How about cold dew and thunder?

1. If it thunders in the cold and dew season and the drought lasts for a long time, it is not conducive to winter wheat, and the harvest in the coming year will naturally be affected, that is to say, thunder cannot be heard after the autumnal equinox, otherwise it means "bad things".

2. Cold dew usually falls between June 7th and 9th 10 in Gregorian calendar every year, which is the 17th solar term among the 24 solar terms and the fifth solar term in autumn.

3. Cold dew is a solar term reflecting the characteristics of climate change. Cold dew, white dew and first frost all indicate the phenomenon of water vapor condensation, and cold dew is the transition from cold to cold. Compared with the white dew, the temperature drops a lot, and the dew on the ground is colder, which is likely to become frozen dew, so it is called cold dew.