These data have not received final approval and as such are provisional and subject to final revision. The data are released on the condition that neither the USGS, the United States Government, nor the City of Portland may be held liable for any damages resulting from their use. More information about the quality of precipitation data is available. The red bars are hourly rainfall data. The blue line is the daily accumulation.
Any grey shaded areas represent missing data.
The magenta line represents the hour of the last data acquisition time.