What is the only element that can describe the weather on the moon?

The only factor that can be used to describe the weather on the moon is temperature.

The moon is the closest natural satellite to the earth, with extremely harsh surface conditions and no natural elements such as atmosphere, water and life that are common on the earth. Therefore, the weather on the moon is completely different from that on our earth.

On the earth, we can describe the weather by feeling temperature, humidity, wind speed, wind direction, precipitation and other factors. However, because the moon has no atmosphere, there are no weather phenomena such as wind and rain. At the same time, there are no clouds on the moon, because the formation of clouds requires the condensation of water vapor in the atmosphere. Therefore, temperature has become the only factor to describe the weather on the moon.

The temperature on the moon is extremely extreme, and the surface temperature can range from-180℃ to+130℃. During the day on the moon, the surface temperature in the direct sunlight can be as high as+130℃, and it will drop to-180℃ at night. This extreme temperature change is fatal to any living thing.

In addition, because the moon is not protected by the atmosphere, the solar radiation and cosmic ray radiation on its surface are much stronger than that of the earth. These radiations will corrode and peel off the lunar surface, resulting in the continuous evolution of the lunar surface.

Three weather phenomena on the moon different from those on the earth;

1, large temperature difference between day and night: because the moon has no atmosphere, it can't alleviate the temperature difference between day and night through the heat insulation of the atmosphere like the earth, so the temperature difference between day and night on the moon is large. During the day on the moon, the surface temperature in the direct sunlight can be as high as+130℃, and it will drop to-180℃ at night. This extreme temperature change is fatal to any living thing.

2. Long sunshine time: Because the rotation period of the moon is the same as that of period of revolution, one day on the moon is equivalent to one month on the earth. The sunshine time on the moon is 14 earth days in one day, while the sunshine time in one night is 10 earth days. This long-term sunshine and night have a great influence on the physical and chemical processes on the surface of the moon.

3. No weather phenomena such as wind, rain and lightning: Because the moon has no atmosphere, there are no weather phenomena such as wind and rain. At the same time, there are no clouds on the moon, because the formation of clouds requires the condensation of water vapor in the atmosphere. Therefore, there are no weather phenomena such as wind, rain and lightning on the moon, which makes the surface of the moon more dry and stable.