Price trends continue to be positive in the Seattle area, year over year. It appears we are seeing some seasonality return to the market as the median sales price has inched down from a late spring/summer high water mark.
When determining the directionality of the market it's important to keep seasonality in mind and get a bit of market history for the subject market to see if the trends are truly and indication of overall market direction or just a function of a market seaonal pattern.
Here's a link to the article: http://seattletimes.com/html/businesstechnology/2019559156_caseshillerxml.html?prmid=head_main
In summary, the article says home prices in the Seattle metropolitan area(King, Snohomish and Pierce counties) rose 3.4 percent in August over the same month last year, but they were down 0.1 percent from July.
If we look at King County by itself, the market looks like this: