Is -30℃ extremely cold or extremely cold?

It belongs to extreme cold. "Extreme cold" is an extreme temperature concept. According to Shanxi Evening News, the meteorological specialty has a "cold degree scale", which divides the cold into eight grades:

The first degree is extremely cold, and the temperature is below -40℃;

The second level is extremely cold, ranging from -30℃ to-39.9℃;

The third level is "severe cold", from -20℃ to-29.9℃;

The fourth grade is "severe cold", ranging from-10℃ to-19.9℃;

The fifth grade is "slight cold", ranging from -5℃ to-9.9℃;

The sixth grade is "light cold", 0℃ to-4.9℃;

Grade 7 is "slight cold", 0℃ to 4.9℃;

Grade 8 is "cool", ranging from 5℃ to 9.9℃.

It can be seen that extreme cold is the coldest level in the "cold degree scale".

After the Spring Festival of 20 12, the temperature in most parts of China was generally low, and the local areas of Inner Mongolia and Heilongjiang suffered from continuous low temperature weather. The lowest temperatures in Mohe River in Heilongjiang, Tuli River in Inner Mongolia, Genhe River, Hailar, yakeshi and Chenbaerhuqi are generally below MINUS 40℃, which is extremely cold. In Asia, Japan, South Korea and other countries have also suffered the coldest winter in recent years.

The temperature at 38 observation points in Japan is the lowest since meteorological observation, and the lowest temperature in Hokkaido is -32.6℃, which is the lowest temperature recorded in Japan. The temperature in Seoul, South Korea also dropped to-17℃ on February 2, the lowest in nearly 55 years.

Genhe city is famous for its cold. In the season of April 9, it has been dripping into ice, and rivers are frozen. However, there is a cheerful "ice-free river" gurgling. No matter how low the temperature is, the river has never frozen for years. Not only will it not freeze, but also a large number of aquatic plants will grow, forming a unique winter landscape. This is a city that walks in beautiful colors all year round.

The lowest temperature in Mohe appears at 1969, and 13 is -52.3℃ in February, and the temperature in the two places can reach about -50 degrees. You can experience it for yourself.

People's Network-Cold is also graded to see what is the extremely cold weather of "frozen chin"