What does the weather have to do with earthworms?

Earthworms are sensitive to temperature and humidity. After the autumnal equinox, the weather turned cold and it rained most of the day before yesterday. There was too much water in the soil where the earthworm once lived, which may have flooded the cave. So after the rain last night, these earthworms climbed onto the road. There is a saying in the folk proverb: "Earthworms climb the road, and the wind and rain are chaotic." The reporter asked if this was true. The staff of the meteorological department said that this proverb is scientific to some extent. It is really going to rain in Huai 'an these days. Earthworms may feel the change of air humidity and choose to move. At the same time, the meteorological department reminded the public that earthworm movement is a normal natural phenomenon and there is no need to worry.