Are the four seasons the same everywhere, and how are the seasons divided?

It's different, and it's very different.

The opposite is true in the northern and southern hemispheres. For example, if it's winter in the Northern Hemisphere, it's summer in the Southern Hemisphere.

And the four seasons are different. In some places, there are almost no changes in the four seasons, such as Kunming in Yunnan Province, where the four seasons are like spring, and the Qinghai-Tibet Plateau is covered with snow all year round and the weather is cold. In some places, the four seasons are distinct, with spring, summer, autumn and winter having their own characteristics.

There are so many such places, it's hard to list them, because there are no places that are distinctive)

As for the reason, the most fundamental thing is the periodic change of the direct point of the sun between the Tropic of Cancer when the earth rotates, in short, the change of the direct point of the sun. (The following are the specific changes, if you find it troublesome, you can ignore it).

Vernal equinox day (March 19-22): The sun shines directly at the equator (north).

Summer solstice (June 21-22): Straight to the Tropic of Cancer (southbound).

Autumnal equinox (September 22-24): The sun shines directly at the equator (moving south).

Winter Solstice (December 22-23): Straight to the Tropic of Capricorn (north.

Vernal equinox day (March 19-22): The sun shines directly at the equator (north).

At this point, the direct sunlight completes a return year. And you can see the change of seasons clearly from this. By the way, the direct sun point will only go back and forth between the Tropic of Capricorn.

That's all I know, and that's all I can explain. If you still don't understand, it's that I used to be too unserious in geography class, and I couldn't even explain a natural phenomenon clearly, so I'm ashamed...

There are four seasons, and that's the same.

But summer in the Northern Hemisphere and winter in the Southern Hemisphere.

How could it be the same.

It's a lot worse. The difference in latitude and longitude, the rotation of the earth, the reasons for the revolution, etc.

1. Spring. Spring is the first season of the four seasons, and the time generally referred to is the period from the beginning of spring to the beginning of summer in the 24 solar termsThat is, from January to March of the lunar calendar, from February to May of the Gregorian calendar, and the southern hemisphere is the late September of the Gregorian calendar, and the late December of December is set as spring。Spring is marked by signs of recovery and a changeable climate.

2. Summer. The beginning time of summer is the beginning of the summer solar term, and the end time is the beginning of the autumn solar termThat is, from April to June of the lunar calendar, from the beginning of May to the beginning of August of the Gregorian calendar. Summer is characterized by high temperatures, but because of the vast territory of our country, the climate of summer is the same in different regions, and at the same time, summer is also the season when crops grow most vigorously.

3. Autumn. The time of autumn is the period from the beginning of autumn to the beginning of winterThat is, from July to September of the lunar calendar, and from August to October of the Gregorian calendar. Autumn is characterised by a significant drop in rainfall and humidity, and the signs of decay and ripeness begin to emerge from nature.

4. Winter. Winter begins with the beginning of winter in the 24 solar terms and ends with the beginning of springThe time is from October to December of the lunar calendar, and from November to early February of the Gregorian calendar. The salient feature of winter is that everything begins to enter a dormant state, the weather in most parts of our country is cold, animals will be dormant, and migratory birds will fly to warm places for winter.

How the other seasons are divided

1. Astronomical division.

From the perspective of astronomical phenomena, the change of seasons is the seasonal change of the length of day and night and the height of the sun. For this reason, the astronomical division of the four seasons is based on the spring equinox (March 21), summer solstice (June 21), autumn equinox (September 21), and winter solstice (December 21) as the beginning of the four seasons. Namely:

The spring equinox to the summer solstice is spring, the summer solstice to autumn is summer, the autumn equinox to the winter solstice is autumn, and the winter solstice to spring is winter.

2. Meteorological division method.

In the meteorological department, the solar calendar usually takes March and May as spring, June and August as summer, September and November as autumn, December and February of the following year as winter, and often takes the month as the representative month of winter, spring, summer and autumn.

3. Ancient division method.

The beginning of spring (February 4 or 5) is the beginning of spring, the beginning of summer (May 5 or 6) is the beginning of summer, the beginning of autumn (August 7 or 8) is the beginning of autumn, and the beginning of winter (November 8 or 9) is the beginning of winter.

4. Lunar division method.

It is customary for Chinese folks to use the lunar months to divide the four seasons. Every year in the lunar calendar, January and March are spring, April and June are summer, July and September are autumn, and October and December are winter.

5. Waiting temperature division method.

This division is based on waiting (five days for each waiting). The average temperature is used as a temperature indicator to divide the four seasons.

When the average temperature stabilizes above 22, it is the beginning of summer, when the average temperature is stable below 10, it is the beginning of winter, and when the average temperature is between 10 and 22, it is spring and autumn. A drop from 10 to 22 is spring, and a drop from 22 to 10 is autumn. The division of the four seasons, not only is the climate very different from each region on the earth, but also the climate of the same region is different in different seasons.

1. The climate of Harbin is characterized by four distinct seasons, the winter is long and cold, the summer is short and hot, and the temperature rises and falls quickly in spring and autumn, which belongs to the transitional season and the time is short. Affected by the geographical environment, the alternation of sea and land air masses and monsoons, the climate of each season in the city is significantly different and varies greatly. In winter, the climate is cold and dry under the control of polar continental air masses; In summer, under the influence of the subtropical marine air mass, the precipitation is abundant and the climate is warm. Due to the alternating influence of winter and summer monsoons in spring and autumn, the climate is changeable, with strong winds in spring, less precipitation, and easy drought; Autumn drops dramatically, and frost hazards are common.

2. Harbin is a sub-provincial-level city in Heilongjiang Province, the political, economic and cultural center of the northern part of Northeast China, and a megacity with the largest land area and the third largest registered population among the provincial municipalities in China.

There are different criteria for division. Here are a few common divisions:

1. Astronomy: with four neutral airs, namely"Two to two points": The spring equinox, summer solstice, autumn equinox, and winter solstice are respectively the beginning of the four seasons. It is a division according to the solar terms of the lunar calendar in China.

2. Ancient China: multi-purpose"The four wisdom were defeated"The beginning of spring, summer, autumn and winter are the beginning of the four seasons, and it is also a division according to the solar terms of the lunar calendar.

3. In the Gregorian calendar (Gregorian calendar), January is generally the coldest month and July is the hottest month, so March, April and May of the Gregorian calendar are the spring months, June, July and August are summer, September, October and November are autumn, and December, January and February are winter. This division of the four seasons is more suitable for temperate regions with distinct seasons, and the applicability of this division is poor.

4. In the lunar calendar, the first month, February and March of the lunar calendar are also used as spring, April, May and June are summer, July, August and September are autumn, and October, November and December are winter. This division method also has the problem of poor applicability.

The first, second, and fourth divisions are all divided according to the lunar calendar (including solar terms and lunar months).

If applicable.