So, dew point is a proxy measure of the actual amount of water in the air (by weight or pressure), while relative humidity is a measure of the fractional amount of vapor.

KDKA-TV Evening Forecast (8/28) 02:49 PITTSBURGH (KDKA) — Oftentimes in weathercasts, you'll hear KDKA-TV's First Alert meteorologists mention the relative humidity and dew point, but what are ...

By definition, the dew point is the temperature to which air must be cooled (at constant pressure) in order for it to become saturated or, otherwise put, have a 100% relative humidity.

The dew point and relative humidity are closely related, but the former is much more useful than the latter. Relative humidity helps meteorologists predict conditions favorable for wildfires and fog.

High pressure will build into the Upper Midwest through the weekend leading to quiet weather with sunshine and lower humidity ...

The dew point is the temperature that the air would have to be cooled to (at constant pressure) in order to reach saturation. As the temperature drops to the dew point, water vapor molecules ...

The relative humidity is 100 percent when the dew point and the temperature are the same. If the temperature drops any further, condensation will result, and liquid water will begin to form.

According to the National Weather Service, the dew point is the temperature where the air needs to be cooled to, at constant pressure, in order to achieve a relative humidity (RH) of 100%. At this ...

The dew point is what the air temperature would have to be for relative humidity to be at 100%. So a dew point of 60° with an air temperature of 60° is at 100% relative humidity.

For those interested in the numbers, here are the statewide averages of relative humidity (RH) and dew point for each state. A ranking (1=most, 50=least) is also included. State ...

So, dew point is a proxy measure of the actual amount of water in the air (by weight or pressure), while relative humidity is a measure of the fractional amount of vapor.