The term rain comes from the Latin word pluvia , and like all climatic processes it is a phenomenon, however, it falls into the category of atmospheric phenomenon , which means that it is completely normal for it to occur due to the gases of the atmosphere. This process begins thanks to the condensation of the steam and the gases that are retained in the clouds, when these condense they become water and initially physically manifests as drops of water that may or may not become strong.


What is rain

The rain is an atmospheric phenomenon usually harmless , which helps all living beings, whether plants, animals or humans , as well as for the vitality much needed as to what the daily life and oxygenation .


The World Meteorological Organization defines rain as a simple precipitation of water particles, generally with a diameter greater than 0.5 mm , however, they are extremely dispersed, these sometimes even do not reach the speed to reach the earth’s crust , for which does not become rain and would become, again, simple vapor , which meteorologically this process is called virga ; if the diameter is smaller than the one previously exposed, it would be called drizzle .


It differs between drizzle, rain and heavy rain by their diameters , and this is measured in millimeters , every phenomenon has a starting point and rain is no exception, it depends on three things to become rain:

  • The atmospheric pressure .
  • Temperature.
  • Atmospheric humidity.
  • Training
  • features
  • Types
  • Causes
  • Effects edit
  • Applications
  • Measurement
  • Probability of rain
  • Importance


This process begins thanks to the condensation of the vapor and the gases that are retained in the clouds , when these condense they become water and it is initially physically manifested as drops of water that are generally of a diameter greater than 0.5 mm , without However, they are extremely dispersed , they sometimes do not even reach the speed to reach the earth’s crust, for which reason it does not become rain, but virga , spreading in the atmosphere again as vapor .


The most relevant characteristics of rain are:

  • It originates from the condensation of steam and gases in clouds.
  • They are measured in millimeters.
  • If the drops of water do not reach the earth’s crust, they evaporate again, waiting to be condensed again, this phenomenon is called virga .
  • It can be acid rain or normal.
  • Depending on the climate, it manifests itself in hail or snowfall.
  • It is a completely normal atmospheric phenomenon .


Some of the most recognized types of rain are the following:

  • Light rains.
  • Moderate rains.
  • Heavy rains.
  • Very heavy rains.
  • Torrential rains.
  • However, there are other ways of naming the types of rain, such as the following:
  • Acid rain.
  • Drizzle.
  • Squall .
  • Electrical storm
  • Downpour.
  • Monsoon.
  • Water hose.
  • Dew.


It is usually caused by environmental factors and the condensation of vapor in the clouds, however, when acid rains occur, it could be said that it is due to environmental pollution , since these are caused by gases pollutants that condense in clouds and this type of rain, unlike normal, is not a benefit to the overall health of plants or human beings.

Effects edit

Some of the effects of rain are as follows:

  • Nourish plants and green areas.
  • It carries water to the flows of the rivers, so that these then transfer the water to the sea.
  • It helps the oxygenation of all living beings.
  • Causes a hot and humid environment .


It has various uses, but generally helps what are plants and the oxygenation of human beings , in addition to this, some individuals collect it to clean sales and cars.


Rain is measured by millimeters and there is a specific instrument or utensil to measure it, it is distinguished as a rain gauge and is used in the same way to determine nearby climatic phenomena ; This instrument is of all types, all shapes and all sizes according to the client’s wishes and needs.

Probability of rain

The probability of rain is determined when the utensil or device called a rain gauge is used , which measures and predicts any type of phenomenon for the future.


Rain is extremely important both for planet earth and for every living being that inhabits it, since it is a phenomenon that nourishes every inch of the planet and together with it, it gives life to the plants that we enjoy every day and gives oxygen to human beings so that they achieve better health and a more bearable life.

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