Yesterday, Friday January 13th 2006, was the 26th consecutive day of rain according to this The Seattle Times article.
It's not so much the consecutive days of rain that causes a problem as the saturation of the ground. We've had about a half inch of rain a day for a total of over 12 inches since mid December.
We have plenty of days with rain showers in the Pacific Northwest, but it works out fine keeping things green and on a lot of those days you will see a mixture of rain, cloudy skies and some sun. Not bad.
In fact Seattle has more days of partial sun than New York City or to put it another way it's cloudier in New York City than Seattle.
So we have quite a few mudslides happening in the Seattle area this January. Mud sliding on roads and railroad tracks. As they say there is a silver lining behind every cloud and maybe we will see a new (or actually old) plant used in the future to hold the soil and prevent mudslides.