The frequency with which you should clean your gutters in Seattle depends on several factors, including the amount of rainfall and the number of trees surrounding your property. As a general rule of thumb, it's recommended to clean your gutters at least twice a year, once in the spring and once in the fall.
In Seattle, where the average annual rainfall is around 38 inches, it's especially important to ensure that your gutters are clean and clear of debris to prevent water damage to your home's foundation, roof, and walls. If you have a lot of trees around your property or if you notice that your gutters are becoming clogged more frequently, you may need to clean them more often, such as three or four times a year.
It's always a good idea to keep an eye on your gutters and to clean them as needed, rather than waiting for a major problem to develop. If you're not comfortable cleaning your gutters yourself, you can hire a professional gutter cleaning service to do the job for you.