What does thunder and rain mean from winter to the future?

On the solstice of winter, it thunders and rains. There is a saying that "the solstice of winter thunders and it is cold for a hundred days" and "the solstice of winter thunders and it is cold in spring".

"It thunders on the solstice in winter, and it is very cold for one hundred days."

"It thunders from the winter solstice", here "winter solstice" refers to the day of the winter solstice solar term, that is, the day when the snow solar term ends and the winter solstice solar term begins. "Ming" means listening, listening to the sound. "Thunder" means thunderous weather. Therefore, the phrase "thunder in winter" means hearing thunder in winter.

Thundering weather is caused by strong convective weather of cold and warm air masses. The reason why there are few thunderstorms in winter is that there are many dry and rainy days and sunny days in winter, so there are few thunderstorms in a single airflow. However, if the weather is warm in winter, it means that the warm and humid air flow is also active, which makes the violent collision between the warm and humid air mass and the cold air mass produce thunder, thus forming a rainy or snowy weather.

"It thunders in winter and it is cold in spring."

This proverb directly explains the weather omen brought by the thunder of the winter solstice solar terms to the next spring. It is specifically understood as "thunder from the winter solstice", which refers to the weather that thunders during the solar terms from the winter solstice. The thunder in winter is very shocking and makes farmers very worried psychologically. It thunders, which means it's not cold, and the heating flow is still relatively strong, so there will be cold weather next spring. Here, it is explained by "cold spring".

"Cold in late spring" means that winter is cold in spring, and the weather is mainly rainy and snowy. Frost weather after rain and snow has the greatest impact on crops, causing freezing damage to crops and affecting summer harvest.