Why is it sultry and gloomy before it rains, and why is it sultry before it rains? Why is it sultry before it rains? Why?

1. Every long summer, the air pressure is low, especially before rainy days or storms.

2. The main reason for feeling sultry is that the temperature is high, the air is full of water vapor, which slows down the evaporation of skin moisture, and the air density is low and the oxygen content is low.

3. Summer rainfall is generally caused by the combined influence of cold air and warm and humid airflow, while sultry is the expression of the increase of water vapor and temperature in the atmosphere.

This is also a harbinger of summer thunderstorms.

5. Precautions when it rains: There are many thunderstorms in summer. Pay attention to lightning protection when traveling, don't make phone calls, and don't take shelter from the rain under telephone poles or big trees.

6. In rainy and windy weather, you must be extra careful when walking outside, and pay attention to billboards and telephone poles on the road, because these things may be hung up or blown down by strong winds.

7. Before the thunderstorm comes, disconnect the line and unplug the power plug, so as not to let the TV set, computer, etc. Lead lightning into the room and damage electrical appliances will cause fire accidents.