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What is Relative Humidity?

The percentage of water vapor in the air relative to the maximum amount of water vapor the air can hold at a given temperature.

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Glossary

Condensation is the process by which water vapor in the air cools and changes into liquid water. This process is crucial...

Considerable cloudiness refers to weather conditions where a large portion of the sky is covered with clouds, but some clear...

A drainage wind that flows downhill due to gravity, often associated with cold air descending from elevated regions.

The expected rate of temperature decrease in an adiabatically rising air parcel when there is no heat exchange with the environment....

Confluence refers to the area where two or more air streams or bodies of water meet and combine. In meteorology, it often...

Nor'easter is a meteorological event commonly observed in the Northeastern United States and typically occurs during the...

The heating of the Earth by the sun causes daily changes in both the direction and speed of the wind. During the day, ground...

Conduction is the transfer of heat or electricity through a material without the material itself moving. This occurs when...

Cloud or rain droplets containing pollutants, such as oxides of sulfur and nitrogen, to make them acidic.

Temperature scale, abbreviated as °C, found by accepting the freezing point of water at one atmospheric pressure as zero...