USGS 14203500 TUALATIN RIVER NEAR DILLEY, OR

PROVISIONAL DATA SUBJECT TO REVISION

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Station operated in cooperation with the Bureau of Reclamation and the U.S. Army Corps of Engineers.

NOTE: River forecasts and additional data can be obtained at the 
National Weather Service's Advanced Hydrologic Prediction Services web page.

NOTE: The most current shifted rating for this site can be found at USGS Rating Depot website.
Available Parameters Available Period
  
2016-03-26  2025-09-30
1986-10-01  2025-10-01
2007-10-01  2025-10-01
2016-03-26  2025-09-30
2020-02-19  2025-10-01
2016-03-26  2025-09-30
2022-09-30  2025-09-30
2023-10-17  2025-09-30
2023-10-17  2025-09-30
2016-03-26  2025-09-30







 (7)
 
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Summary of all available data for this site
Instantaneous-data availability statement

Discharge, cubic feet per second
Most recent instantaneous value: 139 10-01-2025   00:10 PDT
Graph of Discharge, cubic feet per second

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Daily discharge, cubic feet per second -- statistics for Oct 1 based on 86 water years of record more
Min
(1968)		 25th
percen-
tile		 Median Mean Most Recent
Instantaneous
Value Oct 1		 75th
percen-
tile		 Max
(2014)
1.20 22 91 106 139 154 717