Common term in meteorology for water which is either in liquid form of rain or thunderstorm and / or in solid form of hail, Sleet, grizzles or snow falling from clouds onto the earth, or as surface precipitation directly through condensation (as with dew ) or resublimation, that is, the immediate transition of a substance from the gaseous to the solid state (as in the case of frost) on objects such as the surface of the earth. The amount of precipitation required in viticulture also depends on the soil conditions, such as water discharge and Water storage capacity dependent. The annual lower limit is at least 200 mm of rainfall, for quality viticulture there is an average of 500 mm, in warmer climate with high evaporation 750 mm required.
Provided that the soil conditions are right, there is no upper limit, because even more than 1,500 mm can be handled within a short time, especially in hot areas. However, the time of precipitation in the growth cycle his. A heavy rain just before vintage, especially after prolonged drought, can cause the grapes to swell and the content of sugar. acids and flavorings dilute. An artificial one irrigation is regulated differently within the EU in terms of country responsibility, mostly in terms of wine law. The amount of precipitation is one of the criteria for the so-called Weinbauwürdigkeit,
Thunderstorm: By FelixMittermeier from Pixabay
Rain: By Krzysztof Pluta from Pixabay
Hail: Von Darkone - Self-photographed , CC BY-SA 2.0 , Link
Sleet: By Hilde Stockmann from Pixabay
Raindrops: By TheSkunk - Own work, CC BY-SA 3.0 , Link
edited by Norbert FJ Tischelmayer - June 2019