How to read weather forecast figures

There are three figures behind the weather forecast:

First of all, if it is raining or snowing, the percentage number next to the raindrop or snowflake icon represents the probability of rain or snowfall.

Second, if it is sunny or cloudy, there is no such percentage.

The third is "Fahrenheit", which is expressed by F, and F= 1.8 times Celsius +32 degrees, so if it is 75 degrees, then (75-32)/ 1.8=23.9 degrees Celsius, which is about 24 degrees Celsius.

What do you think of the weather forecast?

temperature

That is, the atmospheric temperature, the atmospheric temperature of a day is between two values. Because the atmosphere is in contact with the earth, the temperature will affect the surface temperature.

relative humidity

Theoretically, with the same relative humidity, the absolute humidity at each temperature value is different, because the saturation of the atmosphere is different at different temperatures, and the higher the temperature, the higher the saturation. Relative humidity can reflect human comfort.

phenomenon

Sunny, cloudy and cloudy are all atmospheric phenomena. According to cloud cover and precipitation, people can feel the weather most intuitively.

wind direction

Wind power from 0 to 18 means from small to large, and typhoon is above 12. The wind direction is north wind and south wind, etc. The north wind refers to the wind blowing from the north, not the wind blowing to the north.

air quality

The air quality is mainly observed in PM 10, and there are also air quality reports of PM2.5 The air quality grades are divided into excellent, good, moderate and light pollution, moderate pollution and heavy pollution.