Does it rains on the moon?

Actually, it does, after a fashion. But it certainly doesn't rain water.

The Moon, having no protective atmosphere, is frequently hit by many tiny meteors, and these blast rock into powder and fling it out into space. The powder then 'rains' down on the surface, creating a layer of dust. Over billions of years, the dust accumulated to its present depth of 1-2 inches. It is this dust in which the Apollo astronauts left many footprints and tire tracks.

No, the moon has no atmosphere to speak of. No atmosphere = no clouds = no rain.

Rain doesn't exist on the moon because moon has no appreciable atmosphere to form a water cycle which is the basic sequence in forming a rain. Water cycle (hydrologic cycle) by definition is the cycle of evaporation and condensation that controls the distribution of the earth's water as it evaporates from bodies of water, condenses, precipitates, and returns to those bodies of water and the moon lacks the ability to produce such cycle. Furthermore, the moon is always black and the radiation from the Sun strikes with full force on the surface of the Moon.

There's no atmosphere. Therefor clouds cannot devolop and precipitate, No.

No. There is no water on the moon and sense the moon is so small the gravitational pull is not strong enough to hold an atmosphere

To have rain or snow, we need to have water and an atmosphere of some kind. The moon has no significant atmosphere, so it has no tangible weather at all! Mars has only a very thin atmosphere but it does have weather. Strong winds can blow up big dust storms. Pictures from the Mariner spacecraft show that sometimes thin frost forms on the surface of the planet. Sometimes just after Martian dawn, we see an icy fog rising from the craters! I believe that it is too cold for rain, but frost and icy fogs have definitely been seen. And of course, Mars has polar caps of frozen water and carbon dioxide ("dry ice"). Perhaps it snows at the polar caps. The atmosphere of Venus is very thick and very hot. There is a little water in its clouds, but I don't believe it ever rains. Mercury has no atmosphere. The outer planets — Jupiter, Saturn, Uranus, Neptune, and Pluto — are extremely cold. Their atmospheres are mostly made up of methane, ammonia, nitrogen, and stuff like that. There are probably some ice crystals in their atmospheres too, but they probably just blow around in the strong winds. So there might be a sort of "snow" but not very much like what we are used to on Earth.
Source(s):
Dr. Cathy Imhoff of the Space Telescope Science Institute.

NO it does not rain on moon because there is no atmosphere on moon.

No. The moon has no atmosphere in order to hold water vapor. Additionally, if there even is water on the moon, then it's in small pockets of ice at the poles. The only thing that would rain down on you on the moon would be rock debris from a meteor impact or energized particles from the solar wind.

Ed

No. Unless we're talking meteor showers.

No precipitation occurs at the moon because the absence of an atmosphere. The moon doesn't have an atmosphere because it's too small, and thus doesn't have enough gravity to hold an atmosphere.