In some countries and regions of the world, the temperature is below -30°C for most of the year, and in some areas, the temperature is even lower. For example, in some European countries (such as Russia), the historical minimum temperature is -71°C, and the lowest minimum temperature in North America is -63°C. In northern my country, Harbin, Changchun and Hohhot are the TOP3 coldest cities in China. Meteorology The extreme low temperature recorded at the station was -58°C. LED displays in low-temperature areas face tremendous challenges.