Four seasons, which months are they?

What are the four seasons? Generally speaking, March-May is spring, June-August is summer, September-165438+1October is autumn, and12 ~ February is winter. In the southern hemisphere, the time of each season is just the opposite of that in the northern hemisphere. It is summer in the southern hemisphere and winter in the northern hemisphere; It is winter in the southern hemisphere and summer in the northern hemisphere. There is no obvious boundary between seasons, and the change of seasons is gradual.

How many months are there in each peaceful season? In our country, it is customary to divide the four seasons by lunar month. Lunar calendar1~ March is spring, April-June is summer, July-September is autumn, and 10 ~ 12 is winter. The first day of the first month is the first day of the year and the first day of spring, so it is also called the Spring Festival. Although the method is simple and convenient, it has one disadvantage, that is, all parts of the country enter the same season on the same day, which is very different from the actual situation in various regions of China.

In order to make the division of four seasons consistent with natural scenery and people's life rhythm, the meteorological department adopted the method of waiting for the temperature to divide the four seasons.

Division of waiting temperature:

1934, Zhang Baokun, a scholar from China, put forward another seasonal method combining phenology with agricultural production. This division method uses the average temperature of five days as the temperature index to divide the four seasons. Summer begins when the average climate temperature is stable above 22℃, winter begins when the average climate temperature is stable below 10℃, and spring and autumn begins when the average climate temperature is between 10 ~ 22℃. 10℃ to 22℃ is spring, and 22℃ to 10℃ is autumn.

Dividing the four seasons in this way, the time of entering spring, summer, autumn and winter may be different every year, but it objectively reflects the climatic conditions of the four seasons. Usually seen from the media, the time to enter the spring, summer, autumn and winter is sooner or later, which is the difference formed by this division.

What months are spring, summer, autumn and winter? Overview of the 24 solar terms (calculated according to the date of AD):

Spring:

February 3-5 solar terms [beginning of spring (solar terms), longitude 3 15 degrees]; February 18-20 [Rain (neutral gas), longitude 330 degrees];

March 5-7, 10 bytes [fright (solar terms), 345 degrees of longitude]; March 20-22, solar term [vernal equinox (neutral qi), longitude 0 degrees];

April 4-6, solar terms [Tomb-Sweeping Day (solar terms), longitude 15 degrees]; April 19-2 1 [Grain Rain (Zhongqi), longitude 30 degrees];

Summer:

May 5-7, solar term [long summer (solar term), longitude 45 degrees]; On May 20-22, the solar term [Xiaoman (middle gas), 60 degrees of the yellow meridian];

June 5-7, solar terms [awn species (solar terms), longitude 75 degrees]; June 2 1-22 [Summer solstice (Zhongqi), longitude 90 degrees];

July 6-8, solar terms [light summer (solar terms), longitude 105 degrees]; July 22-24, solar term [summer heat (Zhongqi), longitude 120 degrees];

Autumn:

August 7-9, solar terms [beginning of autumn (solar terms), longitude 135 degrees]; August 22-24, solar term [summer heat (neutral), longitude 150 degrees];

September 7-9 [Millennium (solar term), longitude 165 degrees]; September 22-24 [autumnal equinox (neutral), longitude 180 degrees];

65438+1October 8-9 [cold dew (solar terms), longitude 195 degrees]; 65438+1October 23 -24 [first frost (neutral), longitude 210];

Winter:

165438+1October 7-8 [beginning of winter (solar terms), longitude 225 degrees]; 165438+1October 22-23 [light snow (neutral), longitude 240 degrees];

65438+February 6-8, solar terms [heavy snow (solar terms), longitude 255 degrees]; 65438+February 2 1-23 node [winter solstice (neutral), longitude 270 degrees];

65438+1October 5-7 [slight cold (solar terms), longitude 285 degrees]; 65438+1October 20th -2 1 intersection [Great Cold (Zhongqi), longitude 300 degrees].

It's not a month decided by spring, summer, autumn and winter. For example, after beginning of winter, it's winter.

How many months are the four seasons in a year? Simply put, the earth revolves around the sun to form four seasons. In a year, due to the regular change of solar radiation, the cycle of the earth in spring, summer, autumn and winter is a four-season change in the mid-latitude region. This is one of the natural phenomena caused by the earth's rotation. Because the direct point of the sun (which means that the sun can reach the zenith position at noon) moves between the Tropic of Cancer and the Tropic of Cancer in a year, the length of day and night at any position on the earth and the height of the sun horizon at noon change periodically in a year, which leads to the periodic change of daily solar radiation in a year. This change is most obvious in the mid-latitude area, but not obvious on both sides of the equator, while there are only winter and summer in the polar regions, but no spring and autumn. There are two main ways to divide the four seasons: China is different from some countries. China takes beginning of spring, Changxia, beginning of autumn and beginning of winter as the starting points of spring, summer, autumn and winter, so that the vernal equinox, summer solstice, autumn equinox and winter solstice are just the middle of the season; Another division method used in some countries is half a season later than that in China, with the vernal equinox, summer solstice, autumn equinox and winter solstice as the starting point of each season. Both methods consider astronomical significance, which is related to the law of the earth's revolution but not completely consistent with the characteristics of the ground climate. Judging from the actual climatic conditions, the latter has stronger climatic significance than the former.

