It is dominated by the polar continental air mass and the Arctic air mass all year round. The average annual temperature is below 0℃. The average temperature of the hottest month is higher than 0℃, but it is still below 10℃, which is the index that distinguishes it from the permafrost climate and the constantly humid cold winter climate. Under this climatic condition, only the tundra community of low-grade plants can grow, so it is named after it. In summer, the daily highest temperature can sometimes rise to 15-18℃, but there is frost every month. Winter is long, the days are short, and the extreme minimum temperature can reach -40 to -45℃. The annual precipitation is generally less than 350mm, mainly due to cyclonic storms. It is mainly distributed along the coast of the northern hemisphere facing the Arctic Ocean, and its southern part borders with the constantly warm cold winter climate. In the southern hemisphere, except for some islands, there is basically no tundra climate because the corresponding latitude is surrounded by the ocean. Article from: Related theme articles: China Meteorological Administration Chengde explores performance management to promote rapid development of meteorological disaster prevention and mitigation work Liaoning Anshan 30-day weather forecast Experts from Yunnan Provincial Meteorological Bureau analyze the three causes of Yunnan drought Queshan County, Henan Province, 30-day weather forecast Xinjiang Hotan issued five earthquakes within three hours, the highest was 4.8 magnitude, no casualties - Weather Network