It is true. In Seattle it does rain and rain and rain. You are going to need an umbrella and a good raincoat. But don't panic. While it does rain 150 days a year on average, most of Seattle's rain comes in the form of light drizzle and rarely lasts all day.
Storms are rare as is snow.
In fact winters in Seattle tend to be mild. The average high for January, our coldest month, is 45 degrees. Summers are beautiful, sunny, and mild. The average high for August is 74 degrees. Those of you from other parts of the country may find the break from lightning storms, snow, and heat waves nice, but may also find yourself really missing the sun.