What do you mean by sunny winter solstice and rotten year, and autumn winter solstice and sunny New Year?

It is summed up by farmers who have watched the weather for hundreds of years. This means that it will clear up in the new year when it rains on the solstice in winter. If it doesn't rain on the solstice in winter, it will rain in the New Year. The accuracy is very high, just like the rain pouring the Lantern Festival and the autumn moon in the clouds.

The argument that "the winter is sunny to the sun and the year is rotten" is based on the logic that the water vapor content is roughly equal in a year and the precipitation (snow) is relatively balanced in winter every year. If there is no precipitation in winter solstice, it will be distributed around the Spring Festival.

Extended data

As early as more than 2,500 years ago in the Spring and Autumn Period, China had observed the sun with earth gauges and determined the winter solstice, which was the earliest of the 24 solar terms and a traditional festival of the Chinese nation. During the Yin and Zhou Dynasties, it was stipulated that the day before the winter solstice was the end of the year, and the winter solstice was equivalent to the Spring Festival. Later, the summer calendar was implemented. However, the winter solstice has always ranked first among the 24 solar terms, and it is called "dividing the year".

People originally celebrated the Winter Solstice Festival to celebrate the arrival of the New Year. The ancients believed that since the winter solstice, the yang of heaven and earth began to flourish and become stronger, representing the beginning of the next cycle, which is a good day. Therefore, later, during the Spring Festival, customs such as ancestor worship and family dinners often appeared on the winter solstice. As a festival, the winter solstice originated in the Han Dynasty, flourished in the Tang and Song Dynasties, and has continued to this day.