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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   Oct-31-2019 09:30   Jul-27-2020 09:00 
 Stream Velocity   Apr-02-2003 11:30   Oct-01-2018 00:30   Aug-03-2020 12:30 
 Gage Height   Oct-01-1988 00:30   Oct-31-2019 09:30   Aug-03-2020 12:30 
 Sensor Depth   Jan-21-2009 13:30   Aug-02-2015 23:30   Aug-03-2020 13:00 
 Water Temperature   Jan-21-2009 13:30   Jun-10-2020 10:00   Aug-03-2020 13:00 
 Dissolved Oxygen   Jan-21-2009 13:30   Jun-10-2020 10:00   Aug-03-2020 13:00 
 Oxygen % Saturation   Jan-21-2009 13:30   Jun-10-2020 10:00   Aug-03-2020 13:00 
 pH   Jan-21-2009 13:30   Jun-10-2020 10:00   Aug-03-2020 13:00 
 Specific Conductance   Jan-21-2009 13:30   Jun-10-2020 10:00   Aug-03-2020 13:00 
 Turbidity   Jan-21-2009 13:30   Jun-10-2020 10:00   Aug-03-2020 13:00 
 Estimated Secchi Depth   Jan-21-2009 13:30   Jun-10-2020 10:00   Aug-03-2020 13:00 
 Total Chlorophyll   Jan-21-2009 13:30   Oct-01-2011 00:30   Aug-03-2020 13:00 
 Phycocyanin   Dec-18-2012 23:00       Aug-03-2020 13:00 
 fDOM (370/460)   Dec-19-2012 00:00       Aug-03-2020 13:00 
 Nitrate   Feb-15-2013 15:00       Aug-03-2020 13:00 
 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