Highest listed crest 25.93 ft May 28, 2013; 22,000 cubic feet per second
Flood stage 16.0 ft Major flooding from 21.0 ft
Crests at major 27 5th of 203 gauges in Iowa
Most recent flood crest July 4, 2024 17.29 ft, minor flooding Listed crests at the North Skunk River near Sigourney, 1944 to 2024 5 10 15 20 25 30 ft Flood stage 16.0 ft Major 21.0 ft May 1, 1944: 22.80 ft, major flooding; 14,500 cubic feet per second Jan 7, 1946: 22.57 ft, major flooding; 13,900 cubic feet per second Jun 15, 1947: 21.80 ft, major flooding; 12,000 cubic feet per second Mar 1, 1948: 19.40 ft, moderate flooding; 6,610 cubic feet per second Mar 19, 1948: 19.50 ft, moderate flooding; 7,660 cubic feet per second Mar 8, 1949: 19.65 ft, moderate flooding; 6,920 cubic feet per second Mar 24, 1949: 19.53 ft, moderate flooding; 6,760 cubic feet per second Mar 8, 1950: 18.84 ft, moderate flooding; 5,810 cubic feet per second May 29, 1951: 16.40 ft, minor flooding; 3,820 cubic feet per second Jul 3, 1951: 19.92 ft, moderate flooding; 7,460 cubic feet per second Mar 13, 1952: 20.16 ft, moderate flooding; 7,660 cubic feet per second Feb 24, 1953: 16.43 ft, minor flooding; 3,820 cubic feet per second Apr 30, 1954: 11.65 ft, below flood stage; 1,830 cubic feet per second Apr 24, 1955: 18.18 ft, moderate flooding; 5,180 cubic feet per second Jun 20, 1956: 7.98 ft, below flood stage; 880 cubic feet per second Jul 8, 1957: 15.81 ft, action stage; 3,490 cubic feet per second Feb 27, 1958: 13.60 ft, below flood stage Mar 22, 1959: 19.83 ft, moderate flooding; 7,270 cubic feet per second May 30, 1959: 17.37 ft, minor flooding; 4,500 cubic feet per second Jan 15, 1960: 21.56 ft, major flooding; 11,500 cubic feet per second Mar 31, 1960: 25.33 ft, major flooding; 27,500 cubic feet per second May 9, 1960: 18.76 ft, moderate flooding; 5,810 cubic feet per second Jul 13, 1960: 17.29 ft, minor flooding; 4,420 cubic feet per second Feb 22, 1961: 17.80 ft, minor flooding; 4,820 cubic feet per second Mar 8, 1961: 18.73 ft, moderate flooding; 5,700 cubic feet per second Mar 16, 1961: 17.50 ft, minor flooding; 4,580 cubic feet per second Sep 16, 1961: 18.79 ft, moderate flooding; 5,810 cubic feet per second Nov 3, 1961: 18.84 ft, moderate flooding; 5,810 cubic feet per second Nov 16, 1961: 19.33 ft, moderate flooding; 6,460 cubic feet per second Mar 22, 1962: 20.43 ft, moderate flooding; 8,520 cubic feet per second May 29, 1962: 18.94 ft, moderate flooding; 5,930 cubic feet per second Mar 5, 1963: 17.15 ft, minor flooding Aug 7, 1963: 16.36 ft, minor flooding; 3,820 cubic feet per second Jun 23, 1964: 15.40 ft, action stage; 3,290 cubic feet per second Apr 8, 1965: 17.55 ft, minor flooding; 4,620 cubic feet per second Apr 27, 1965: 17.05 ft, minor flooding; 4,240 cubic feet per second Jul 7, 1965: 17.95 ft, minor flooding; 4,960 cubic feet per second Sep 21, 1965: 22.57 ft, major flooding; 11,200 cubic feet per second May 17, 1966: 19.40 ft, moderate flooding; 5,810 cubic feet per second May 24, 1966: 17.70 ft, minor flooding; 4,280 cubic feet per second Jun 14, 1966: 23.85 ft, major flooding; 15,600 cubic feet per second Jun 15, 1967: 13.80 ft, below flood stage; 2,450 cubic feet per second Apr 25, 1968: 9.87 ft, below flood stage; 1,230 cubic feet per second Jul 4, 1969: 16.84 ft, minor flooding; 4,100 cubic feet per second Jul 11, 1969: 19.61 ft, moderate flooding; 6,940 cubic feet per second Jul 19, 1969: 20.09 ft, moderate flooding; 7,840 cubic feet per second Feb 23, 1970: 20.07 ft, moderate flooding Mar 5, 1970: 20.15 ft, moderate flooding; 7,070 cubic feet per second Aug 6, 1970: 21.30 ft, major flooding; 8,420 cubic feet per second Sep 17, 1970: 19.77 ft, moderate flooding; 6,480 cubic feet per second Oct 13, 1970: 18.32 ft, moderate flooding; 4,720 cubic feet per second Feb 23, 1971: 20.07 ft, moderate flooding; 4,100 cubic feet per second May 8, 1972: 16.03 ft, minor flooding; 