What does it mean to be hot in dog days? Why is it the hottest in dog days?

There is a folk saying that it is hot in dog days, which means that the hottest period of the year is dog days. Besides "it's hot in dog days", there are many folk proverbs about dog days, which are generally related to weather and crops. Why is it the hottest in dog days? It is not only related to temperature, but also related to humidity.

Three volts of heat.

There is a folk proverb in our country called "dog days are hot". This means that the dog days are the hottest time of the year. The dog days, which appear between the summer heat and the summer heat, are the period with the highest temperature, the highest humidity and the most severe sultry heat in a year. "V" means being forced to hide underground. There are three kinds of fu: initial fu, middle fu and final fu, and their dates are determined by the solar terms and dates of the dry branch calendar. After "entering the volt", many places in the country will enter the continuous high temperature mode. The length of dog days mainly lies in the difference between middle and next days. Because the third Geng day (the first autumn) after the summer solstice solar term occurs at different times every year, the number of days in the middle autumn is also different. The incubation time is long or short, which may be 10 day or 20 days. So there are two situations: some years are 30 days in dog days, and some years are 40 days. The dog days in 2022 began in July of Gregorian calendar 16.

Proverbs about dog days

There are many proverbs about dog days in our country.

1, practice three or nine in winter and three volts in summer.

2, the summer is not hot, the summer is in the sky.

There is no rain, and the solstice in summer is very hot.

Wan Li is cloudless and sweltering in the summer solstice.

The summer solstice is full of thunder and drought.

6, a little summer, I don't want to go home to cook.

7, the summer is not hot, the summer is in the sky.

8. It is cold on March 9th and hot in the middle.

9. It's hot in the house, and the rice in the field laughs.

Why is it the hottest in dog days?

Why are the dog days the hottest time of the year? In dog days, the air humidity increases after crouching, resulting in high humidity in dog days. The reason is that the southeast wind blows in the dog days, the Pacific Ocean and the Indian Ocean are in the southeast, and the air is humid. The humidity of the sea breeze leads to the high humidity in dog days. In dog days, "high temperature and high humidity" is the climate characteristic in the south of China, while "high temperature and dryness" occurs in the north. The temperature rises and the rain increases, so a lot of hot air is accumulated, which is very stuffy.