The lowest temperature in the northern hemisphere has been recorded. I am in Shenzhen. Is it possible to snow?

In a day, when is the temperature highest and when is the temperature lowest?

Generally speaking, the highest temperature should be around 2 pm and the lowest temperature should be around 4 am. Because at 2 o'clock in the afternoon, the sun has reached the highest irradiation point, and at 4 o'clock in the morning, it is 1. There is no sunshine, only cold.

When do the highest and lowest temperatures appear in a day?

When do the highest and lowest temperatures appear in a day? On a sunny day, the highest temperature appears between14 and15 in the afternoon, and the lowest temperature appears when the sun is about to come out in the morning, which is the lowest temperature of the day. If the weather changes suddenly, the highest temperature in a day often appears before the storm, and after the storm, it is when the temperature is relatively low, while the lowest temperature often appears before the sun comes out the next morning, which is the lowest temperature the next day, and it is also easy to be the lowest temperature since three or five days.

When is the lowest temperature in a day?

In a day, the highest temperature is around 2 pm, and the lowest temperature is around sunrise.

The hot and cold weather is mainly determined by the temperature, and the fundamental factor affecting the temperature is the intensity of solar radiation. Solar photothermal is not the main reason for the direct temperature rise. The direct absorption of solar heat energy by air is only about 14%, while 43% of the energy in the visible region is absorbed by the ground. When the ground absorbs solar radiation heat, it is conducted into the air through radiation, convection and other forms, which is the main reason for the temperature rise.

After noon, solar radiation began to weaken, but the ground still absorbed more heat than it consumed. Until about 1 in the afternoon, the ground temperature reached the highest and the ground radiation reached the strongest. Because it takes a certain time for heat to transfer from the ground to the atmosphere, the temperature near the ground reaches the highest at about 2 pm, and the atmospheric reverse radiation also reaches the maximum in a day.

Similarly, the atmosphere mainly loses heat in the form of reverse radiation and atmospheric radiation, and there is no solar radiation to supplement heat before the next sunrise, so the temperature reaches the lowest value of the day before and after the next sunrise.

According to foreign media, the World Meteorological Organization announced that 199 1 12.22 measured in Greenland, Denmark is the lowest temperature recorded in the northern hemisphere. This record was previously held by Russia.

According to the report of Effie on September 23rd, this temperature was recorded nearly 30 years ago by klinck automatic monitoring weather station near the highest point of Greenland ice sheet, which is located at an altitude of 3105m.

According to the report, the lowest temperature measured in the northern hemisphere is -67.8 degrees, which was measured in Yeyansk in February of 1892 and in Oymekan in June of 1933, both of which are located in northern Siberia, Russia.

A spokesman for the World Meteorological Organization said that this new record was discovered and verified by the staff of the organization in the archives of weather and climate extreme events 30 years later.

The spokesman pointed out that the lowest temperature recorded on the earth is still -89.2 degrees, which was measured at the then Soviet Union and now Russia's Oriental Station on July 2/983/KLOC-0.

According to the report, this new record is very far away, which is in sharp contrast with the current situation. For example, on June 20 this year, Yogyakarta experienced a high temperature of 38 degrees. The World Meteorological Organization is conducting a study to determine whether this is the highest temperature ever recorded in the Arctic Circle. (Compile/Liu)

This is a floating iceberg photographed on August 15 near Kurusuk Point, Greenland, Denmark. According to the data released by the Danish Meteorological Bureau, the melting amount of Greenland ice sheet in July this year was as high as19.7 billion tons, more than four times that under normal circumstances.