Accelerometer scour monitors were deployed on the Cedar River, Washington from 2013 to 2014 as part of a study on the timing of streambed scour at 73 locations in salmon-spawning habitat. This data release contains data of the three-dimensional orientation recorded at 20- to 30-minute intervals for the 46 accelerometer monitors that were recovered in 2014. Each accelerometer scour monitor was comprised of three individual accelerometers that were deployed in a vertical profile within the streambed.