Why does the weather get colder?

Temperature changes are mainly affected by changes in the height of the sun at noon and the length of day and night. The changes in winter and summer are caused by the existence of the yellow-red angle and the changes in the above two elements at different times during the earth's revolution. At different latitudes, even in the same hemisphere, the height of the sun is different at the same time, and the temperature is of course different. However, in winter, the temperature in my country is much lower than that in Western Europe at the same latitude, mainly due to: 1. Differences between sea and land. Because heat absorption and heat release are slow in the ocean, the temperature difference between winter and summer is low. 2. Siberia is covered with ice and snow (reflecting sunlight and reducing ground absorption), forming an extremely low temperature zone. The "cold air" blowing from it seriously affects my country's winter temperatures. We can see temperatures picking up after the cold front.