The time that the sun travels 15 degrees along the yellow meridian from zero degree is called "a solar term". It runs 360 degrees every year, and * * * experiences 24 solar terms, 2 times a month. Among them, the first solar term of each month is "solar term", namely: beginning of spring, Jingzhe, Qingming, long summer, Mangzhong, Xiaoshu, beginning of autumn, Bailu, Hanlu, beginning of winter, heavy snow and slight cold 12 solar terms; The second solar term of each month is "Zhongqi", that is, 12 solar terms such as rain, vernal equinox, Grain Rain, Xiaoman, summer solstice, great summer heat, summer heat, autumn equinox, first frost, light snow, winter solstice and great cold. "Solar terms" and "neutral gas" appear alternately, each lasting 15 days. Now people have collectively referred to "solar terms" and "neutral gas" as "solar terms".
The twenty-four solar terms reflect the annual apparent movement of the sun, so the dates of the solar terms are basically fixed in the current Gregorian calendar, with the first half of the year being on the 6th and 2nd1day, and the second half on the 8th and 23rd, with the same before and after1~ 2 days.
Beginning of spring: Standing means beginning. Spring is stupid. The weather is gradually warming up, and the vast land will show a scene of everything recovering. This spring begins.
Rain means that the climate is gradually warming up, the ice and snow are melting and the rain is gradually increasing.
Startled, spring thunder rattled, and all things were alarmed. Animals that were dormant and hibernating underground began to be unearthed.
The vernal equinox, the equinox is half, which is the midpoint of 90 days in spring, called vernal equinox, and this day is equal to day and night.
Qingming, clean and clear. The climate is warm, and the vegetation begins to sprout luxuriantly.
Grain Rain, the meaning of "rain gives birth to hundreds of valleys". Since this day, the rainfall has increased, which is beneficial to grain growth.
In long summer, from the beginning of summer, crops will grow in a warm climate.
Small full, full fingers full, and summer crops such as wheat are gradually full.
The awn seed and the awn seed are also busy, and crops with awns such as wheat begin to mature and harvest, which is also the busiest season for planting crops in autumn.
The summer solstice, to the right, this day the shadow is short. On this day, the day is the longest and the night is the shortest in the northern hemisphere, indicating that summer is coming and the temperature will continue to rise.
Slight summer heat, summer heat is hot, and slight summer heat is that the climate is hot but not hot to the extreme.
Great summer heat, extremely hot, is the hottest season of the year.
Beginning of autumn, the summer is cool, and autumn begins. Autumn means that plants are maturing soon, and then the temperature drops gradually.
Being in the summer heat means that the heat is about to pass, the summer heat will end on this day, and the temperature in most parts of China will gradually drop.
White dew, because it is cool at night, the water vapor near the ground condenses into white dew on plants and other objects, which means that the weather turns cold.
The autumnal equinox, which is the mid-point of 90 days in autumn, is equal to day and night again. From this day on, the days in the northern hemisphere are shorter and the nights are longer.
Cold dew, the temperature continues to drop, and it is already chilly at night, and the dew drops are cold, which means that the climate will gradually change from cold to cold.
First frost, it's getting colder and frosty.
Beginning of winter, winter is the end, which means to collect the crops after harvest. Winter begins on this day.
Light snow, snow began to fall in the north, but the amount of snow was still small and not many times.
Heavy snow, snow will be from small to large, snowfall days and snowfall will increase compared with light snow solar terms, and there will be snow on the ground gradually.
On the winter solstice, the sun shadow is the longest. On this day, the northern hemisphere has the shortest day and the longest night, and it begins to enter several cold days.
Slight cold, cold air accumulated for a long time, the weather is cold, but it has not reached the extreme.
Great cold, the weather is extremely cold, and it is the coldest season of the year when it is freezing.