Meteorology and Weather

# What is relative humidity and how is it measured?

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###### 2015-10-18 01:29:23

Relative humidity is the percentage of water vapor in the air compared to the maximum amount of water vapor that air can contain at a particular temperature.

Relative humidity can be measured by an instrument called a psychrometer.

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## Related Questions

Relative Humidity is measured with a HygrometerHumidity is the amount of water vapor in the air.On hot days, when it feels sticky, the humidity would then be high.

There are several ways of measuring humidity: Absolute humidity is measured in [ML-3] usually grams per cubic metre. Relative humidity and specific humidity are both pure ratios and so have no units.

The relative humidity (RH) in a kitchen can be measured by using a humidity gauge. A maximum indoor relative humidity of 55% RH may be acceptable, but a 50% RH better is better.

Dew point is measured by measuring relative humidity. When the humidity has been determined, a series of mathematical equations is used to figure out the dew point.

It is measured in terms of percentage of humidity. A device to measure humidity is called hygrometer. The relative humidity of air can be measured by dry and wet bulb method.

why is relative humidity more useful than humidity?

It is called the "relative humidity". The outside air today could have saturation (100% humidity). But is is actually 42% relative humidity. That's "how much there is compared to how much there could be".

Specific humidity is the amount of water vapor found in a specific amount of air, and is measured in grams and kilograms, respectively. Relative humidity is percentage measurement of humidity based on the air temperature, where the humidity is comparing how much could be in the air versus how much is actually in the air.

Different types of humidity (specific, relative, and vapor pressure) are all measured with different units, although weathermen usually express the relative, which is measured as a percentage. For further help, I've attached a link in the related links below.

A measurement of how much water vapor is in the air at any particular place is called relative humidity. Relative humidity is measured with a psychrometer.

Fog is basically visible water particles in the air. One of my sensors outside measured the humidity with the fog, I came out with 95% - 100%.

30 to 50% of Relative humidity - the relative part of relative humidity being relative to the temperature.

Relative humidity is percentage of water relative to how much air can hold if saturated Absolute humidity is actual amount of moisture in the air

The relative humidity can increase it by letting more water into the air. The relative humidity can hold more than regular humidity.

Relative humidity is the amount of moisture that the air can hold. The lower the relative humidity, the faster that evaporation will take place. Low relative humidity equals dry air.

At limes of low humidity fluids evaporate more quickly because they can be easily taken up by the surrounding environment, at 100% humidity evaporation stops, evaporated water can be measured as relative humidity

Average Relative Humidity: Baton Rouge Relative Humidity (Morning) 89% Baton Rouge Relative Humidity (Afternoon) 62%

Most velocities are measured relative to Earth.Most velocities are measured relative to Earth.Most velocities are measured relative to Earth.Most velocities are measured relative to Earth.

Relative humidity expresses a percentage of humidity in the air to the maximum amount of humidity that could be in the air. For example: when the temperature rises the air will be able to hold much more humidity so the relative humidity will drop.

Humidity is normally measured and monitored at all temperatures.

As humid air with high relative humidity is changed such that humidity increases.(could be by many mechanism), the air becomes saturated at 100% relative humidity.

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