What is a small department, what is a big department and what is a department? Is it the same as three volts?

It's different from the dog days. The dog days appear between the slight summer heat and the great summer heat.

Summer, July 22nd to 24th in Gregorian calendar. Summer is hotter than summer, and it is the hottest solar term in a year. At this time, "hot and humid steaming" reached its peak. Climatic characteristics of summer: high temperature and scorching heat, frequent thunderstorms and typhoons.

It's summer now, and it's celebrated on July 6-8 of the Gregorian calendar every year. Although light summer is not the hottest season in a year, it is followed by the hottest solar term in a year. There is a folk saying that "it is hot in summer and hot in summer, and it is steamed and cooked".

In summer, it is celebrated on August 22-24 of the Gregorian calendar every year. Summer solar terms are in the period of short-term high temperature weather (autumn tiger), which usually occurs between August and September in the Gregorian calendar. The duration of autumn tigers generally ranges from half a month to two months.

The dog days appear between the hot summer and the hot summer, and it is the hottest, humid and sultry day of the year. The reason for the high humidity in dog days is that the southeast wind blows in dog days, and the Pacific Ocean and Indian Ocean are in the southeast direction. The air is humid, and the humidity of the wind causes the high humidity in the dog days.

Extended data:

According to the traditional calculation method, the third Geng day from summer to the future is the "initial lodging", the fourth Geng day from summer to the future is the "intermediate lodging", and the first Geng day after beginning of autumn is the "final lodging", which is always called "three volts". Because the number of days between the summer solstice and the first Geng Day is almost different every year, the number of days in the "third watch" is not fixed.

When there are four Geng days between summer and autumn, the middle period is 65,438+00 days, and when there are five Geng days, the middle period is 20 days. Therefore, the middle period to the last period is sometimes 65,438+00 days, and sometimes it is 20 days. This year, it officially entered the "dog days" from July 12, and entered the "dog days" for 20 days on July 22, and it was not until August 20 that the "dog days" were over, that is, 40 days.