How to determine the entry time?

Not only the number of dog days is not fixed every year, but also the start date of dog days is different.

As the folk proverb says, "In the third year, people count from summer to day." However, the process of human going to heaven and the process of high temperature in summer in meteorology are not a set of standards. The dog days are determined according to the ancient "method of keeping records of cadres and party branches" in China.

Every summer to the future, the third Geng Day (referring to the day with the word "Geng" on the trunk and branches) is the beginning period, the fourth Geng Day is the middle period, and the first Geng Day after beginning of autumn is the end period, collectively referred to as the dog days.

According to the solar calendar, it appears from mid-July to mid-August, and the time is "one size fits all" regardless of region. In the meteorological sense, entering summer means that the average daily temperature rises above 22 degrees Celsius for five consecutive days as the beginning of summer. From a national perspective, eligible areas often gradually enter summer from south to north.

Officially entered today:

Today, I entered the volt, and this year's three-volt curtain officially opened. The dog days are between the light summer heat and the hot summer heat, and it is the time with the highest temperature and humid heat in a year.

The Central Meteorological Observatory continued to issue a high-temperature orange warning at 6 o'clock this morning: It is expected that there will be high temperature above 35 C in central and southern North China, northern and western Huanghuai, Jianghan, central and western Jianghuai, Jiangnan, most of South China, Sichuan Basin and central and southern Shaanxi during the day.

Among them, the highest temperatures in Guanzhong, Shaanxi, central and southern Hebei, northern Shandong, northern Henan, southern Anhui, eastern and western Hubei, central and eastern Hunan, most of Jiangxi, most of Zhejiang, central and northern Fujian, eastern Sichuan, central and western Chongqing, Turpan Basin, Xinjiang and other places are 37℃ ~ 39℃, and the highest temperatures in southern Hebei, northern Henan, central Zhejiang, southeastern Sichuan and northeastern Yunnan can reach above 40℃.

Above content reference: Guangming. Com- how to determine the entry time?