Is October early autumn?

October is not early autumn, October is late autumn and early autumn is August. Autumn is one of the four seasons. In China, the beginning of autumn in the 24 solar terms is traditionally regarded as the starting point of autumn. Entering autumn means that rainfall and humidity tend to decrease or decrease, and everything in nature begins to mature from lush.

Autumn:

At present, the division of four seasons in China is often based on the change of temperature, which is based on the division of climate average temperature by modern scholar Zhang Baokun. According to the weather average temperature method, there are two main criteria to judge autumn. First, the average daily temperature for five consecutive days is between 10℃-22℃, which can be regarded as autumn and shorthand; Second, the moving average temperature of five consecutive groups is lower than 22℃. A set of moving average temperatures refers to the average temperature of the day plus the average temperature of the previous four days divided by 5 to get the moving average temperature of five days, which is the sliding scale. Entering autumn means that the hot weather has passed and it is beginning to cool down.