some areas in northwest and northeast China have shown the scene of "cold wind and fallen leaves" in early winter.