USGS Water-Year Summary 2024
453439122223900 COLUMBIA RIVER, RIGHT BANK, AT WASHOUGAL, WA
LOCATION - Lat 45°34'39", long 122°22'39" referenced to North American Datum of 1927, Clark County, WA, Hydrologic Unit 17080001, on dock at Camas-Washougal Marina, on right bank 25 mi downstream from Bonneville Dam, at river mile 121.7.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - BAROMETRIC PRESSURE: March 1996 to current year (seasonal records only).
INSTRUMENTATION - Meteorological monitor.
EXTREMES FOR PERIOD OF RECORD - BAROMETRIC PRESSURE: Maximum, 786 mmHg Apr. 13, 1999; minimum, 742 mmHg Apr. 7, 2017.
WATER-QUALITY RECORDS
PERIOD OF RECORD -
WATER TEMPERATURE: March 1996 to current year (seasonal records only).
TOTAL DISSOLVED GAS: March 1996 to current year (seasonal record only).
INSTRUMENTATION - Water-quality monitor.
EXTREMES FOR PERIOD OF DAILY RECORD -
WATER TEMPERATURE: Maximum, 24.1°C Aug. 1, 3, 2009; minimum, 3.3°C Feb. 27, 2006.
TOTAL DISSOLVED GAS: Maximum, 1070 mmHg June 1, 1996, June 9, 11, 1997; minimum, 744 mmHg Sept. 15, 1996.