What season is September?

September is the ninth month of the Gregorian calendar year. It is a small moon, and there are 30 days in a calendar year. September of the lunar calendar is called Dog Month, and it is also called Chrysanthemum Month, Dressing Month, Young Girl Month, Oda Month, Long Month, Late Autumn, Late Autumn, Residual Autumn, Plain Autumn, Autumn White, Xuan Yue, Frost Order, Seasonal Merchants, Month, Seasonal Autumn, Cool Autumn and Late Merchants.

Autumn is the third season of the year, and the transition season from summer to winter is from September to165438+1October in the northern hemisphere, from March to May in the southern hemisphere, and from the autumnal equinox to the winter solstice in astronomy. Beginning of autumn is the 13 of the 24 solar terms. On August 7th or 8th every year, beginning of autumn is considered as the time when the sun reaches 135. "Autumn" means that summer is cool, which means the beginning of autumn.

The concept of autumn:

Autumn is one of the four seasons. Traditionally, China takes "beginning of autumn" in 24 solar terms 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.

At present, the four seasons are usually divided according to the average temperature of modern scholar Zhang Baokun. The index is that the average temperature is below 10℃ in winter, above 22℃ in summer, and 10~22℃ in spring or autumn.

Autumn is a season of alternating hot and cold. Early autumn is still in the heat, but it hasn't come out yet. This is the hottest, wettest and sultry period of the year. After late autumn, it is sunny during the day, cool and dry at night, with large temperature difference between morning and evening, less rain and insufficient water. Therefore, autumn dryness has become the main feature of late autumn.