How to calculate the time of four seasons abroad!

The west adopts the division of four seasons with climatic significance. In order to accurately reflect the actual climate situation in various places, climate methods are often used to divide the four seasons, such as using the average climate temperature to divide the four seasons. It is also stipulated that the period when the average temperature is greater than or equal to 22℃ is summer, the period when it is less than or equal to 10℃ is winter, and the period between 10℃ and 22℃ is spring or autumn. According to this standard, the seasons in mid-latitude areas are consistent with the climate, while the temperature changes in low-latitude areas and near the polar regions are not obvious. At the same time, in mid-latitude areas, the length of each season is different. This is the four seasons.