Lake Washington is decent...probably 10-15 ft.
Around 47 degrees at depth, warming up to 54 degrees in the top 10-20 ft...great for deco stops.
This is the time of year I switch to lake diving for a couple of months.
How to tell a Northwest diver? Gear costs are in multiples of the value of the car driven to the dive site. (Scooters, rebreathers, cameras, fancy Drysuits, numerous tanks...)
It's all about priorities....