How are the seasons divided in foreign countries?

Foreign countries in the division of the four seasons there are also a variety of different sayings, now the most popular is the astronomical division of the method, that is, the spring equinox to the summer solstice is spring; summer solstice to the autumn equinox is summer; autumn equinox to the winter solstice is autumn and winter; winter solstice to the equinox is winter, which is almost only one and a half months difference and the division of the country's ancient books. Dividing the year into four equal parts to divide the four seasons, although simple and easy to remember, but the growth of crops around the earth and the seasons come early and late, it is obviously not possible to be so neat and the same period of time. Moreover, the surface of the earth is unevenly distributed with oceans, land, mountains, and deserts, so it must be inaccurate to divide the coming of the seasons in various places by the above mentioned categories. In order to make up for the above shortcomings and conform to the actual situation, in recent times, China's climatologists proposed to divide the four seasons according to the criterion of migratory temperature (the average temperature of five days), taking into account the growth and activity patterns of certain plants or animals in different places that can reflect the onset of the seasons. This is the method used in China to differentiate between seasons based on the temperature of each place. That is: when the first half of the temperature reached 10 ℃ or more, as the beginning of spring; when the temperature reached 22 ℃ or more, that is, the beginning of summer; when the summer temperature fell to 22 ℃, even if the beginning of the fall; when the temperature fell to 10 ℃ or less, that is, the beginning of winter. In recent years, meteorologists have been dividing the seasons into four seasons according to the adjustment of the weather situation on a large scale and the sudden change of local weather and temperature, which is called the "natural weather season". This method of dividing the four seasons is a step forward than simply using the temperature as a criterion for dividing the four seasons, and is also more in line with the actual situation. Therefore, it is also more scientific and more reasonable.