Editor’s note: The KOIN 6 Weather team is presenting weather and science lessons to help serve our teachers and students. Click here for more lessons. PORTLAND, Ore. (KOIN) – I would like to preface ...

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 ...

TUCSON, Ariz. (KGUN) — The First Warning weather team often refers to dew point and humidity. Most people know these terms have something to do with moisture, but a lot of people don’t really ...

Noel Kirkpatrick is an editor and writer based in Tacoma, Washington. He covers many topics, including animals, science, and the environment. Complaining about the humidity is a go-to conversation ...

Fog can form when the humidity is less than 100 percent, but it generally is in the range of 95 to 100 percent when fog is present. Occasionally, though rarely, the relative humidity will be 100 ...

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?

Let’s first state the obvious. Most techs are intimidated by Psychrometric charts and Mollier diagrams, we just are. While there are some pretty complicated formulas that back up these diagrams, using ...

What does the dew point measure? Mike Moss: The number of a dew point, for example 62, represents the temperature at which a given air mass would be saturated with water vapor, so that any additional ...

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 ...

It’s not too hard to find the words to describe New Hampshire’s weather over the past few days. Some words come to mind like oppressive, sticky, tropical, clammy and sweaty.Simply put, it’s humid. But ...

Humidity can make or break a summer day. A sunny day with a temperature of 85 degrees can feel pleasant when the humidity stays low, but once the humidity cranks up, that same day can become ...