What do you mean by mild cold, warm weather and severe cold?

Slight cold weather is hot, and the meaning of severe cold is as follows:

It means that slight cold is a harsh season. If it is not cold, it will be extremely cold in a severe cold, so cold that words can't describe it.

In the slight cold season, people are afraid of warm weather, so there is a saying that "a slight cold is hot, but it is a great cold." It is forbidden to warm the weather before and after the slight cold, because according to the usual natural laws, the strong cold air and cold wave from the north hit and the weather was cold.

If the weather is warmer at this time, the severe cold will be even colder. In addition, the slight cold solar terms are also taboo against snow. If it hadn't snowed, it would have been dry the next year. There is a proverb called "It doesn't snow in a slight cold, but the fields crack in midsummer".

Extension:

"Slight cold and warm" has two meanings: first, it means that the weather is warm and the temperature is high on the day of the slight cold solar term; The other layer refers to the whole slight cold season, with warmer weather and higher temperature.

So the meaning of this sentence is that if it is not only warm on the day of the slight cold solar term, but also warmer and warmer throughout the slight cold season, there will be a greater chance of snowfall after the solar term in spring next year, so we should prepare for the phenomenon of "late spring cold" in advance.

As the saying goes, "there is no snow in a slight cold, and there will be drought in a small summer". If the weather is warm and there is no snow in the whole slight cold season, there will be less rain in the coming summer solar term, and the crops in the field will dry up because of lack of water. It indicates that there will be less rain and snow and warmer weather next winter.