Is it a proverb that the winter solstice is sunny and the first month is rainy?

There is a popular proverb in China that it rains in the first month from the solstice in winter, and it rains in the first month from the solstice in winter. This paper describes the weather characteristics of winter solstice and the first month, and the corresponding relationship between them. According to this proverb, it will be sunny on the solstice in winter, but it will rain in the first month; On the contrary, if it rains from winter solstice, it will be sunny in the first month. This proverb reflects the observation and summary of weather changes in rural areas of China.