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Peak Streamflow for Iowa
Boating safety tips are available from the U.S. Coast Guard.
NOTE: Station Numbers for Iowa precipitation gages have changed (see list).
Table |
Graph |
Tab-separated file |
peakfq (watstore) format |
Reselect output format |
Water Year |
Date | Gage Height (feet) |
Stream- flow (cfs) |
---|---|---|---|
1851 | 1851-06 | 20.005,Bd | 65,0002,7,Bd |
1903 | 1903-05-31 | 16.85 | 53,600 |
1904 | 1904-03-26 | 6.45 | 11,800 |
1905 | 1905-03-23 | 9.05 | 23,000 |
1906 | 1906-03-30 | 17.60 | 55,700 |
1907 | 1907-07-20 | 8.50 | 19,800 |
1908 | 1908-05-30 | 8.80 | 21,000 |
1909 | 1909-03-30 | 9.10 | 22,100 |
1910 | 1910-03-14 | 9.60 | 24,100 |
1911 | 1911-02-16 | 7.10 | 14,300 |
1912 | 1912-04-01 | 17.20 | 54,100 |
1913 | 1913-03-18 | 9.20 | 22,500 |
1914 | 1914-06-19 | 7.80 | 17,000 |
1915 | 1915-03-28 | 12.00 | 33,600 |
1916 | 1916-03-30 | 10.00 | 25,700 |
1917 | 1917-03-26 | 17.40 | 54,900 |
1918 | 1918-06-07 | 11.00 | 28,200 |
1919 | 1919-03-20 | 11.40 | 29,700 |
1920 | 1920-03-30 | 7.60 | 14,800 |
1921 | 1921-06-01 | 8.40 | 17,900 |
1922 | 1922-02-27 | 9.10 | 21,000 |
1923 | 1923-04-04 | 7.80 | 16,000 |
1924 | 1924-08-22 | 10.54 | 26,300 |
1925 | 1925-06-18 | 7.00 | 12,800 |
1926 | 1926-09-21 | 6.70 | 11,500 |
1927 | 1927-05-25 | 6.77 | 11,800 |
1928 | 1928-08-29 | 11.05 | 29,200 |
1929 | 1929-03-18 | 20.00 | 64,000 |
1930 | 1930-02-24 | 6.90 | 12,200 |
1931 | 1931-09-26 | 4.10 | 3,270 |
1932 | 1932-04-02 | 8.73 | 19,100 |
1933 | 1933-04-04 | 18.60 | 58,400 |
1934 | 1934-04-09 | 5.55 | 8,620 |
1935 | 1935-03-08 | 10.38 | 26,900 |
1936 | 1936-03-15 | 9.45 | 22,700 |
1937 | 1937-03-09 | 13.61 | 40,700 |
1938 | 1938-09-21 | 6.93 | 12,900 |
1939 | 1939-03-18 | 8.67 | 19,700 |
1940 | 1940-04-04 | 4.86 | 5,540 |
1941 | 1941-03-21 | 8.02 | 17,100 |
1942 | 1942-08-03 | 12.60 | 33,900 |
1943 | 1943-03-31 | 7.91 | 15,800 |
1944 | 1944-06-18 | 11.43 | 29,100 |
1945 | 1945-03-19 | 17.09 | 52,300 |
1946 | 1946-01-09 | 10.80 | 27,100 |
1947 | 1947-06-16 | 18.23 | 56,200 |
1948 | 1948-03-03 | 12.82 | 34,500 |
1949 | 1949-03-07 | 11.75 | 30,800 |
1950 | 1950-03-11 | 12.45 | 33,000 |
1951 | 1951-04-11 | 17.22 | 54,100 |
1952 | 1952-04-05 | 10.40 | 27,000 |
1953 | 1953-08-10 | 7.29 | 15,200 |
1954 | 1954-06-26 | 14.02 | 41,400 |
1955 | 1955-03-05 | 5.67 | 8,100 |
1956 | 1956-04-06 | 4.69 | 5,400 |
1957 | 1957-06-20 | 6.00 | 9,900 |
