Which is more atmospheric pressure, rainy or sunny? What about winter and summer?

The first floor is wrong, or is it 10 flower detection? Air pressure refers to the air pressure near the ground, not the air pressure at high altitude. The correct answer is just the opposite of what is said upstairs.

When it rains, due to the prevailing updraft, low pressure forms on the ground. On sunny days, the atmosphere mainly flows downward, forming high pressure near the ground. In winter, due to the cold, the atmosphere sinks, forming a high pressure near the ground. In summer, the airflow is heated up, forming a low pressure near the ground.

However, it should be noted that the above analysis refers to the general situation, if it doesn't rain or sunny on that day, or if it doesn't rain or sunny on the same day, it has no comparative significance. If it is not the air pressure of the day, the air pressure on a sunny day is not necessarily greater than that on a rainy day.