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Peak Streamflow for the Nation

USGS 09402500 COLORADO RIVER NEAR GRAND CANYON, AZ

Coconino County, Arizona
Hydrologic Unit Code 15010001
Latitude  36°06'05", Longitude 112°05'08" NAD27
Drainage area 141,600  square miles
Contributing drainage area 137,641  square miles
Gage datum 2,418.70 feet above NGVD29
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Water
Year		 Date Gage
Height
(feet)		 Stream-
flow
(cfs)
1884 1884-07-08   300,0002,7
1921 1921-06-19 37.50 220,000
1922 1922-06-01   115,0002
1923 1923-09-19 28.50 112,000
1924 1924-06-18 22.40 74,000
1925 1925-06-03 18.75 53,700
1926 1926-05-29 24.27 85,600
1927 1927-07-02 29.25 127,000
1928 1928-06-03 27.85 115,000
1929 1929-05-29 27.50 111,000
1930 1930-06-04 21.60 71,000
1931 1931-05-22 14.36 34,600
1932 1932-05-26 26.10 102,000
1933 1933-06-05 23.41 81,500
1934 1934-05-17 12.32 25,500
1935 1935-06-19 26.82 105,000
1936 1936-05-24 22.64 76,300
1937 1937-05-21 23.90 85,300
1938 1938-06-08 26.38 100,000
1939 1939-05-26 18.07 49,000
1940 1940-05-18 17.66 46,800
1941 1941-05-17 28.86 120,000
1942 1942-05-31 25.18 91,800
1943 1943-06-06 21.39 66,800
1944 1944-05-20 25.10 93,400
1945 1945-05-17 21.40 63,300
1946 1946-06-14 18.65 50,100
1947 1947-05-14 23.10 80,100
1948 1948-05-26 24.90 89,800
1949 1949-06-22 27.95 112,000
1950 1950-06-06 20.55 58,400
1951 1951-06-01 21.00 63,700
1952 1952-06-12 29.05 122,000
1953 1953-06-17 21.80 68,500
1954 1954-05-27 15.05 32,800
1955 1955-06-14 16.90 40,400
1956 1956-06-06 21.60 67,200
1957 1957-06-13 29.10 125,000
1958 1958-06-02 26.97 108,000
1959 1959-06-19 16.11 38,300
1960 1960-06-10 17.95 46,300
1961 1961-06-06 16.38 39,800
1962 1962-05-17 23.80 85,600
1963 1962-10-22 11.26 20,7006
1964 1964-04-29 10.81 19,7006
1965 1965-06-15 19.98 58,4006
1966 1966-05-04 11.33 21,3006
1967 1967-09-09 16.17 23,9006
1968 1968-07-20 16.60 26,8006
1969 1969-09-12 17.60 30,8006
1970 1970-08-27 16.33 27,6006
1971 1971-08-24 18.05 33,4006
1972 1972-05-26 16.95 29,5006
1973 1973-04-19 18.47 38,3006
1974 1974-08-21 15.56 28,2006
1975 1975-07-30 15.72 28,9006
1976 1976-05-20 15.40 27,7006
1977 1977-08-19 16.53 32,1006
1978 1978-09-09 15.87 29,4006
1979 1978-12-23 18.14 38,6006
1980 1980-06-24 19.60 45,0006
1981 1981-07-30 14.71 25,4006
1982 1982-08-28 15.15 27,9006
1983 1983-06-29 26.26 96,2006
1984 1984-08-13 18.31 47,6006
1985 1985-06-02 18.25 47,4006
1986 1986-05-31 19.15 53,5006
1987 1987-01-31 14.67 31,6006
1988 1988-07-29 13.16 25,5006
1989 1989-08-19 14.81 31,3006
1990 1990-08-01 13.77 28,2006
1991 1991-06-18 13.89 29,0006
1992 1992-07-24 11.18 19,9006
1993 1993-01-13 15.44 34,1006
1994 1994-08-18 12.03 22,0006
1995 1995-09-09 14.03 25,4006
1996 1996-03-31 18.98 47,9006
1997 1997-09-16 14.87 31,5006
1998 1997-11-06 15.39 31,9006
1999 1999-08-31 14.29 25,9006
2000 2000-09-07 15.85 32,8006
2001 2001-03-20 11.72 19,4006
2002 2002-09-11 12.37 21,4006
2003 2003-03-20 12.10 21,0006
2004 2004-07-15 12.19 21,3006
2005 2004-11-23 18.22 43,4006
2006 2006-08-05 11.94 20,2006
2007 2006-10-06 12.00 20,4006
2008 2008-03-07 18.42 45,3006
2009 2009-07-21 10.68 17,7006
2010 2010-08-07 12.14 21,4006
2011 2011-07-09 13.78 26,7006
2012 2011-11-21 12.30 21,5006
2013 2012-11-20 18.69 46,7006
2014 2013-11-15 16.90 38,1006
2015 2014-11-12 17.08 38,9006
2016 2016-08-06 11.91 20,4006
2017 2016-11-08 17.20 38,4006
2018 2018-08-21 12.00 20,7006
2019 2018-11-07 17.76 40,3006
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  Peak Streamflow Qualification Codes.