Why is 2021 so late?
The reason why the weather is not hot yet is that it has not yet arrived. Every year, it does not get hot until June 1st. ?
We humans still have many unknown changes in nature. The earth's plates move, the weather suddenly changes, cold and hot, the temperature difference between day and night is huge, etc. It all shows that the weather has changed a lot. It is not surprising that the weather has been so changeable and unstable this year.
Maybe the high temperature is still to come. As the saying goes: The heat at the beginning of autumn is the right heat, while the major heat and minor heat are not considered hot. This fully shows that even in July or even at the beginning of autumn, there will still be high temperatures, and the heat of "Autumn Tiger" is even more amazing. Maybe this summer’s high temperature is still to come.
The dog days of summer, which appear between the mild summer heat and the extreme summer heat, are the hottest, humid, and sultry period of the year.
"Fu" means that Yin Qi is forced by Yang Qi to hide underground. The Three Fus are divided into the first, middle and last days. Its date is determined by the solar terms of the Ganzhi Calendar and the Ganzhi Calendar. Determined based on the date. After the "fall", many places across the country will enter a sustained high temperature mode.
The traditional almanac stipulates: "The number of ambushes will begin on the third Geng day of the summer solstice." This means that counting from the summer solstice to the third Geng day will begin the ambushes. The "Geng Day" here refers to the day with the prefix "Geng" in the ancient "Stem and Branch Day Calendar".
The length of Futian mainly lies in the difference between Zhongfu. Because the third Geng day (first fall) after the summer solstice occurs at different times every year, the number of days leading to the middle fall is also different. The duration of the incubation period may be long or short, it may be 10 days or 20 days. So there are two situations: some years have 30 days of dog days, and some years have 40 days.