Why Is Sequim So Dry?


By By Steve Pool

SEATTLE - Sequim is the driest spot in western Washington, getting just 18" of rain a year. And they can thank their proximity to the Olympic Mountains.

Most of our rainy weather around here comes from the southwest. The moist air will rise up the southwest side of the Olympics, then condense and squeeze out its moisture. (Think of the Olympics as a big sponge in this case.) That's why the Olympic rain forests get over 200" of rain a year.

On the flip side, once the air reaches the summit, all its moisture is gone. Plus, as it then goes down the northeast side of the Olympics, it sinks and dries out -- right over Sequim. That's known as the Olympic Rain Shadow.

For More Information:

KOMO Weather FAQ.

Your Photos

YouNews Sunset Beach, Oak Harbor Sunset Beach, Oak Harbor
I took this photo tonight at 4:37. Just a calm and beautiful day on the Salish Sea.
YouNews Bordeaux & Paris Bordeaux & Paris

This is my UW daughter and her weekly video from Paris......I think she does a great job and would like to share with others.......especially touching seeing video of where the attacks happened and her feelings....a future news caster...