One autumn rain and one cold, ten autumn rains need to wear cotton. meaning

Rural proverb: "One autumn rain and one cold, ten autumn rains need to wear cotton." This proverb refers to the beginning of the autumn solar term, which means that from summer to winter, beginning of winter will be behind beginning of autumn for almost two and a half months, during which the next rain will make the weather even colder.

If there are ten autumn rains, it means that the clothes are getting thicker. Ten autumn rains are a rough figure, not necessarily ten. Why does it get cold after the autumn rain? Because the sun's rays gradually move south after autumn, the north will take this opportunity to accumulate cold air, and the cold air in the north will meet the warm and humid airflow in the south, so there will be rainy weather.

There was a heavy rain in Beijing a few days ago, and now Beijing has a feeling that autumn is coming. And every time the cold air in the north goes south, it means that the weather gets colder again and again, because most areas have been controlled by the cold air mass, so it is really necessary to wear cotton-padded jackets after the autumn rain.