USGS Water-Year Summary 2024
453845121564001 COLUMBIA RIVER AT CASCADE ISLAND, WA
LOCATION - Lat 45°38'45", long 121°56'40" referenced to North American Datum of 1927, Skamania County, WA, Hydrologic Unit 17080001, on right bank approximately 0.25 mi downstream from Bonneville Dam and at mile 145.9.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - BAROMETRIC PRESSURE: April 2004 to current year (seasonal records only).
INSTRUMENTATION - Meteorological monitor.
EXTREMES FOR PERIOD OF RECORD - BAROMETRIC PRESSURE: Maximum, 778 mmHg Mar. 28, 2007, Mar. 2, 2008; minimum, 741 mmHg Apr. 7, 2017.
WATER-QUALITY RECORDS
PERIOD OF RECORD -
WATER TEMPERATURE: April 2004 to current year (seasonal records only).
TOTAL DISSOLVED GAS: April 2004 to current year (seasonal records only).
INSTRUMENTATION - Water-quality monitor.
EXTREMES FOR PERIOD OF DAILY RECORD -
WATER TEMPERATURE: Maximum, 23.7°C Aug. 2, 2009; minimum, 3.2°C Mar. 14, 15, 2019.
TOTAL DISSOLVED GAS: Maximum, 1010 mmHg Mar. 30, 2017; minimum, 771 mmHg Feb. 25, 2007.