What was the highest and lowest temperature last Friday?

Weather data information: the national average temperature during the day is 5.9 degrees, and the average temperature at night is-1.8 degrees; Among them, the highest temperature appeared in Zhongsha, Hainan, reaching 30 degrees Celsius, and the lowest temperature appeared in Daxinganling area of Heilongjiang, reaching-17 degrees Celsius; The proportion of cities in China with sunny weather is 28%, cloudy weather is 32.4%, cloudy day 14.7%, rainy day 17% and snowy day is 4.2%. Generally speaking, it is mainly cloudy and sunny, and the temperature is cold. Minimize travel and outdoor sports. It is recommended to wear cotton and wool warm clothes.