USGS Water-Year Summary 2018
13334300 SNAKE RIVER NEAR ANATONE, WA
LOCATION - Lat 46°05'50", long 116°58'36" referenced to North American Datum of 1927, in SE 1/4 NE 1/4 sec.12, T.7 N., R.46 E., Asotin County, WA, Hydrologic Unit 17060103, on left bank 1.2 mi downstream from Grande Ronde River, 7.8 mi east of Anatone, 22 mi south of Clarkston, and at mile 167.2.
DRAINAGE AREA - 92,960 mi².
- WDR WA-76-1: 1974 and 1975.
PERIOD OF RECORD - July 1958 to current year.
GAGE - Water-stage recorder. Datum of gage is 806.68 ft above NGVD of 1929. Prior to Aug. 3, 2010 previously reported as Datum of gage is 806.78 ft above NGVD.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 195,000 ft³/s, June 18, 1974, gage height, 24.45 ft; minimum discharge, 6,010 ft³/s, Sept. 2, 1958, gage height, 1.29 ft.
PERIOD OF RECORD - WATER TEMPERATURE: Water years 1973 to May 1984, October 1985 to current year.
TOTAL DISSOLVED GAS: April 2009 to current year (seasonal records only). Seasonal records from April 2003 to September 2008, available in files of the U.S. Geological Survey Kennewick Field Office (U.S. Army Corps of Engineers Walla Walla has data for April 1999 to September 2002)
PERIOD OF DAILY RECORD - WATER TEMPERATURE: October 1959 to May 1984, April 1986 to current year.
TOTAL DISSOLVED GAS: April 2009 to current year (seasonal records only).
INSTRUMENTATION - Temperature recorder since October 1959. Total dissolved gas monitor with a 1-hour logging interval since 1999.
EXTREMES FOR PERIOD OF DAILY RECORD - WATER TEMPERATURE: Maximum, 25.5°C (rounded), Aug. 26, 28, 1991, Aug. 2-4, 1994, Aug. 14, 1998; minimum, 0.0°C, several days during some winter months.
TOTAL DISSOLVED GAS: Maximum recorded, 112 percent saturation, June 2-3 and 5-7, 2017; minimum, 96 percent saturation Aug. 22, 23, 26, 27, 2010, but may have been higher or lower during periods of missing record.