The summer solar term is in the "three volts", which is the period with the most sunshine and the highest temperature in China. Most parts of the country are dry and rainy, and the temperature in many areas is above 35 degrees, so the so-called "three stoves" are also the most prosperous.
About a month after the winter solstice, it entered the coldest season of the year-the Great Cold. At this time, the sun has gradually moved northward, and the daily sun exposure time is longer than the winter solstice, that is, the heat gained by the northern hemisphere from the sun has begun to increase, but at this time, the heat radiated by the northern hemisphere to space has reached the maximum.
Therefore, before and after the Great Cold, the temperature in Asia and Europe was the lowest, and it was extremely cold. At this time, the daily average temperature in Beijing was MINUS 4 and 5℃. After the severe cold, the temperature began to pick up, and the weather gradually became less cold.
Extended data:
Beginning of spring: When the bucket handle of the Big Dipper points to the northeast, it is beginning of spring, which is the first solar term of the 24 solar terms, corresponding to the twelve places supporting Yinyue, and the moon is the first in a year. Its meaning is to begin to enter the spring, "Yang and stings, and everything is spring". In beginning of spring, everything is full of vitality, and the four seasons begin from now on. ?
Rain: at this time, the spring breeze blows all over, the ice and snow melt, the air is moist, and the rain increases, so it is called rain. People often say: "It is getting warmer in the spring, and the rain is busy to send fertilizer."
Scare: This solar term means that after beginning of spring, the climate will get warmer, and the spring thunder will start to ring, and all kinds of hibernating animals that are dormant in the soil will wake up and start to move, so it's called scare. During this period, the oviposition of wintering insects will also start to hatch. Some parts of China have entered the spring ploughing season. As the proverb goes, "If you are startled, it will be warm and harmonious, and the old toad will sing folk songs". "I am shocked by a plow, and the spring equinox is full of air." "I didn't wake up to Lei Xianming, and the rain was like a dragon."
Vernal equinox: The sun is above the equator on the vernal equinox. This is the 90-day equinox in spring. On this day, the northern and southern hemispheres are equal day and night, so it is called the vernal equinox. After this day, the direct position of the sun continued to move from the equator to the northern hemisphere, and the northern hemisphere began to have long days and short nights. So the vernal equinox is the beginning of spring in the northern hemisphere. Overwintering crops in most parts of China have entered the spring growth stage.
Agricultural proverbs in various places include: "Spring Equinox comes first, rice fights for money" (Guangdong), "Spring Equinox keeps raining, summer equinox keeps burning" (Sichuan), "Every family is busy when it rains, planting melons and beans first, then transplanting them" (Hubei), "Spring Equinox planting vegetables, picking melons in summer" (Hunan) and "Spring Equinox planting hemp beans, autumn equinox planting.
Qingming: At this time, the climate is fresh and warm, everything "spits out the old and absorbs the new", plants and trees sprout new branches, everything begins to grow, and the earth presents the image of spring and Jingming. "Huainanzi Astronomical Training" said: "On the fifteenth day after the vernal equinox, when the bucket refers to B, the Qingming wind will come." "Qingming wind" is a refreshing and clear wind. "When I was 100 questions" said, "Everything grows at this time, and it is clean and bright. So it is called Qingming. "
Baidu encyclopedia-great summer
Baidu Encyclopedia-The coldest time in winter-Great Cold
Baidu encyclopedia-24 solar terms