Is -20℃ 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".

Extended data

Continuous low temperature weather will have a great impact on people's daily life, work and agricultural production. In an interview with Beijing Evening News, meteorologists reminded outdoor workers and ice and snow tourists to pay attention to adding clothes to avoid being infected with influenza virus and prevent respiratory, cardiovascular and cerebrovascular diseases.

Severe cold can cause freezing everywhere outdoors, and the public should strengthen their awareness of anti-freezing and anti-skid. Animal husbandry and protected agriculture should strengthen the cold and warm work, and farmers should provide heat collection measures for pens and poultry houses to avoid property losses.

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