Which is hotter, the Great Heat or the End of Heat? The Great Heat is around the middle of the dog days.

Which one is hotter, the Great Heat or the End of Heat? There is a folk saying: The Greater Heat and Lesser Heat are not the heat, but the Beginning of Autumn and the End of Heat are the real heat. Both Dashu and Chushu have the word "shu" in their names. So, will Chushu be hotter? Next, let’s take a quick look at the differences between Greater Heat and End of Heat.

Which is hotter, the Great Heat or the End of Heat?

1. The so-called heat in the "dog days" usually begins in the late period of the Lesser Heat solar term, and the main period of the dog days is during the Greater Heat, and the End of Heat is the day when the summer is about to end. Therefore, among the Great Heat and the End of Heat, the Great Heat is the hottest.

2. From July 22 to 24 of the Gregorian calendar every year, the sun reaches 120° of the ecliptic longitude, and the Great Heat is around the middle of the dog days of summer. In many areas of my country, high temperatures of 40 degrees Celsius often occur. In this scorching hot season, heat prevention and cooling work cannot be ignored, and the Great Heat solar term is also the hottest stage of the weather.

3. Around August 23, the sun reaches 150° of the ecliptic longitude, and the Beginning of Autumn is around the end of the dog days. Chushu, which means "out of summer", means the heat is leaving. Chushu is different from the Lesser Heat, Greater Heat, Lesser Cold and Greater Cold. It represents that the summer heat will end on this day, the temperature in most parts of China will gradually drop, and the heat will soon pass.

The difference between Lesser Heat, Greater Heat and End of Heat

1. Lesser Heat: The eleventh solar term of the twenty-four solar terms in the lunar calendar and the fifth solar term in summer, marking the official start of the midsummer season. Lesser Heat is a slight heat, not very hot. It means the weather is starting to get hot, but it hasn't reached its hottest point yet.

2. Great Heat: The twelfth solar term in the 24 solar terms of the lunar calendar and the sixth solar term in summer, when the sun is at 120° of the ecliptic longitude. The Great Heat falls around the middle of the dog days of summer, which is the hottest solar term of the year.

3. Chushu: The 14th solar term in the 24 solar terms of the lunar calendar. "Chu" in Chushu means "end", and the meaning of Chushu is "the official end of summer heat". Chushu is the day when summer is about to end, and the temperature will gradually drop in most areas.

About the hottest days of summer

The so-called "fu days" refers to the "three hot days" in the lunar calendar, which is the hottest period of the year. The dog days of summer is a special period in the lunar calendar, which is a general term for the first, middle and last dog days. The dog days occur between the Lesser Heat and the Greater Heat, and are the hottest, most humid, and most humid days of the year. The first and last dog days of the year are 10 days each, and the middle dog days is 10 or 20 days in different years.
2017 Dog Days Schedule:
First dog days: 2017-07-12 to 2017-07-21 (10 days)
Mid-summer season: 2017-07-22 to 2017-08-10 (20 days)
Last dog days: 2017-08-11 to 2017-08-20 (10 days)