1958 | 1958-06-13 | 4.58 | 5,240 |
1959 | 1959-03-30 | 9.77 | 25,800 |
1960 | 1960-04-02 | 16.75 | 55,100 |
1961 | 1961-03-31 | 19.66 | 73,000 |
1962 | 1962-04-02 | 15.15 | 50,000 |
1963 | 1963-03-19 | 7.26 | 15,600 |
1964 | 1964-05-08 | 4.43 | 4,270 |
1965 | 1965-04-10 | 18.51 | 66,800 |
1966 | 1965-10-05 | 10.51 | 29,200 |
1967 | 1967-06-16 | 7.41 | 16,000 |
1968 | 1968-08-07 | 8.79 | 22,200 |
1969 | 1969-07-12 | 16.58 | 54,500 |
1970 | 1970-03-04 | 7.002 | 14,300 |
1971 | 1971-04-05 | 9.642 | 27,400 |
1972 | 1972-05-08 | 6.36 | 12,400 |
1973 | 1973-04-21 | 14.21 | 45,500 |
1974 | 1974-06-14 | 12.56 | 38,200 |
1975 | 1975-03-24 | 10.84 | 32,800 |
1976 | 1976-04-22 | 7.42 | 16,100 |
1977 | 1977-09-18 | 7.06 | 14,600 |
1978 | 1978-03-23 | 8.34 | 19,700 |
1979 | 1979-03-20 | 12.17 | 37,600 |
1980 | 1980-08-16 | 8.90 | 21,800 |
1981 | 1981-06-29 | 7.25 | 15,400 |
1982 | 1982-03-23 | 11.21 | 32,200 |
1983 | 1983-04-19 | 11.09 | 31,700 |
1984 | 1984-02-21 | 11.84 | 35,000 |
1985 | 1985-02-22 | 8.231 | 18,0002 |
1986 | 1986-03-23 | 12.89 | 39,600 |
1987 | 1986-10-18 | 8.99 | 22,700 |
1988 | 1988-03-08 | 5.92 | 9,760 |
1989 | 1989-03-16 | 5.53 | 8,130 |
1990 | 1990-08-02 | 14.57 | 46,300 |
1991 | 1991-05-23 | 15.26 | 46,100 |
1992 | 1991-12-13 | 11.61 | 32,100 |
1993 | 1993-04-04 | 19.27 | 71,000 |
1994 | 1994-03-08 | 10.43 | 22,500 |
1995 | 1995-04-27 | 8.30 | 16,400 |
1996 | 1996-06-06 | 7.61 | 13,700 |
1997 | 1997-03-16 | 10.81 | 24,100 |
1998 | 1998-06-26 | 11.31 | 28,400 |
1999 | 1999-07-25 | 18.31 | 62,300 |
2000 | 2000-07-15 | 11.18 | 27,700 |
2001 | 2001-04-17 | 14.04 | 42,000 |
2002 | 2002-06-05 | 7.02 | 13,000 |
2003 | 2003-05-16 | 8.82 | 19,700 |
2004 | 2004-05-27 | 18.30 | 62,500 |
2005 | 2005-07-03 | 10.43 | 26,200 |
2006 | 2006-04-08 | 8.10 | 17,000 |
2007 | 2007-08-27 | 11.06 | 28,800 |
2008 | 2008-06-13 | 31.12 | 140,000 |
2009 | 2009-08-28 | 12.17 | 33,900 |
2010 | 2010-03-17 | 15.06 | 50,300 |
2011 | 2011-03-28 | 11.46 | 31,700 |
2012 | 2012-05-10 | 6.12 | 9,950 |
2013 | 2013-06-02 | 18.23 | 63,700 |
2014 | 2014-06-24 | 16.77 | 56,200 |
2015 | 2015-06-28 | 10.30 | 26,700 |
2016 | 2016-09-27 | 21.97 | 81,600 |
2017 | 2017-02-26 | 10.092 | 25,700 |
2018 | 2018-09-26 | 17.94 | 61,900 |
2019 | 2019-03-19 | 18.32 | 61,800 |
2020 | 2020-06-25 | 15.71 | 48,100 |
2021 | 2021-09-03 | 9.63 | 23,700 |
2022 | 2022-05-04 | 8.05 | 17,400 |
2023 | 2023-03-04 | 10.33 |