3,360 cubic feet per second Feb 4, 1973: 20.33 ft, moderate flooding; 7,490 cubic feet per second Apr 18, 1973: 20.17 ft, moderate flooding; 7,210 cubic feet per second May 2, 1973: 17.13 ft, minor flooding; 4,270 cubic feet per second May 29, 1973: 19.33 ft, moderate flooding; 6,030 cubic feet per second Jan 31, 1974: 17.57 ft, minor flooding; 4,460 cubic feet per second Apr 30, 1974: 22.04 ft, major flooding; 12,100 cubic feet per second May 19, 1974: 22.51 ft, major flooding; 14,000 cubic feet per second May 31, 1974: 19.63 ft, moderate flooding; 6,380 cubic feet per second Jun 12, 1974: 20.41 ft, moderate flooding; 7,640 cubic feet per second Mar 22, 1975: 17.40 ft, minor flooding; 4,430 cubic feet per second Apr 25, 1976: 22.80 ft, major flooding; 16,800 cubic feet per second Sep 19, 1977: 11.47 ft, below flood stage; 1,800 cubic feet per second Mar 24, 1978: 19.30 ft, moderate flooding; 6,100 cubic feet per second Apr 24, 1978: 17.11 ft, minor flooding; 4,230 cubic feet per second Jul 24, 1978: 19.75 ft, moderate flooding; 6,830 cubic feet per second Mar 20, 1979: 21.50 ft, major flooding; 11,300 cubic feet per second Apr 1, 1979: 17.19 ft, minor flooding; 4,460 cubic feet per second Jun 23, 1980: 8.34 ft, below flood stage; 1,000 cubic feet per second Apr 12, 1981: 19.47 ft, moderate flooding; 6,290 cubic feet per second Mar 20, 1982: 18.00 ft, moderate flooding; 4,920 cubic feet per second Jul 21, 1982: 21.18 ft, major flooding; 8,650 cubic feet per second Apr 5, 1983: 17.04 ft, minor flooding; 4,190 cubic feet per second May 3, 1984: 17.42 ft, minor flooding; 4,470 cubic feet per second Feb 25, 1985: 17.78 ft, minor flooding; 4,000 cubic feet per second Mar 7, 1985: 17.56 ft, minor flooding; 4,750 cubic feet per second May 19, 1986: 18.00 ft, moderate flooding; 4,920 cubic feet per second Aug 15, 1986: 18.18 ft, moderate flooding; 5,060 cubic feet per second Jan 31, 1987: 11.62 ft, below flood stage Aug 30, 1987: 18.81 ft, moderate flooding; 5,590 cubic feet per second Nov 30, 1987: 10.88 ft, below flood stage; 1,690 cubic feet per second Sep 9, 1989: 14.91 ft, action stage; 3,070 cubic feet per second May 28, 1990: 17.17 ft, minor flooding; 3,990 cubic feet per second Jun 20, 1990: 25.18 ft, major flooding; 21,300 cubic feet per second Jul 31, 1990: 18.49 ft, moderate flooding; 4,810 cubic feet per second Apr 16, 1991: 16.92 ft, minor flooding; 4,790 cubic feet per second Apr 21, 1991: 16.91 ft, minor flooding; 4,850 cubic feet per second May 2, 1991: 18.81 ft, moderate flooding; 6,840 cubic feet per second Apr 21, 1992: 17.45 ft, minor flooding; 4,490 cubic feet per second Jul 26, 1992: 21.02 ft, major flooding; 8,340 cubic feet per second Jul 31, 1992: 18.21 ft, moderate flooding; 5,090 cubic feet per second Sep 10, 1992: 18.12 ft, moderate flooding; 5,010 cubic feet per second Nov 21, 1992: 18.09 ft, moderate flooding; 5,570 cubic feet per second Dec 16, 1992: 15.69 ft, action stage; 3,810 cubic feet per second Mar 7, 1993: 20.10 ft, moderate flooding; 7,760 cubic feet per second Mar 23, 1993: 16.78 ft, minor flooding; 4,470 cubic feet per second Apr 2, 1993: 20.38 ft, moderate flooding; 8,110 cubic feet per second Apr 20, 1993: 21.36 ft, major flooding; 9,770 cubic feet per second May 3, 1993: 20.58 ft, moderate flooding; 8,510 cubic feet per second May 7, 1993: 16.66 ft, minor flooding; 4,430 cubic feet per second Jun 8, 1993: 15.94 ft, action stage; 3,920 cubic feet per second Jun 19, 1993: 18.17 ft, moderate flooding; 5,590 cubic feet per second Jul 6, 1993: 24.68 ft, major flooding; 17,500 cubic feet per second Jul 13, 1993: 19.63 ft, moderate flooding; 7,270 cubic feet per second Jul 26, 1993: 18.33 ft, moderate flooding; 5,790 cubic feet per second Aug 17, 1993: 21.29 ft, major flooding; 9,470 cubic feet per second Sep 2, 1993: 19.83 ft, moderate flooding; 7,400 cubic feet per second Sep 28, 1993: 20.46 ft, moderate