Sun meter Sequim is the rain shadow’s geographic center. It averages 16.5 inches of rain a year, compared to Seattle’s 37 inches. Both Sequim and Port Townsend average 127 days of “mostly sunny” ...

Here’s another graphic created by the Weather Service, detailing areas with lower relative humidity: Olympic rainshadow forecast graphic. WSW winds 5K-10kft over Olympics.

But perhaps nowhere was the choice so stark than along the Olympic Peninsula where there the difference between several inches of rain and hardly any rain was just a few miles apart. During the 48 ...

The Olympic rain shadow weather phenomenon is the result of storms and prevailing winds typically coming from the south and west. They hit the Olympic Mountains, dropping up to 200 inches of ...

Sure, Sequim gets all the press for having 300 days of sunshine and only 18 inches of rain per year, thanks to the Olympic Rain Shadow but sometimes they lend it out to other regions. Case in ...