In ancient times, the festivals of a year were divided according to the climate. That is, beginning of spring, Rain, Creeping, Vernal Equinox, Qingming, Grain Rain, long summer, Xiaoman, Mangzhong, Summer Solstice, Xiaoshu, Dashu, beginning of autumn, Chushu, Bailu, Autumnal Equinox, Cold Dew, first frost, beginning of winter, light snow, heavy snow, winter solstice, slight cold and severe cold.
beginning of spring: the first of the 24 solar terms in the lunar calendar. Beginning of spring is divided from astronomy, that is, when the sun reaches 315.
rain: it is the second solar term among the 24 solar terms, and it is located around the 15th day of the first month of each year (February 18-2 in Gregorian calendar), and the sun reaches 33 degrees of the yellow longitude.
Jing Zhe: It is called "Qi Zhe" in ancient times, which is the third solar term among the 24 solar terms of the lunar calendar, marking the beginning of the mid-spring season; When the sun reaches 345 longitude.
vernal equinox: it is the mid-point of 9 days in spring. One of the twenty-four solar terms, the annual Gregorian calendar is about March 2th, when the sun is located at (vernal equinox) of the yellow longitude.
Tomb-Sweeping Day, also known as the outing festival, is at the turn of mid-spring and late spring, that is, the 18th day after the winter solstice. It is a traditional festival in China, and it is also one of the most important festivals for offering sacrifices to ancestors and sweeping graves.
Grain Rain is the sixth solar term of the twenty-four solar terms and the last solar term in spring. Every year from April 19th to 21st, when the sun reaches 3 degrees of the Huangjing, it is Grain Rain, which comes from the ancient saying that "rain gives birth to hundreds of valleys". At the same time, it is also the best time to sow, transplant seedlings and order beans.
long summer is the seventh solar term in the twenty-four solar terms of the lunar calendar, and the first solar term in summer indicates the official start of the summer season. When the sun reaches 45 degrees of the yellow longitude, it is the solar term in long summer.
Appreciation of the poem about the solar terms of heavy snow:
Tang Li Bai's "Popular in the North": Yanshan snowflakes are as big as seats, and pieces of them blow down Xuanyuantai.
Tang Bai Juyi's Snow at Night: I was surprised that my pillow was cold, and I saw the window bright again. It was late at night to know that the snow was very large, because from time to time it could hear the sound of the bamboo branches folded.
Bai Xuege by Cen Can: is like a spring gale, come up in the night, blowing open the petals of ten thousand pear trees.
Han Yu's Chun Xue: There are no flowers in the New Year, but grass buds are surprised at the beginning of February. Snow is too late for spring, so it is intended to be a flower in the courtyard tree to wear flying.
Luo Yin's Snow: If you do your best, what will happen in a good year? There are poor people in Chang' an, and it is not advisable to be rich
Jiang Xue by Liu Zongyuan: a hundred mountains and no bird, a thousand paths without a footprint. A boat on the river, a fisherman in his bagworm moths; Fishing alone, not afraid of snow and ice attack.
on seeing the snow-peak of zhongnan by Tang Zuyong: see how Zhongnan Mountain soars, with its white top over floating clouds. After the snow Chu Qing, the forest shoot between the sun afterglow, late time, the city of changan added a few more cold.
To Snow by Tang Gao Pian: When six flying flowers come into the house, sit and watch the green bamboo turn into a lovely branch. Nowadays, it's good to look up to the sky and cover up the evil roads in the world.
Song Zhang Yuan's Snow: Five Ding defeated Yun Ni with swords, and took the Tianhe River to the capital. After the war, Yulong was three million, and the black sheep and bones were flying all over the sky.