Why is it so cold in the winter of 2020?

Winter is coming, and many people begin to prepare preventive measures. Some people say it will be cold in 2020, so why is it so cold in winter in 2020? Is 2020 the coldest winter?

Why is it so cold in the winter of 2020?

According to the research of meteorologists, around August 2020, the sea surface temperature in some parts of the equatorial Pacific was lower than normal, and a large-scale cooling began to appear in the central and eastern regions of China, especially in the southern region, which was the most obvious and largest cold air in the second half of 2020. In addition, La Nina may occur in 2020, which will lead to severe cold, hurricanes and heavy rain, which is also the reason why experts predict the winter weather in 2020.

Is 2020 the coldest winter?

No, there are several reasons.

First of all, the reason why 2020 is colder than in previous years is mainly because of the influence of La Nina phenomenon, which leads to the lower sea surface temperature in some parts of the equatorial Pacific this year. However, we should know that La Ni? a phenomenon is periodic, not only in 2020, but usually once every 3-5 years, and sometimes it may be once every 10, which means La Ni? a phenomenon also occurs before 2020, so it is in 2020.

Secondly, with the global warming, the temperature of the earth is also rising. If it is not affected by La Nina phenomenon, 2020 is likely to be a warm winter, so it can be concluded that 2020 is not the coldest year.

When will it start to get cold in 2020?

65438+February 2 1 entered the cold weather and began to get cold.

Generally speaking, the beginning of winter is the winter solstice, which indicates that the climate has entered a cold day. At this time, the weather will gradually get cold. It used to be autumn, and the weather can only be described as cold. But once it gets cold, the surrounding weather will start to get cold. For several days in a row, it is a process from extreme cold to warm. The cold disappears and the warmth is long, which is the representative of cold weather.

When is the coldest winter in 2020?

The coldest time in winter in 2020 is generally from slight cold to severe cold, because slight cold marks the official start of winter season, and its cold air accumulation time is long, which is the time when the weather is cold but not extreme, while severe cold is the coldest time in the whole winter. At this time, we should pay attention to the weather station's forecast of strong cold air, guard against the influence of strong winds, rain and snow on Spring Festival travel rush, and pay attention to cold and antifreeze, which is also called "three or nine days".

Why is it coldest in March and September?

Generally, during the winter solstice, the daytime is the shortest, the angle between direct sunlight and the ground is the smallest, and the sunshine intensity per unit area on the ground is the smallest. At this time, the ground gets the least solar heat every day, and the daily heat budget deficit of the ground has not reached the maximum.

Although the days get longer from winter to the future, the growth rate is very slow. From winter to March 9, the average daily growth rate is only about one minute. At the same time, the direct angle between the sun and the ground slowly increases, which is why March 9 is the coldest day.