Rain

thumb|upright=1.35|Heavy rainfall on a roof

thumb|An umbrella alt=|thumb|Woman holding a parapluie at Zenkō-ji, Nagano, JapanAn umbrella (parasol or rarely parapluie) is a folding canopy supported by wooden or metal ribs that is mounted on a wooden, metal, or plastic pole. It is usually designed to protect a person against sun or rain. Initially they were used in warmer countries for shade from the sun, but in modern times they evolved to also be used for protection from rain. Etymologically, the term umbrella is to be used when protecting from the sun, but is also commonly used when protecting from rain. Some countries specifically use

thumb|upright=1.2|Advancing monsoon clouds and showers in Aralvaimozhy, near Nagercoil, [[Tamil Nadu, India]] thumb|upright=1.2|Monsoon clouds arriving at Port Blair, Andaman, India

rain that is unusually acidic

upright=1.35|thumb|Lightning from a thunderstorm near Pritzerbe, Germany

yearly period of high rainfall, especially in the tropics

thumb|240px|Drizzle in Norfolk, [[England.]]

thumb|Reflection (physics)|Reflections in a forest puddle

meteorological instrumentation

thumb|upright|A man wearing a yellow raincoat with hood A raincoat is a waterproof or water-resistant garment worn on the upper body to shield the wearer from rain. The term rain jacket is sometimes used to refer to raincoats with long sleeves that are waist-length. A rain jacket may be combined with a pair of rain pants to make a rainsuit. Rain clothing may also be in one piece, like a boilersuit. Raincoats, like rain ponchos, offer the wearer hands-free protection from the rain and elements; unlike the umbrella.

thumb|Soil and water being splashed by a raindrop

component of a water discharge system for a building

device on vehicle

phenomenon observed sporadically during the summers in the southern Indian state

thumb|A video recorded nearing the end of a squall, caused by a dry microburst (strong downdraft); after this video was shot, it started raining. A squall is a sudden, sharp increase in wind speed lasting minutes, as opposed to a wind gust, which lasts for only seconds. They are usually associated with active weather, such as rain showers, thunderstorms, or heavy snow. Squalls refer to the increase of the sustained winds over that time interval, as there may be higher gusts during a squall event. They usually occur in a region of strong sinking air or cooling in the mid-atmosphere. These force

Rainy Season in East Asia

right|thumb|200px|"Ameonna" (雨女) from the Konjaku Hyakki Shūi by [[Toriyama Sekien]] right|thumb|200px|"Hyakumonogatari Ameonna" (百物語 雨女) by Utagawa Yoshiiku Ameonna (, "rain woman") is a Japanese yōkai thought to call forth rain, illustrated in Toriyama Sekien's Konjaku Hyakki Shūi as a woman standing in the rain and licking her hand.

Rainmaking, also known as artificial precipitation, artificial rainfall and pluviculture, is the act of attempting to artificially induce or increase precipitation, usually to stave off drought or the wider global warming. According to the clouds' different physical properties, this can be done using airplanes or rockets to sow to the clouds with catalysts such as dry ice, silver iodide and salt powder, to make clouds rain or increase precipitation, to remove or mitigate farmland drought, to increase reservoir irrigation water or water supply capacity, to increase water levels for hydropower g

sub-field of meteorology: study of rainfall

form of precipitation containing visible dust

thumb|A ''ch'ŭgugi at Jang Yeong-sil Science Garden in [[Busan]] '''Ch'ŭgugi''' () were rain gauges invented and used during the Joseon dynasty of Korea. They were invented and supplied to each provincial office during the reign of King Sejong the Great. As of 2010, only one ch'ŭgugi remains, known as the Geumyeong Cheugugi (), which literally means "ch'ŭgugi'' installed on the provincial office's yard." It is designated as National Treasure #561 of Korea and was installed in the provincial office of Gongju city, 1837 by King Yeongjo. In addition, the official measure of rainfall by ''ch'ŭgugi