Yun Zheyue on August 15, what does it mean that it snows on the fifteenth day of the first month?

It means that if the clouds in the sky cover the moon on August 15, you can see the scene of snow on the fifteenth day of the first month next year. This sentence is a rural proverb, and its logic is not very good. It's just an empirical statement formed when people observed it before.

August 15 and the first month 15 are separated by 100 days, and the time span is very large. The content of this proverb is actually not so accurate. This proverb is like a weather forecast. On August 15, the weather on the fifteenth day of the first month was predicted. There is no logic or explanation before and after. It is also difficult to make sense in science, so you can't believe all proverbs.

August 15th is autumn weather. Most of the weather in this season is sunny and dry. Wheat is planted in many areas in autumn. If there are clouds blocking the moon in the sky this season, it may rain continuously afterwards, which is very beneficial to the development of wheat. But because there are no clouds in autumn, once clouds appear in the sky, people will be particularly sensitive at that time. If it snows on the fifteenth day of the first month, it means a bumper harvest. So people combined these two kinds of weather at that time, and this proverb appeared, which represented a bumper harvest of crops.

In fact, some proverbs have survived mainly because farmers were very concerned about the weather in the past, hoping for a good weather and a better harvest. However, these proverbs are illogical and there is no need to believe them too much. ?