What does it mean when the small heat is not completely covered by the big heat and when the dog days of 2021

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The small summer is not completely over.It means that the hottest dog days have not yet arrived at the beginning of the Xiaoshu solar term, while the big summer is just over, which means that during the big summer solar term, it is the hottest period of the dog days.The dog days in 2021 will be from July 21 to August 19 in the Gregorian calendar.

Introduction and time of Xiaoshu

Xiaoshu is the eleventh solar term in the twenty-four solar terms of the lunar calendar, and the fifth solar term in summer, indicating the official start of the summer season.Every July 7th or 8th, when the sun reaches 105° ecliptic longitude, it is a small summer heat.Shu, means hot, and Xiaoshu means small heat, which means that the weather is starting to be hot, but it has not reached the hottest.This climate is basically consistent with most areas in China.Therefore, the little summer time in 2021 is on July 7, 2021 in the Gregorian calendar.The average temperature during the little summer in southern China is about 26°C, which is already midsummer.All regions also enter the season with the most thunderstorms, often accompanied by strong winds, heavy rain, and sometimes hail.

Introduction and time of Great Heat

Great Heat, one of the twenty-four solar terms, the last solar term in summer.Every year between July 22 and 23 of the Gregorian calendar, the sun reaches 120° in the almanac, which is the Great Summer solar term.Like Xiaoshu, Dashu is also a season that reflects the degree of heat in summer, while Dashu indicates extreme heat.Therefore, the time of the Great Heat in 2021 is on July 22, 2021 in the Gregorian calendar."The Great Heat is the hottest period of the year, with the highest temperature and the fastest growth of crops.At the same time, meteorological disasters such as droughts, floods, and wind disasters are also the most frequent in many areas.

The time of the dog days in 2021

The early days of 2021:July 21, 2021 - 2021 July 30, 2021 (10 days);

2021 Zhongfu:July 31, 2021 - August 9, 2021 (10 days);

2021 last day:August 10, 2021—August 19, 2021 (10 days).

The dog days appear in Hezhong, which is the highest temperature, humid and muggy days of the year.The so-called The "Fu Tian’er" refers to the "dog days" of the lunar calendar, which is the hottest period of the year.It can be understood as follows:"Fu" means that the weather is too hot, and it is not suitable to move.But the reason why the dog days are called "Fu" is because there are also many cold factors.Sanfu is the hottest three or forty days in a year in the Central Plains.It is calculated according to the lunar calendar, and it is about from mid to late July to August in the solar calendar.Mid to late period.

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