Is the air pressure higher or lower in winter than in summer?

Tall man. Air pressure refers to the pressure produced by the air column per unit area on the earth. The air pressure in a place often changes. The air pressure decreases, it is rainy, the weather rises, and the weather turns fine. There are many reasons for the change of air pressure. The change of temperature is a very important reason for the change of pressure. When the air is cooled, the air contracts, the density increases, the weight of air column per unit area increases, and the air pressure also increases.

The air pressure is high in winter. Under normal circumstances, the ground continuously radiates long waves to the atmosphere effectively, and the atmosphere is also constantly radiating back to the ground. On sunny days, the heat on the ground can be transported to the outside through the effective radiation and upward divergence of the convective gas layer. On cloudy days, clouds reduce the outward divergence of troposphere atmosphere. The effect of clouds on preserving the surface and heating the liquid layer is called "greenhouse effect".