What Is The Dew Point?

Tools

By By Steve Pool

SEATTLE - The dew point is the temperature at which the air becomes 100% saturated -- as in, it can't hold any more water vapor. When the temperature and dew point are close together, that's when we get fog. But the lower the dew point, the drier the air.

For example, if the temperature is 80 degrees with a dew point of 60, that feels quite humid. But if it's 80 degrees with a dew point of 45 degrees, that's much drier and more comfortable.

East of the Rockies, dew points can range from 60-70 degrees, which feels quite humid. Around here, the dew points are mainly between 45 and 55 degrees in summer, which keeps the weather very comfortable -- even on warm days.

For More Information:

KOMO Weather FAQ

Your Photos

YouNews Fire and Ice Sunrise in Poulsbo Fire and Ice Sunrise in Poulsbo
This was a once-in-a-lifetime shot of a brilliant sunrise on the water of Poulsbo. When I saw the pink light streaming into my window early that morning, I ran outside to capture this photo. Once I saw the photo, I realized that the sunrise created a fire and ice effect that was stunning.
YouNews Epic storm clouds over Kitsap County Epic storm clouds over Kitsap County
Driving toward Silverdale on Hwy 3, from brilliant fall sunshine, into this churning black storm, was unlike anything I've witnessed in Washington. Sheets of rain, gusts of wind, and a completely black sky overtook the area, while the periphery stayed sunny.