Traditional Culture Encyclopedia - Weather inquiry - The idiom of cold weather.

The idiom of cold weather.

Filariasis in July (China idiom)

July filariasis comes from the Book of Songs, which means that Mars goes west and the weather turns cold.

The weather in July of the lunar calendar begins to cool down in the hottest month, but it is the second hottest month in a year. Therefore, July is still extremely hot.

"July filariasis" is the turning point of cold weather, starting from the hottest.