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 condense.

Dew point and relative humidity, two terms that have floated around many weather forecasts over the years. What exactly do they mean and when are they best used to describe the conditions outside? Let ...

The short answer is both terms are different and describe different things about moisture in the air. The dew point is another temperature value. It is the temperature air needs to cool to become ...

Before you step outside, you may want to know how humid, or "sticky" it feels. That comes down to knowing the dew point. Dew point is more commonly discussed in the summertime and is a good measure of ...

ROCHESTER, N.Y. (WHEC) – We are going to talk directly to the weather geeks. Today we look at the difference between dew point and relative humidity. The dew point is basically a simple concept. It is ...

Meteorologists talk plenty about the dew point temperature during the summer, as it is a great indicator of humidity and a condition to watch when severe weather is possible. So what is it? The dew ...

KNOXVILLE, Tenn. — As we head into the spring and summer, meteorologists are going to talk more about humidity and dew point. But, what’s the difference? You might be used to checking the humidity ...

Dew point/relative humidity questions come up fairly often and this is a good one. Water vapor in the atmosphere is pretty important for deep-sky observing and photography. The atmosphere can only ...

This week, there has been lots of discussion regarding the dew point and how it relates to humidity. While most of us have probably heard of the dew point, do you actually know what it is?

NORFOLK, Va. — Most summer days, you hear us talk about “humidity” when describing how the air feels. While many people are familiar with the term relative humidity — the percentage of water vapor in ...

I've long wondered whether dew point or relative humidity is more important for good seeing. Which would be better: a cool night with lower dew point but higher humidity, or a warm night with higher ...