Traditional Culture Encyclopedia - Weather inquiry - What signal is the weather forecast at 0 o'clock?

What signal is the weather forecast at 0 o'clock?

The weather forecast 0 is negative. According to relevant public information, the weather forecast is below zero, that is, a minus sign is added before the temperature figure. The minus sign "-"is also called minus sign, which means that the temperature is below zero. For example, the highest temperature in the whole day is minus 5 degrees Celsius, which means minus 5 degrees Celsius.