Why does rain cause cooling? Why is it hot before rain and cool down after rain?

First, because when it rains, it is obscured by dark clouds and there is no sunlight. Second, when it rains, rain falls from the sky and flows away, which absorbs heat (air, plants, animals, etc.). The third cloud is made up of water vapor.

When it is cold, the temperature itself is low. Fourth, although there is friction and heat during the landing.

But the heat is not enough to raise the temperature too much.

The reasons are as follows: First, water can absorb heat. Water stores heat. When water (raindrops) come into contact with the air, the heat in the air can be transferred to the water, causing the temperature of the water to rise and the temperature of the air to fall.

The second is that water evaporation can take away a lot of heat. The heat of vaporization of water is kilojoules, which is equivalent to kilojoules. Water evaporates in the air, and when it evaporates, it absorbs a lot of heat from the environment, and the temperature of the water vapor does not rise, it is the same as the temperature of the water before evaporation.

Since when raindrops evaporate, they can only absorb heat from the air, so the temperature usually drops a lot after a rain.

The former reason is not primary, the latter is primary.

There are several reasons why rain can cause cooling:

1.When it rains, dark clouds obscure the sun, causing the ground temperature to drop.

2.Rainwater falls from the sky to the ground, absorbing heat from the air, plants, animals, etc. in the process.

3.Clouds are formed by water vapor when cooled and are themselves low-temperature substances.

4.Although frictional heat is generated during landing, the heat is not enough to raise the temperature too much.

To sum up, rain leads to cooling, mainly because rain absorbs heat from the air, plants, animals, etc., and at the same time, clouds are also low-temperature substances.

From the perspective of a junior high school student: when it rains, the rain will evaporate, and the evaporation will absorb heat, so the temperature will drop.

Hello friend, under normal circumstances, rain will take away the heat, so it feels cooler.

In addition, the autumn rain is an autumn rain and a cold. And the spring rain is a spring rain and a warmth.

The sky usually has a lot of clouds before the rain, and it is at this time that the air pressure will be higher than usual. The rain cools the ground after the rain.

Summary. Hello dear! I've helped you find the results:

Rain cools down the rain, which carries a lot of heat away from the atmosphere, which lowers the air temperature. The longer it rains, the cooler the temperature will be, especially at night. Because of the obscuration of the clouds, most of the sun's radiation is reflected by the clouds, and the ground will also radiate infrared energy to the air, which is reflected by the clouds and received by the air, and the heat in the air is absorbed by the condensation process of rain.

As a result, the temperature drops, making it chilly. Cooling, abundant water vapor, condensation nuclei are the three necessary conditions for precipitation. Dear The above is my reply, I hope it can help you.

Hurry up. Hello dear! I've helped you find the results:

Rain cools down the rain, which carries a lot of heat away from the atmosphere, which lowers the air temperature. The longer it rains, the cooler the temperature will be, especially at night. Because of the obscuration of the clouds, most of the sun's radiation is reflected by the clouds, and the ground will also rent the amount of infrared radiation energy to the air, and the energy will be reflected by the clouds, which will be received by the air, and the heat in the air will be absorbed by the condensation process of the rain.

As a result, the temperature drops, making it chilly. Cooling, sufficient water vapor, and simple cavity condensation nuclei are the three necessary conditions for precipitation. Dear The above is my reply, I hope it can help you.

This is because when rainwater evaporates, it absorbs the heat from the surrounding area, causing the air temperature to drop. In addition, rainwater can also carry heat away from the ground by coming into contact with the ground, further reducing the ambient temperature. Therefore, in general, rain will cause the temperature to drop.

However, specific temperature changes are also influenced by other factors, such as geographical location, seasons, and climatic conditions. 

Hello dear, I am the assistant of the life answerer, the star fruit teacher Thank you for your consultation Spallation Bi is happy to answer your questions: Rain usually lowers the temperature. This is because when rainwater evaporates, it absorbs the heat from the surrounding area, causing the air temperature to drop.

In addition, rainwater can also carry heat away from the ground by coming into contact with the ground, further reducing the ambient temperature. Therefore, in general, rain will cause the temperature to drop. However, specific temperature changes are also influenced by other factors, such as geographical location, lifting season, and climatic conditions.

Dear, thank you for your consultation, may you be warm in winter, may you not be cold in spring, may you have lights in the dark, umbrellas in the rain, may you be accompanied by a lover on the road, and what you want can be realized. Talk

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Why does it rain the night before it cools down.

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Hello, the answer is as follows: When the temperature drops, the water vapor in the air will condense into clouds and rain; When there is a high temperature, strong convective weather occurs due to the high temperature near the ground, and if there is enough water vapor in the atmosphere, precipitation will be formed, and it is often manifested as heavy rain. Therefore, the day v condition that can rain is that the temperature knows that the ridge chong drops, and when the temperature drops to a certain extent, it will rain the night before the temperature is lowered.

It can be explained this way.

If it is autumn or winter, cold air passes through and cold and warm air meet to cause precipitation. It can be understood as cooling by cold air first, and then causing precipitation.

If it is a thunderstorm in the evening of summer, it can be understood that precipitation is first produced by the rise of hot air on the surface, and then the colder air at high altitude is blown to the surface by convection.

In the case of a typhoon, the wind tends to blow first, and precipitation occurs when the typhoon approaches. The two are produced together.

The cooling is not caused by raindrops.

In fact, cooling and precipitation are two phenomena and cannot constitute a causal relationship.