What months are the off-season and peak season respectively? Professionally speaking, generally speaking, the peak season is several golden weeks and winter and summer vacations, and the off-season is outside the weekend, but some scenic spots may have some special circumstances, and the specific off-season depends on the specific scenic spots to be visited.

Generally speaking, the domestic tourism industry is relatively crowded, and the ticket price is relatively high in the peak season, usually from April to 165438+ 10 every year! In the off-season, there are few people and the price is low, generally from the first year 1 1 to the second year in April!

Of course, you can also say that the tourist peak season is the Golden Week holidays such as New Year's Day, Spring Festival, 5. 1,1,and two student holidays (winter and summer vacations). The rest of this month is the off-season of tourism.

In the peak season and off season of climbing Mount Tai, the mountaineering tickets are also priced according to the peak season and off season. The off-season is in 65438+February and 65438+1October, and the tickets are cheaper, and other times are defined as the peak season.

Of course, in different places, the division between off-season and peak season is different. As in the south, spring and golden states should be the peak season, while winter in the north is the off-season. So if you travel, do you still know whether you are in the south or the north?

There is also the so-called off-season and peak season, which are mostly divided by students' spare time.

What months are the four seasons? Every year is different.

Division of four seasons

China and the west divide the four seasons differently. The method of dividing four seasons in China emphasizes the astronomical characteristics of seasons: summer is the season with the longest day and the highest sun at noon; Winter is the season with the shortest day and the lowest sun at noon. Spring and autumn is the transitional season between winter and summer, with uniform day and night and moderate sun height at noon. Specifically, the "Sili" (beginning of spring, Changxia, beginning of autumn, beginning of winter) in the 24 Qi is taken as the beginning and end of the four seasons, which is divided into two parts and four parts (see the division of the four seasons).

Spring: beginning of spring is the starting point, beginning of spring is the midpoint, and the long summer is the end point;

Summer: Long summer is the starting point, summer solstice is the midpoint, and beginning of autumn is the end point;

Autumn: beginning of autumn is the starting point, autumn is the midpoint, and beginning of winter is the end point;

Winter: beginning of winter is the starting point, the winter solstice is the midpoint, and beginning of spring is the destination.

Such four seasons have obvious astronomical significance, but they are inconsistent with the actual climate. For example, beginning of spring and beginning of autumn are the beginning of spring and autumn, but the climate is still in the middle of winter and summer; Summer solstice and winter solstice are the midpoint of summer and winter, but in climate, they are not the hottest and coldest times of the year.

Twenty-four Qi is a summary of long-term astronomical, meteorological and phenological observations of working people in China, and it is a great scientific achievement in ancient China. Its division has the characteristics of astronomical season and climatic season. It is divided into four parts (collectively called eight paragraphs) to express the astronomical season; The gases such as rain, fright, Qingming, Grain Rain, Xiaoman, Mangzhong, Slight Summer, Great Summer, Early Summer, White Dew, Early Frost, Light Snow, Heavy Snow, Slight Cold and Severe Cold clearly indicate the climate and farming season. Among them, the great summer heat and the great cold represent the hottest season and the coldest season in a year respectively. Summer is the second qi after the summer solstice, that is, one month after the summer solstice, which is roughly equivalent to the middle volt in the traditional "three volts"; Great cold is the second breath after the winter solstice, that is, one month after the winter solstice, similar to the traditional "March 9". Therefore, there is a folk saying that "the cold is in the March 9th and the heat is in the middle". Astronomical season and climatic season are obviously different and closely combined.

In which season do towels sell better? What months are the off-season and peak season? I will answer that Tomb-Sweeping Day is off-season, and any other time is fine. Selling towels is much better than selling clothes. Towels sell well at any time.

What month are the four seasons in spring, summer, autumn and winter? Spring: March to May.

Summer: June-August.

Autumn: September-165438+1October.

Winter: 65438+February-February

How many months are there in winter in Shenzhen? The weather in Shenzhen generally turns cold from mid-June165438+1October. At that time, you had to wear a T-shirt and a coat. This way of dressing will last until April. April-June 165438+ 10 is summer, and April-May is not too hot. 10,65438. The coldest in June is 5438+ 10, and the lowest temperature this year is 7,8 degrees. When it drops to 3 or 4 degrees in 2008, you need to wear a sweater. However, the lowest temperature of 7 or 8 degrees a year in Shenzhen will not exceed 10 days, so there is basically no need to wear sweaters in Shenzhen.

A year is divided into four seasons: spring, summer, autumn and winter. What month is spring, summer, autumn and winter? February 4th to May 7th in spring, May 7th to August 7th in summer, August 7th to165438+1October 7th in autumn, and June 7th to February 4th in winter.