China Weather Network News Today (September 7) we enter the Bailu solar term. "Bailu" is an important season reflecting temperature changes. The weather has reached a turning point from hot to cool.
At this time, the north has opened the comfortable season of high autumn air, and the heat in the south has subsided, but "autumn tigers" occasionally appear.
Through a big data inventory, China Weather Network found that during the Bailu period, Chongqing was still the "high temperature king" in the country, and the number of strong typhoons and super typhoons that landed in my country during the Bailu season was actually the most throughout the year.
Bailu solar term in the south is still summer in the north gradually autumn
"As soon as the breeze prevails, Bailu suddenly freezes." Bailu is the third solar term in autumn. At this time, the north is striding forward to autumn, and the most comfortable season of the year is coming.
In the south, there is still a long way to go before the true autumn, and summer is still firmly locked in Jiangnan and South China.
During the Bailu solar term, with the gradual activation of the cold air, the territory in autumn expands rapidly on the territory of our country, and the North China and Huanghuai areas will start the process of entering autumn during this period.
By the end of the Bailu solar term, most of the northern regions will basically enter autumn in the true sense.
All year round, among the northern cities, Beijing, Tianjin, Shijiazhuang, Zhengzhou and Jinan all enter autumn during the Bailu period.
During the period of white dew in the northern region, you can experience the feeling of high autumn air during the day, and it is the most suitable to go out for a walk.
However, at this time, the temperature difference between day and night is further increased, and it is cool to go out in the morning and evening. It is necessary to add clothes in time to prevent colds.
Chengdu, located in the southwest region, will bid farewell to the heat in the continuous autumn rain and enter autumn during the white dew period.
In Jiangnan and most of southern China, although the heat of midsummer has gradually receded during the Bailu period, the real autumn will come after the autumnal equinox.
Bailu solar term "autumn tiger" from time to time counterattack these places with the highest temperature
For the north, the temperature drops during the white dew period, and the high temperature is long gone; for the south, the peak period of high temperature has passed, but the prestige still exists, and the real coolness of Jiangnan and parts of southern China has not yet opened, and the "autumn tiger" Fight back from time to time.
China Weather Network has counted the number of high-temperature days in big cities during the Bailu period in the past 30 years. The top of the list is Chongqing, a "regular visitor" to various high-temperature lists. During the Bailu period in the past 30 years, there were 56 days of high temperature, with an average of about 2 days per year.
However, it is not the same as the situation where 40°C+ lasts for many days in the midsummer season.
The cities in the middle and lower reaches of the Yangtze River, Changsha, Nanchang, Hangzhou, and Wuhan are also on the list, and occasionally there will be high temperatures during the Bailu period.
This is because after the beginning of autumn, the subtropical high pressure retreating south will often regain control of Jianghuai, Jiangnan and other places. Although the intensity has weakened, in the areas under its control, the weather is clear and the sunshine is strong, and it is easy to return to hot weather.
Located in Fuzhou, Guangzhou and Nanning in southern China, the white dew season is still a proper summer. When there is no rainfall, it is necessary to pay attention to heatstroke prevention and cooling.
The "ruthless role" of the typhoon landed on the Bailu solar term in my country is the most throughout the year
Entering the Bailu solar term, it is already more than half of the first ten days of September, but typhoons are still active at this time, not only in large numbers, but also extremely fierce.
China Weather Network has checked the typhoon data from 1949 to 2021 and found that the sum of the strong typhoons and super typhoons that landed in my country during the Bailu period was the most in the 24 solar terms in the year, reaching 15.
After Bailu are Liqiu and Dashu, with 11 and 10 respectively.
Why are strong typhoons prone to occur during Bailu?
According to Wang Weiyue, a meteorological analyst at China Weather Network, at the beginning of the spring equinox, the direct point of the sun moves from the equator to the Tropic of Cancer, heating the tropical oceans in the northern hemisphere, and the heat of the sea water continues to accumulate. Usually, the sea temperature reaches the highest from August to September, and the high sea temperature is conducive to the formation of typhoons. and energy enhancement.
In addition to its own "stronger strength", the typhoon at this time is also easy to combine with the cold air from the north to the south, causing heavy rainfall and causing greater impact.
Bai Lu wears clothes without revealing food and drink to prevent autumn dryness
As the saying goes, "white dew is not exposed", which means that when the white dew solar term comes, you can no longer wear clothes that are as cool and thin as summer.
Although there is a saying that "spring covers autumn and freezes", the temperature difference between morning and evening increases, especially in the north, you should pay attention to adding clothes in time.
During the white dew season, cool autumn winds lower the temperature, but also take away moisture from the air.
Many people will have symptoms such as dry mouth, dry throat, and dry skin, and the annoying autumn dryness has begun.
At this time, you should also pay attention to eating more lung-moistening foods. Pears are regarded as the "sect of a hundred fruits", which have the functions of moisturizing the lungs, relieving cough, eliminating phlegm, and reducing fire. In Bailu solar terms, you can eat more pears or lilies to nourish yin and moisten yin. lung.
Bailu is not a festival, and there are not many folk activities in various places. Its more function is to remind people that the weather will change, respond in time, add clothes to dry, and enjoy the cool autumn.
(Planning: Feng Wei Data Support: Wang Weiyue Design: Chen Yujie)