Was it cool when it came out?
"Out of the sky" means that after the last solar term "Great Summer" in summer, the temperature gradually begins to drop and enters the cool autumn. But it doesn't necessarily mean that it will be cool when it comes out of the sky, because the change of temperature is related to factors such as region and year.
In most parts of China, the high temperature in summer usually lasts for a period of time after the great summer heat, and it will not obviously cool down until after beginning of autumn. Therefore, even at the end of the dog days, the temperature may still be high and the hot weather may continue.
In addition, climate differences in different regions will also lead to different "falling out" time and cooling degree. In the south, such as Guangdong and Guangxi, the summer is relatively longer and hotter, so there will be more obvious coolness after coming out. In northern areas, such as Northeast China and Inner Mongolia, summer is relatively short, so "coming out" may just mean a little cooler, but it is still the summer temperature.
Therefore, although "falling out" usually marks the end of summer and the approach of autumn, the specific temperature changes need to be determined according to different regions and years.
Calculation method of dog days
Dog days are one of the traditional solar terms in China, indicating the hottest time in summer. Specifically, the dog days refer to 1 1, 12, 13 days of the Xia Hou in the lunar calendar every year, that is, a period from summer to around. First, determine the long summer of the lunar calendar. Long summer is one of the twenty-four solar terms, usually around May 5th in the solar calendar (or around April 20th in leap years).
On the basis of summer, plus three consecutive days in Xia Hou, it's dog days. That is to say, the dog days generally fall on 1 1, 12 and 13 in Xia Hou.
It should be noted that the specific dates of dog days will change due to the differences between the solar calendar and the lunar calendar, and there may be some differences between regions and years. In addition, the weather is hot in summer, so people need to pay attention to heatstroke prevention and keep healthy during this period.