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Peak Streamflow for the Nation

USGS 06600100 Floyd River at Alton, IA

Sioux County, Iowa
Hydrologic Unit Code 10230002
Latitude  42°58'58.1", Longitude  96°00'01.2" NAD83
Drainage area 268  square miles
Gage datum 1,270.17 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)
1953 1953-06   45,5002,7,Bd
1956 1956-07-11 9.45 287
1957 1957-07-04 10.54 440
1958 1958-06-03 9.82 336
1959 1959-06-01 12.77 1,130
1960 1960-03-28 17.27 4,150
1961 1961-03-03 15.731 2,1002
1962 1962-03-28 18.35 12,200
1963 1963-03-17 8.801 1502
1964 1964-07-11 10.89 565
1965 1965-04-01 17.36 5,340
1966 1966-02-09 16.62 3,600
1967 1967-06-16 13.75 1,400
1968 1968-07-20 8.61 198
1969 1969-04-04 17.78 8,510
1970 1970-03-03 15.47 2,280
1971 1971-02-19 17.171 4,0002
1972 1972-03-12 15.59 2,620
1973 1973-03-03 15.95 2,750
1974 1974-06-22 14.00 1,500
1975 1975-06-05 16.55 3,490
1976 1976-03-16 9.16 427
1977 1977-07-24 7.46 148
1978 1978-03-19 13.37 1,450
1979 1979-03-23 18.40 14,000
1980 1980-06-06 12.68 1,230
1981 1981-06-15 14.17 1,440
1982 1982-07-06 16.39 3,270
1983 1983-06-20 18.54 16,300
1984 1984-06-13 16.58 4,990
1985 1985-04-23 16.93 5,660
1986 1986-03-19 14.38 2,320
1987 1987-03-24 12.35 1,610
1988 1988-08-22 9.482 775
1989 1989-03-11 8.752 596
1990 1990-06-28 14.05 2,240
1991 1991-04-14 7.71 357
1992 1992-07-10 10.94 1,180
1993 1993-03-28 17.46 6,580
1994 1994-06-13 17.34 6,220
1995 1995-08-08 15.05 2,740
1996 1996-06-20 12.99 1,900
1997 1997-03-13 15.671 1,9202
1998 1998-04-16 7.48 365
1999 1999-06-10 8.34 532
2000 2000-06-15 6.83 221
2001 2001-04-23 12.84 1,850
2002 2002-06-12 7.42 333
2003 2003-07-09 11.86 1,520
2004 2004-09-17 11.092 1,280
2005 2005-05-14 9.98 915
2006 2006-05-02 10.34 1,050
2007 2007-03-13 17.10 5,950
2008 2008-06-13 12.07 1,600
2009 2009-02-11 14.17 2,320
2010 2010-07-23 17.97 8,580
2011 2011-02-19 13.54 2,080
2012 2012-03-08 11.26 1,300
2013 2013-05-27 19.19 13,800
2014 2014-06-18 18.04 8,830
2015 2015-05-17 6.242 149
2016 2016-09-18 11.07 1,360
2017 2017-02-13 11.80 1,580
2018 2018-09-20 21.96 21,700
2019 2019-03-14 20.87 24,900
2020 2020-05-27 8.82 832
2021 2021-07-14 6.162 161
2022 2022-06-25 6.43 155
2023 2023-05-13 9.092,5 945
2024 2024-06-22 26.81 41,000
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  Peak Gage-Height Qualification Codes.
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  Peak Streamflow Qualification Codes.