According to the inquiry of Aiwen Education Network, the minimum temperature for 24 hours a day is 4:00-6:40 in the morning. In general, after sunset, the income of heat in the ground and air is less than the expenditure of heat, and the temperature reaches the lowest point within one hour of sunrise. For example, the latest sunrise in North China is around 7:36, and the latest sunrise is after 4:36, so the daily minimum temperature is between 4: 00 and 6: 40.

Temperature The temperature of the gas in the atmosphere is the temperature, which is a common term in meteorology. It is directly affected by solar radiation: the more solar radiation, the higher the temperature. China is expressed in degrees Celsius (℃).