@jimhd I started a reply to you and my computer screen went blank and then black and the beginnings of my message to you were gone. . . .
Yes, the west side of the Olympic Peninsula is much wetter that Olympia. Once on a forestry field trip starting in Forks and going inland along the Hoh River, it rained 3.5 inches during the day we hiked in. We had been told to wear good rain gear, so I wore my canoeing suit which was rubberized, but the water on the trail went over my boots so I was sloshing most of the day. One woman wore sweats. She was cold and miserable, and could have been in danger if we hadn't taken care of her when we got back to the bunkhouse. We put her in a hot shower, and someone took her sweats to a local laundromat to dry them out; someone else loaned her clothes until hers were dry. More than one person ended up at the laundromat that evening.
Olympia's annual average precip is 50 inches. Bend gets about 13. Ponderosa pine needs 11 to grow. I'm right on the E edge of Bend, right at the transition between ponderosa and juniper, which says that it gets about 11 inches of rain here.