Temperature, probability of rain, clouds and ultraviolet rays are some of the information you need to know before leaving home. (GlobeLiveMedia/Jovani Perez)

Weather predictions, based on observation and mathematical modelshelp predict the state of the atmosphere at a given time and place based on various relationships such as temperature, humidity, pressure, precipitation or wind.

Weather forecasts are practices practiced for hundreds of years, even before the Christian era, based essentially on the observation of the configuration of the clouds, the wind, the time of the year, although initially these they did not succeed.

It was only with the emergence of new technologies (such as computers) that mathematical models began to be implemented, which made it possible to make more accurate predictions, becoming a fundamental factor for the transport (land, sea or air), agriculture, tourism, disaster prevention, public health and even military operationsbeyond deciding whether or not to carry an umbrella or whatever outfit become.

Here is the weather report for the next few hours in Washington DC:

During the day temperature it will reach a maximum of 20 degrees, the probability of rain it will be 25%, with 54% cloudiness, while the wind gusts will be 45 kilometers per hour.

As for ultraviolet rays, they should reach a level of up to 3.

For the night, temperature will reach 8 degrees, while precipitation forecast It will be 0%, with 31% cloudiness, while wind gusts will reach 27 kilometers per hour during the day.

Washington DC is the capital of the United States, located in the northeast of the North American country, along the Potomac River, surrounded by the states of Maryland and Virginia.

The climate of the American capital is mainly tropical, with the monsoon subtypewhich means that it is hot all year round, with a small dry season and a predominantly rainy season.

The hottest temperatures they are felt in July, when it is around 40 degrees; on the other hand, it is in January and February that the cold reigns to the point of reaching zero degrees.

(Picture: File)
(Picture: file)

Occupying a large swath of territory, the United States reports a wide variety of climates, almost all of them.

East of the United States Two central climates predominate: the humid subtropical and the humid continental.

In the American Northeast the most dominant climate is the humid continental which is characterized by constant rains throughout the year which become storms during the summer and snowfall throughout the winter.

In the southeastern United States the prevailing weather conditions are subtropical wetland it has hot summers, cool winters and abundant rains.

American West Sidethere are at least three major predominant climates: semi-arid, arid and Mediterranean.

The semi-arid climate, in its cold subtypeencompasses the most central, western and north-south part of the United Statescharacterized by low rainfall and low temperatures.

In the southwestern United States this is where he is arid climate, both in its cold and hot subtypes. In the cold and arid regions, the winters are freezing and the summers are mild, while in the hot and arid regions, the summer records extremely high temperatures and in the winter the weather is mild. In both cases, precipitation is rare.

The Mediterranean climate enroll yourself in the most coastal area of ​​the American West, from north to south and is characterized by its mild and rainy winters, as well as its dry and hot summers.

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