From the meteorological point of view, beginning of autumn is not directly related to the cooling weather, but the hot and cold weather is related to the atmospheric circulation. Sometimes, although it is already beginning of autumn, Wuhan is still controlled by warm and high pressure, with sunny and hot weather.
Late July to early August is the hottest period in Wuhan every year. August 8th will be "beginning of autumn". However, we must never have the idea of autumn. According to the latest forecast, Wuhan will not have a fever until at least August 8, and the fever will intensify from August 2.
"Autumn" means that summer is cool, which means the beginning of autumn. When you arrive in beginning of autumn, the plane tree will definitely begin to shed its leaves, which is why there is an idiom "When you lose a leaf, you will know autumn".