Which is hotter, beginning of autumn or beginning of autumn?

Does autumn heat start or summer heat start?

Beginning of autumn is in the heat, because there will be no dog days in beginning of autumn in 2022, and the heat will basically come out. The dog days are the highest temperature in a year, which means summer heat. So it will be hot between beginning of autumn and early autumn.

After beginning of autumn in 2022, it will be hot for about half a month. As the saying goes, "There is a fire between heaven and earth after beginning of autumn", which means that the weather has changed since autumn. After beginning of autumn, it has entered autumn, and the temperature will gradually cool down, but there will be no immediate effect. By the time the third solar term in autumn is the Millennium, the temperature has basically dropped and it has entered cool autumn weather.

In 2022, beginning of autumn time is August 7th, 2022 14: 53: 48, and June 29th of the lunar calendar. Probably in the second half of beginning of autumn, because beginning of autumn on 202 1 will be late, but it depends on the weather.

Meteorological changes of high temperature in summer

Summer is a solar term reflecting the temperature change. "Chu" means to hide and die, and "early summer" means that the hot summer has passed. As the height of the sun decreases, the heat it brings will also decrease. The heat has gradually subsided. Although the summer heat is decreasing and the temperature will not suddenly rise, there will still be short-term reheat weather during this period, but it is not really cool. It usually gets cold after a thousand years.

In summer and solar terms, the temperature begins to drop. The direct point of the sun continues to move south, and the solar radiation weakens; With the withdrawal of the subtropical high in the western Pacific to the south, the Mongolian cold high began to be eager to try, punching and kicking. Under the control of cold and high pressure, sinking dry cold air is formed, and the rainy season in Northeast China, North China and Northwest China ends, taking the lead in starting the best weather in a year-crisp autumn.

Autumn Tiger occurs after beginning of autumn in 24 solar terms, which is a short-term high temperature weather. It usually occurs between August and September, and the duration of autumn tiger varies from year to year, usually lasting for half a month to two months. Although the temperature is high, generally speaking, the air is dry and sunny, and the temperature difference between morning and evening will not be too high. The reason for the autumn tiger weather is that the subtropical high, which was withdrawn from the south, resumed control again, resulting in high temperature and hot weather with crisp weather and strong sunshine. The reason for the formation of autumn tiger is that the western Pacific subtropical high that controls China gradually moves southward in autumn, but moves northward. Under the control of this high pressure, it is partly cloudy, sunny to sunny, with strong sunshine and rising temperature. Although it is autumn, it is sultry.

After summer, the temperature gradually decreases and the temperature difference between day and night gradually increases, but the temperature is still high during the day. The reasons for this phenomenon are as follows: first, the direct point of the sun continues to move southward, and the solar radiation decreases; Second, the subtropical high moved southward by leaps and bounds, and the Mongolian cold high began to itch to try.

Meteorological changes in early autumn

At present, the four seasons are often divided according to the temperature change, which is divided by the modern scholar Zhang Baokun's "average weather temperature". According to the weather average temperature method, the average daily temperature for five consecutive days is between 10℃ and 22℃, which is regarded as autumn. In fact, according to the standard of climatic division of seasons, the beginning of autumn is when the average daily temperature drops below 22℃ in the second half of the year. Except for the summer-free areas connected with the spring and autumn all the year round, few areas in China have entered the "climate average temperature" in beginning of autumn (between 10℃ and 22℃ for five consecutive days).

The beginning of autumn doesn't mean the end of hot weather. After beginning of autumn, there is a summer solar term, and summer comes after the summer solar term. China is a vast country. Although the climate varies from place to place, most areas have not yet entered the autumn climate of "average temperature", and the last days of dog days are still the third day after beginning of autumn. Especially in the south of China, this solar term is still a hot summer. At the same time, because the typhoon and rainy season are about to pass, and the temperature is even hotter, Chinese medicine also calls the period from beginning of autumn to the autumnal equinox "long summer".

Beginning of autumn means rain, storm, humidity, etc. It is at the turning point of the year and tends to decrease or decline. Seasonal changes, rainfall, rainstorm, dry and wet changes in southern China are obvious; In the northern region, these changes are not obvious, but the temperature is obvious. After entering autumn, in nature, the qi of Yin and Yang began to change, everything began to grow from lush to mature, and the climate began to transition from rainy and humid in summer to dry and rainy in autumn. Beginning of autumn doesn't mean the hot weather is over. It is still very hot in early autumn. The so-called "hot dog days", some people say that there are at least "dog days" after beginning of autumn, and the real coolness is usually after the Millennium solar terms.