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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) |
---|---|---|---|
1891 | 1891-06-23 | 29.34 | |
1919 | 1919-06-12 | 19.60 | 10,700 |
1920 | 1920-03-13 | 17.40 | 8,920 |
1921 | 1921-05-27 | 11.70 | 3,960 |
1922 | 1922-03-13 | 9.00 | 2,520 |
1923 | 1923-03-26 | 10.602 | 2,000 |
1924 | 1924-06-29 | 13.90 | 4,950 |
1925 | 1925-06-04 | 9.30 | 2,190 |
1929 | 1929-03-14 | 16.30 | 6,250 |
1930 | 1930-06-13 | 11.206 | 2,990 |
1931 | 1931-07-17 | 10.30 | 2,540 |
1932 | 1932-04-21 | 17.70 | 6,560 |
1937 | 1937-06-19 | 17.00 | 5,950 |
1938 | 1938-09-21 | 18.90 | 7,250 |
1939 | 1939-03-12 | 15.201 | 2,2002 |
1940 | 1940-08-26 | 16.20 | 4,730 |
1941 | 1941-09-15 | 17.00 | 4,740 |
1942 | 1942-06-19 | 15.30 | 3,800 |
1943 | 1943-07-20 | 18.402 | 6,600 |
1944 | 1944-06-12 | 21.10 | 13,000 |
1945 | 1945-08-05 | 21.90 | 14,800 |
1946 | 1946-02-05 | 17.70 | 5,870 |
1947 | 1947-05-01 | 20.30 | 10,400 |
1948 | 1948-02-27 | 18.70 | 7,770 |
1949 | 1949-03-06 | 16.301 | 4,1502 |
1950 | 1950-06-18 | 18.70 | 6,860 |
1951 | 1951-04-07 | 22.58 | 17,900 |
1952 | 1952-04-04 | 20.37 | 10,400 |
1953 | 1953-06-12 | 22.09 | 17,500 |
1954 | 1954-06-21 | 23.36 | 20,900 |
1955 | 1955-07-10 | 15.60 | 4,280 |
1956 | 1956-05-31 | 7.05 | 452 |
1957 | 1957-06-22 | 16.76 | 5,700 |
1958 | 1958-06-03 | 11.85 | 2,060 |
1959 | 1959-05-31 | 19.30 | 8,280 |
1960 | 1960-03-29 | 22.57 | 16,000 |
1961 | 1961-03-29 | 22.32 | 16,400 |
1962 | 1962-03-30 | 23.14 | 19,800 |
1963 | 1963-06-02 | 21.54 | 13,500 |
1964 | 1964-05-06 | 16.15 | 4,720 |
1965 | 1965-04-07 | 25.86 | 29,800 |
1966 | 1966-02-11 | 17.62 | 6,040 |
1967 | 1967-06-14 | 18.71 | 7,390 |
1968 | 1968-09-24 | 11.91 | 2,040 |
1969 | 1969-04-08 | 23.61 | 21,000 |
1970 | 1970-03-05 | 15.38 | 4,400 |
1971 | 1971-02-20 | 22.23 | 16,000 |
1972 | 1972-07-17 | 14.462 | 4,130 |
1973 | 1973-03-03 | 18.40 | 7,060 |
1974 | 1974-06-24 | 12.85 | 3,320 |
1975 | 1975-05-02 | 20.45 | 10,500 |
1976 | 1976-03-13 | 10.50 | 2,100 |
1977 | 1977-06-23 | 15.06 | 4,840 |
1978 | 1978-06-17 | 18.81 | 8,450 |
1979 | 1979-03-24 | 22.13 | 13,100 |
1980 | 1979-11-08 | 14.38 | 4,480 |
1981 | 1981-06-15 | 11.84 | 2,810 |
1982 | 1982-07-16 | 19.26 | 9,100 |
1983 | 1983-06-22 | 22.06 | 16,400 |
1984 | 1984-06-18 | 23.28 | 20,400 |
1985 | 1985-04-25 | 18.38 | 9,640 |
1986 | 1986-03-20 | 18.10 | 8,910 |
1987 | 1987-07-19 | 14.16 | 5,420 |
1988 | 1988-04-07 | 9.282 | 2,090 |
1989 | 1989-03-12 | 10.832 | 2,930 |
1990 | 1990-06-16 | 13.44 | 4,880 |
1991 | 1991-06-15 | 15.58 | 7,240 |
1992 | 1992-07-13 | 16.54 | 8,230 |
1993 | 1993-07-18 | 23.82 | 22,600 |
1994 | 1994-06-29 | 17.11 | 8,360 |
1995 | 1995-05-19 | 13.96 | 5,870 |
1996 | 1996-06-21 | 19.84 | 11,300 |
1997 | 1997-03-12 | 13.322 | 5,760 |
1998 | 1998-06-16 | 9.85 | 3,120 |
1999 | 1999-06-17 | 12.66 | 5,480 |
2000 | 2000-06-18 | 6.59 | 1,220 |
2001 | 2001-04-13 | 14.29 | 7,370 |
2002 | 2002-06-16 | 7.93 | 2,160 |
2003 | 2003-06-24 | 15.51 | 8,320 |
2004 | 2004-09-24 | 17.94 | 11,100 |
2005 | 2005-05-20 | 12.61 | 6,100 |
2006 | 2006-04-09 | 14.12 | 7,240 |
2007 | 2007-05-08 | 17.39 | 14,700 |
2008 | 2008-06-12 | 14.07 | 7,740 |
2009 | 2009-02-10 | 12.421 | 5,3102 |
2010 | 2010-06-28 | 23.79 | 27,300 |
2011 | 2011-07-21 | 20.68 | 13,200 |
2012 | 2012-05-29 | 12.51 | 4,560 |
2013 | 2013-05-28 | 25.35 | 25,000 |
2014 | 2014-06-20 | 24.39 | 21,700 |
2015 | 2015-08-17 | 15.43 | 6,910 |
2016 | 2016-05-04 | 17.78 | 9,330 |
2017 | 2017-05-27 | 13.66 | 5,670 |
2018 | 2018-09-24 | 24.31 | 23,000 |
2019 | 2019-03-15 | 26.45 | 30,600 |
2020 | 2020-05-28 | 13.64 | 6,900 |
2021 | 2021-09-03 | 5.912 | 949 |
2022 | 2022-06-11 | 8.55 | 2,600 |
2023 | 2023-02-28 | 12.91 | 6,400 |