China News Agency, Beijing, June 5 (Reporter Chen Su) According to the China Meteorological Administration, on the 5th, recent high temperatures in North China, Huanghuai, and other places in China have started the "high temperature mode", and the local temperature is approaching 42 ℃.

  On June 3, the Central Meteorological Observatory issued the first high temperature warning this year. The highest temperature in southern Hebei, central and northern Henan, and western Shandong reached 38-40℃, and the local maximum temperature in Handan and Xingtai, Hebei reached 41.8℃. Among them, the high temperature of 19 observation stations reached or exceeded the extreme value in early June. Jinan and Beijing also saw their first high-temperature days this year.

  According to the forecast of the Central Meteorological Observatory, the high temperature process will continue until the 8th. Just now in June, many netizens said, "Now they are "heated up", what should we do in July and August?"

  According to the Central Meteorological Administration, in fact, according to the data from previous years, the months with the most high-temperature days in some northern areas are in June and July. The data of the past 20 years shows that Jinan’s first high-temperature sunrise has the most years in June, accounting for 11 years, and appears in May for 8 years. June and July are Jinan’s high-temperature frequent months, accounting for nearly 80 high-temperature days throughout the year %.

  The highest temperature in Zhengzhou reached 39.4°C on June 3, and Zhengzhou had a high temperature of 35°C for 7 days before June. The highest temperature on May 3 reached 40.8°C, the earliest record of 40°C in the city since 1961.

  Why are temperatures so high in May and June?

  The Central Meteorological Observatory said that some of the reasons may be related to global warming. On the other hand, the high temperature in the north in May and June is mainly controlled by the continental high pressure ridge. The subsidence airflow is prevalent and the air is dry. It is easy to reach the ground, and the radiation heating is very obvious. Therefore, the temperature is relatively high before and after noon, sometimes even reaching 40 ℃. At this time, the body sensation is mainly expressed as dry heat. By July, with the subtropical high moving northward, the main influence system of the north-south high temperature is the subtropical high. The subtropical high pressure control area has relatively sufficient water vapor and high air humidity. People will feel sultry. At this time, the high temperature in the south will start to exert force, and will even last for more than a month. (Finish)