What does zero mean in the weather forecast?

The temperature mentioned in the weather forecast is the air temperature measured in the open air without direct sunlight (usually measured in shutters). The highest temperature is the highest temperature in a day, which generally appears in 14- 15.

The lowest temperature is the lowest temperature in a day, usually before sunrise. China uses centigrade scale, which is expressed in degrees Celsius. Generally, observation is made four times a day, and the four hours are 02, 08, 14 and 20 respectively. Some stations observe three times a day, which are 08 hours, 14 hours and 20 hours respectively according to the actual situation.

Extended data:

Matters needing attention in weather forecast:

Low temperature: In the winter half year, when the cold air activity does not reach the cold wave level, but the temperature drops sharply, which can affect people's life, industrial and agricultural production and national defense construction, a low temperature or cooling forecast is issued.

Cold weather, large temperature difference between day and night, high air humidity, easy to catch a cold. Please pay attention to properly increase or decrease clothes and strengthen self-protection to avoid catching a cold.

It's cold, so it's recommended to thicken spring and autumn clothes such as coats and sweaters. Old and infirm people should wear coats, tweed coats and sweaters.

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