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Oregon Water Science Center

USGS Data Grapher, Time Series with Percentiles

This is a data graphing utility that allows the user to build graphs of data from selected USGS stations with percentiles showing the range of historical data. Select the station, the parameter to plot, the starting and ending dates, and the years of interest for the graph. Then, click the button labeled "Make Graph."

Step 1: [Optional] Choose a basin from the drop-down list.


Step 2: Choose a site from the drop-down list.


Willamette River at Portland, OR (14211720)
Parameter Begin Date Last Approved Date Last Reading
 Discharge   Apr-02-2003 11:30   Apr-11-2019 16:00   Aug-23-2019 18:30 
 Stream Velocity   Apr-02-2003 11:30   Oct-01-2018 00:30   Aug-23-2019 18:30 
 Gage Height   Oct-01-1988 00:30   Oct-01-2018 00:30   Aug-23-2019 18:30 
 Sensor Depth   Jan-21-2009 13:30   Aug-02-2015 23:30   Aug-23-2019 18:30 
 Water Temperature   Jan-21-2009 13:30   Jul-03-2019 08:30   Aug-23-2019 18:30 
 Dissolved Oxygen   Jan-21-2009 13:30   Feb-08-2019 09:30   Aug-23-2019 18:30 
 Oxygen % Saturation   Jan-21-2009 13:30   Feb-08-2019 09:30   Aug-23-2019 18:30 
 pH   Jan-21-2009 13:30   Feb-08-2019 10:30   Aug-23-2019 18:30 
 Specific Conductance   Jan-21-2009 13:30   Feb-08-2019 10:00   Aug-23-2019 18:30 
 Turbidity   Jan-21-2009 13:30   Jul-03-2019 08:30   Aug-23-2019 18:30 
 Estimated Secchi Depth   Jan-21-2009 13:30   Jul-03-2019 08:30   Aug-23-2019 18:30 
 Total Chlorophyll   Jan-21-2009 13:30   Oct-01-2011 00:30   Aug-23-2019 18:30 
 Phycocyanin   Dec-18-2012 23:00       Aug-23-2019 18:30 
 fDOM (370/460)   Dec-19-2012 00:00       Aug-23-2019 18:30 
 Nitrate   Feb-15-2013 15:00       Aug-23-2019 18:30 
 Measurements at this site are available here at 30 minute intervals.
 Some data are provisional and subject to revision.
 More data from this site may be available from NWIS-Web.

Step 3: Choose the parameter to plot.

    Apply a -day running average.

Step 4: Choose starting and ending dates, and the years of interest, for the data in the graph.

Begin Date: -   Years:  
End Date: -
To select multiple years, hold down the Ctrl (Windows) or Command (Mac) key.

Step 6: Make the graph, or reset the form and try again.

Computation of the percentiles may take a minute or two.


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Page Last Modified: Monday - Feb 4, 2019 at 17:42:17 PST