How many months are there in each season?

According to your question, China is used to accurately dividing the four seasons by the lunar calendar. Lunar calendar1~ March is spring, April-June is summer, July-September is autumn, and 10 ~ 12 is winter. The first day of the first month is the first day of the year and the first day of spring, so it is also called the Spring Festival.

Division of four seasons: The time of entering spring, summer, autumn and winter may be different every year, but it objectively reflects the climatic conditions of the four seasons. Usually seen from the media, the time to enter the spring, summer, autumn and winter is sooner or later, which is the difference formed by this division.

Zhang Baokun, a scholar in China, combined phenology with agricultural production and put forward another seasonal method. This division method uses the average temperature of five days as the temperature index to divide the four seasons. Summer begins when the average climate temperature is stable above 22℃, winter begins when the average climate temperature is stable below 10℃, and spring and autumn begins when the average climate temperature is between 10 ~ 22℃. 10℃ to 22℃ is spring, and 22℃ to 10℃ is autumn.