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What is Relative Humidity?Relative humidity is a measure of the amount of moisture in the air relative to the total amount of moisture that the air can hold. For instance, if the relative humidity is 50%, then the air is only half saturated with moisture. Warmer air can hold more moisture than colder air. Why is Relative Humidity Important?Without humidity, there would be no clouds, no precipitation, and no fog. Humidity is simply water vapor in the air, which is needed to form rain. Additionally, water vapor holds heat in the air. It is a greenhouse gas, which means it is a gas that absorbs heat and warms the atmosphere. This is why humid air feels warmer.
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Air Quality
