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Peak Streamflow for the Nation

USGS 05389500 Mississippi River at McGregor, IA

Clayton County, Iowa
Hydrologic Unit Code 07060001
Latitude  43°01'37.3", Longitude  91°10'21" NAD27
Drainage area 67,500  square miles
Gage datum 604.50 feet above NAVD88
Output formats
Table
Graph
Tab-separated file
peakfq (watstore) format
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Water
Year		 Date Gage
Height
(feet)		 Stream-
flow
(cfs)
1880 1880-06-22 21.00 196,0007
1937 1937-05-06   54,7001,6
1938 1938-05-27   101,0001,6
1939 1939-04-06   96,9001,6
1940 1940-04-19   52,1001,6
1941 1941-04-20   103,0001,6
1942 1942-06-07   114,0001,6
1943 1943-06-28   125,0001,6
1944 1944-06-24   122,0001,6
1945 1945-03-29   128,0001,6
1946 1946-03-29   101,0001,6
1947 1947-04-21   85,5001,6
1948 1948-04-11   84,0001,6
1949 1949-04-04   73,1001,6
1950 1950-05-17   123,0001,6
1951 1951-04-22   186,0001,6
1952 1952-04-22   198,0001,6
1953 1953-07-03   86,2001,6
1954 1954-05-09   166,0001,6
1955 1955-04-14   73,7001,6
1956 1956-04-15   105,0001,6
1957 1957-07-08   95,8001,6
1958 1958-04-14   55,8001,6
1959 1959-04-03   72,3001,6
1960 1960-06-04   83,1001,6
1961 1961-03-29   114,0001,6
1962 1962-04-18   104,0001,6
1963 1963-04-01   72,0001,6
1964 1964-05-19 11.56 75,6001,6
1965 1965-04-24 25.38 276,0001,6
1966 1966-03-29   112,0001,6
1967 1967-04-09   170,0006
1968 1968-07-04 15.17 97,9006
1969 1969-04-22 21.58 215,0001,6
1970 1970-06-04 12.08 72,1001,6
1971 1971-04-20   138,0001,6
1972 1972-04-29   116,0001,6
1973 1973-03-22   151,0001,6
1974 1974-06-22   104,0001,6
1975 1975-05-04   183,0001,6
1976 1976-04-08 17.21 125,0001,6
1977 1977-09-30 8.61 42,0001,6
1978 1978-07-09   104,0001,6
1979 1979-04-30   133,0001,6
1980 1980-09-26   87,4001,6
1981 1981-05-12   80,7001,6
1982 1982-04-26 17.96 139,0001,6
1983 1983-03-16   145,0001,6
1984 1984-06-25   117,0001,6
1985 1985-04-04   110,0001,6
1986 1986-04-11   168,0001,6
1987 1986-10-01   158,0001,6
1988 1988-04-02   57,2001,6
1989 1989-04-02   103,0001,6
1990 1990-03-20   98,8001,6
1991 1991-05-18   104,0001,6
1992 1992-03-15   106,0001,6
1993 1993-06-29 21.97 189,0006
1994 1994-05-07 15.192 115,0006
1995 1995-04-28 13.462 99,6006
1996 1996-04-28 18.50 143,0006
1997 1997-04-15 21.38 201,0006
1998 1998-04-08 17.252 126,0006
1999 1999-05-27 14.992 111,0006
2000 2000-06-08 13.25 78,4006
2001 2001-04-21 23.75 248,0006
2002 2002-04-22 17.17 121,0006
2003 2003-05-20 16.88 115,0006
2004 2004-06-16 16.922 115,0006
2005 2005-04-07 13.952 97,1006
2008 2008-04-28 16.802 105,0006
2009 2009-04-06 12.632 87,2006
2010 2010-03-29 14.762 111,0006
2011 2011-04-17 21.322 182,0006
2012 2012-06-08 13.132 93,8006
2013 2013-05-11 16.222 117,0006
2023 2023-04-27 22.91  
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  Peak Gage-Height Qualification Codes.
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  Peak Streamflow Qualification Codes.