USGS Water-Year Summary 2019
07325000 WASHITA RIVER NEAR CLINTON, OK
LOCATION - Lat 35°31'51", long 98°58'00" referenced to North American Datum of 1927, in SW 1/4 NE 1/4 sec.11, T.12 N., R.17 W., Custer County, OK, Hydrologic Unit 11130302, on downstream side of bridge on U.S. Highway 183, 0.5 mi north of Clinton, 0.8 mi upstream from Beaver Creek, 4.8 mi downstream from Barnitz Creek, and at mile 447.4.
DRAINAGE AREA - 1,961 mi² of which 12 mi² probably is noncontributing. from automated delineation using 10-meter National Elevation Dataset digital elevation model data dated 10/01/2006 and Watershed Boundary Dataset dated 10/01/2006, using Albers Equal-Area Projection, North American Datum 1983.
- WSP 1221: Drainage area. WDR 2012: Drainage area.
PERIOD OF RECORD - October 1935 to current year. Monthly discharge only for some periods, published in WSP 1311.
GAGE - Water-stage recorder. Datum of gage is 1,467.44 ft above NGVD of 1929. See WSP 1920 for history of changes prior to Mar. 19, 1941.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of Apr. 3-4, 1934, reached a stage of 33.9 ft, from floodmarks.
EXTREMES FOR PERIOD OF RECORD - Maximum gage height for period of record, 31.09 ft, May 16, 1951. Maximum discharge for period of record, 66,800 ft³/s, May 16, 1951, from rating curve extended above 22,800 ft³/s, by contracted-opening measurement of peak flow. Minimum daily discharge of no flow has occurred multiple times.
AVERAGE DISCHARGE FOR PERIOD PRIOR TO REGULATION - 146 ft³/s, water years 1936-60.