What did the ancients say about thunder in October?

The ancients thought that it was an "ominous sign" to gradually enter the late autumn after entering the vernal equinox solar terms, with lightning and thunder.

According to the query of Baidu Library, the ancients thought that it was "ominous" to gradually enter the late autumn after entering the vernal equinox and solar terms. Therefore, thunder and lightning in autumn and winter have always been handed down by the people, which indicates that it is not a good sign.

As the saying goes, "There are thieves everywhere when it thunders after autumn." In the farming era when agricultural output was low, the ancients thought that thunder in late autumn was an ominous sign. Only when the years are bad, refugees are displaced and thieves are everywhere will there be such a statement. There is another saying: "The autumnal equinox is only afraid of lightning, and the extra rice is more expensive." Refers to the weather phenomenon of local lightning and thunder during the equinox solar term, which indicates that the local crop production is reduced, the autumn harvest is not good, and the rice price is soaring.