flooding; 8,220 cubic feet per second Feb 22, 1994: 19.10 ft, moderate flooding; 5,500 cubic feet per second Apr 30, 1995: 16.76 ft, minor flooding; 4,450 cubic feet per second May 13, 1995: 19.06 ft, moderate flooding; 6,520 cubic feet per second May 11, 1996: 21.71 ft, major flooding; 10,200 cubic feet per second May 28, 1996: 19.78 ft, moderate flooding; 7,340 cubic feet per second Feb 22, 1997: 19.57 ft, moderate flooding; 5,300 cubic feet per second Apr 3, 1998: 18.11 ft, moderate flooding; 5,510 cubic feet per second Jun 15, 1998: 15.85 ft, action stage; 3,870 cubic feet per second Oct 18, 1998: 18.88 ft, moderate flooding; 6,320 cubic feet per second Oct 6, 1999: 17.39 ft, minor flooding; 4,920 cubic feet per second Jun 27, 2000: 16.83 ft, minor flooding; 3,950 cubic feet per second Feb 25, 2001: 18.34 ft, moderate flooding; 6,100 cubic feet per second Mar 16, 2001: 18.43 ft, moderate flooding; 6,200 cubic feet per second May 11, 2001: 17.27 ft, minor flooding; 5,090 cubic feet per second Jun 17, 2001: 16.39 ft, minor flooding; 4,430 cubic feet per second May 12, 2002: 13.35 ft, below flood stage; 2,720 cubic feet per second May 11, 2003: 13.00 ft, below flood stage; 2,840 cubic feet per second May 28, 2004: 14.95 ft, action stage; 3,200 cubic feet per second May 16, 2005: 13.64 ft, below flood stage; 3,240 cubic feet per second Apr 4, 2006: 9.91 ft, below flood stage; 1,760 cubic feet per second May 9, 2007: 19.16 ft, moderate flooding; 6,380 cubic feet per second Mar 16, 2008: 19.95 ft, moderate flooding Apr 27, 2008: 19.06 ft, moderate flooding Jun 14, 2008: 21.15 ft, major flooding; 9,240 cubic feet per second Mar 11, 2009: 21.24 ft, major flooding; 9,390 cubic feet per second Aug 12, 2010: 23.65 ft, major flooding; 14,700 cubic feet per second Feb 18, 2011: 16.32 ft, minor flooding; 4,339 cubic feet per second May 30, 2011: 17.03 ft, minor flooding; 4,747 cubic feet per second Jun 15, 2011: 20.88 ft, moderate flooding; 8,500 cubic feet per second Jun 21, 2011: 17.90 ft, minor flooding; 5,291 cubic feet per second Apr 19, 2013: 23.27 ft, major flooding; 13,569 cubic feet per second May 5, 2013: 16.03 ft, minor flooding; 4,186 cubic feet per second May 28, 2013: 25.93 ft, major flooding; 22,000 cubic feet per second Feb 21, 2014: 16.28 ft, minor flooding; 4,323 cubic feet per second Jul 3, 2014: 23.12 ft, major flooding; 13,304 cubic feet per second Sep 11, 2014: 18.93 ft, moderate flooding; 6,096 cubic feet per second Oct 15, 2014: 16.96 ft, minor flooding; 4,707 cubic feet per second Jun 30, 2015: 18.37 ft, moderate flooding; 5,636 cubic feet per second Nov 28, 2015: 18.50 ft, moderate flooding; 5,740 cubic feet per second Feb 24, 2019: 16.07 ft, minor flooding; 4,208 cubic feet per second Mar 16, 2019: 23.01 ft, major flooding; 13,025 cubic feet per second May 19, 2019: 22.76 ft, major flooding; 12,418 cubic feet per second Jul 4, 2024: 17.29 ft, minor flooding; 4,899 cubic feet per second Highest, 25.93 ft, May 28, 2013 1960 1980 2000 2020 Crests at or above flood stage, by decade Crests at or above flood stage per decade, North Skunk River near Sigourney 1940s: 7 1950s: 8 1960s: 24 1970s: 23 1980s: 10 1990s: 33 33 2000s: 10 2010s: 17 2020s: 1 1940s 1950s 1960s 1970s 1980s 1990s 2000s 2010s 2020s These are the crests the local National Weather Service office lists for the gauge: the highest on record and recent crests. Lesser floods between them may be missing, so counts by decade are a floor. Categories use today's flood stages. Levees, dams and channel changes since a crest can make old and new stages not directly comparable. Keokuk County: every hazard · River floods across the country · Iowa
NOAA National Water Prediction Service, gauge SIGI4, retrieved October 30, 2026. Stages in feet on the gauge's own datum, not elevation. Crests are as the National Weather Service lists them; preliminary values may be revised.