When did Hengyang start to cool down?

Hengyang will start cooling in 10 months. Hengyang belongs to subtropical monsoon climate, with warm winter and high temperature in spring in the first half of the year. After beginning of spring, precipitation is concentrated, and there is abundant rain in summer and autumn in the second half of the year, so it will gradually cool down after the National Day of the Lunar New Year or the Mid-Autumn Festival, that is, it will start to cool down after 10.