The folk saying of thunder in October
The most important thing is that it thunders and rains in October of the lunar calendar, suggesting that the temperature may be high and there is plenty of rain. The old saying in the countryside often says that "the wheat is not prosperous". If wheat grows wildly in 10 under good conditions, it is not a good thing. I used to hear that "wheat covers three quilts in winter and sleeps with steamed bread in the second year", which is about the benefits of heavy snow to wheat.
If it thunders and rains in 10, wheat may be crushed to the ground. How can damaged straw grow good wheat? Therefore, this agricultural custom is quite alarmist and exaggerated today, but in the past, it did reflect the situation in rural areas.
In other places, there are also many agricultural customs about thunder in October of the lunar calendar. For example, Hebei said that "October thunder, Rebecca idle" "October thunder, people die"; In Jiangsu, it is said that "October thunders, and people are mixed and piled up like mountains." Thundering in October is not only bad for crops, but also regarded as very abnormal weather.
There is an ancient saying that it thunders in winter?
The wisdom of the ancients has not yet been opened, and they are very afraid and awed by this rare and terrible weather phenomenon. Specifically, they regard winter thunder as a natural punishment, which roughly means that people who don't do good deeds will be hacked to death by winter thunder. These views remain in many literary works and folk proverbs.
Winter thunder shakes, everything declines, insects don't hide, and soldiers often rise. Spring thunder doesn't strike, winter thunder doesn't hide, and soldiers hurt the country. There are also thunderstorms, and the ground shakes. In a word, winter thunder is a sign of natural and man-made disasters, and a warning from heaven to punish human greed and evil. In fact, many times it is a punishment warning for the emperor's unkindness and inaction.
Now it is said that it thunders in winter because the air humidity is high and it is easy to form rain and snow, so there is a saying that it thunders and snows in winter. In winter, the temperature is high and the warm and humid airflow is strong. When there is occasional strong cold air going south in the north, warm and humid air is forced to rise, and convection intensifies, forming thunderstorm clouds, producing lightning and rain and snow. Convection is particularly strong, and it can also form hail, which will produce a weather phenomenon called "thunder in winter".