What does the rain solar term mean? The days are short and the nights are long.

Rain, the second of the twenty-four solar terms, is located on the fifteenth day of the first month of each year (February 18-20 in Gregorian calendar), and the sun reaches 330 degrees of the yellow meridian. Rain, like Grain Rain, light snow and heavy snow, is a solar term reflecting precipitation. ?

Rain means that it begins to rain, and the rainfall gradually increases. Rain has two meanings, one is that the weather gets warmer and the precipitation increases gradually, and the other is that there is less snow and more rain.

Rainwater solar term refers to the entry into spring with meteorological significance. After the "rain", the temperature in most parts of China rose to above 0℃, the daily average temperature in Huanghuai Plain reached about 3℃, the average temperature in Jiangnan was about 5℃, the temperature in South China was above 10℃, and the average temperature in North China was still below 0℃.

Before and after rainfall, rape and winter wheat generally turn green and grow, which requires high water content. "Spring rain is as expensive as oil", so proper precipitation is particularly important for crop growth.

After the solstice in winter, the days are short and the nights are long.

Winter solstice, commonly known as "Winter Festival", "Dragon solstice Festival" or "Children's Day". The solstice in winter has both natural and humanistic connotations. It is not only an important solar term among the 24 solar terms, but also a traditional festival of the Chinese nation. The solstice in winter is considered as a big holiday in winter. In ancient times, there was a saying that the winter solstice was as big as a year.

In ancient times, people wandering in other places had to go home for the winter festival at this time, which was called "having a home at the end of the year". In many areas, there are customs such as ancestor worship in winter solstice, and some places celebrate this festival in winter solstice.