Highest listed crest 20.55 ft June 28, 2006; 62,400 cubic feet per second
Flood stage 10.0 ft Major flooding from 18.0 ft
Crests at major 2 68th of 160 gauges in New York
Most recent flood crest July 29, 2026 13.77 ft, minor flooding Listed crests at the Beaver Kill at Cooks Falls, 1934 to 2026 10 12 14 16 18 20 22 ft Flood stage 10.0 ft Major 18.0 ft Dec 1, 1934: 11.99 ft, minor flooding; 11,000 cubic feet per second Oct 31, 1935: 10.10 ft, minor flooding; 8,410 cubic feet per second Mar 11, 1936: 12.72 ft, minor flooding; 14,500 cubic feet per second Mar 18, 1936: 15.02 ft, minor flooding; 21,300 cubic feet per second Feb 22, 1937: 13.02 ft, minor flooding; 15,300 cubic feet per second Oct 23, 1937: 13.32 ft, minor flooding; 16,100 cubic feet per second Jul 22, 1938: 13.46 ft, minor flooding; 16,500 cubic feet per second Aug 11, 1938: 14.51 ft, minor flooding; 19,600 cubic feet per second Sep 21, 1938: 13.67 ft, minor flooding; 17,100 cubic feet per second Dec 6, 1938: 10.42 ft, minor flooding; 9,040 cubic feet per second Mar 31, 1940: 11.55 ft, minor flooding; 11,500 cubic feet per second Apr 9, 1940: 11.26 ft, minor flooding; 10,800 cubic feet per second Sep 27, 1942: 14.71 ft, minor flooding; 20,300 cubic feet per second Dec 30, 1942: 10.95 ft, minor flooding; 10,200 cubic feet per second Nov 9, 1943: 11.31 ft, minor flooding; 10,900 cubic feet per second Mar 17, 1944: 11.66 ft, minor flooding Mar 9, 1946: 10.14 ft, minor flooding; 9,650 cubic feet per second Mar 22, 1948: 11.73 ft, minor flooding; 15,100 cubic feet per second Dec 30, 1948: 12.14 ft, minor flooding; 16,300 cubic feet per second Jan 6, 1949: 10.32 ft, minor flooding; 10,900 cubic feet per second Nov 26, 1950: 15.52 ft, minor flooding; 29,400 cubic feet per second Mar 31, 1951: 16.02 ft, moderate flooding; 31,600 cubic feet per second Nov 7, 1951: 10.50 ft, minor flooding; 11,400 cubic feet per second Apr 5, 1952: 10.56 ft, minor flooding; 11,600 cubic feet per second Jul 10, 1952: 10.38 ft, minor flooding; 11,000 cubic feet per second Dec 11, 1952: 12.54 ft, minor flooding; 17,700 cubic feet per second Aug 19, 1955: 11.44 ft, minor flooding; 14,300 cubic feet per second Oct 16, 1955: 10.73 ft, minor flooding; 12,300 cubic feet per second Dec 21, 1957: 15.42 ft, minor flooding; 28,900 cubic feet per second Apr 2, 1959: 10.21 ft, minor flooding; 10,900 cubic feet per second Nov 28, 1959: 11.39 ft, minor flooding; 14,200 cubic feet per second Apr 4, 1960: 10.66 ft, minor flooding; 12,100 cubic feet per second Apr 25, 1961: 10.24 ft, minor flooding; 11,000 cubic feet per second Apr 1, 1962: 10.52 ft, minor flooding; 11,700 cubic feet per second Mar 17, 1968: 13.65 ft, minor flooding Jul 28, 1969: 15.11 ft, minor flooding; 27,500 cubic feet per second Oct 23, 1970: 11.82 ft, minor flooding; 15,500 cubic feet per second Nov 9, 1972: 10.09 ft, minor flooding; 9,680 cubic feet per second Jun 29, 1973: 11.67 ft, minor flooding; 14,100 cubic feet per second Dec 21, 1973: 13.06 ft, minor flooding; 18,700 cubic feet per second Dec 8, 1974: 12.68 ft, minor flooding; 17,200 cubic feet per second Jan 27, 1976: 11.93 ft, minor flooding; 14,900 cubic feet per second Oct 9, 1976: 10.86 ft, minor flooding; 11,700 cubic feet per second Mar 14, 1977: 15.20 ft, minor flooding; 28,400 cubic feet per second Oct 2, 1977: 10.09 ft, minor flooding; 9,760 cubic feet per second Jan 9, 1978: 13.52 ft, minor flooding; 20,300 cubic feet per second Jan 2, 1979: 10.50 ft, minor flooding; 10,800 cubic feet per second Mar 6, 1979: 10.32 ft, minor flooding; 10,300 cubic feet per second Sep 6, 1979: 10.04 ft, minor flooding; 9,640 cubic feet per second Nov 26, 1979: 12.27 ft, minor flooding; 15,900 cubic feet per second Mar 21, 1980: 14.30 ft, minor flooding; 23,800 cubic feet per second Feb 11, 1981: 10.75 ft, minor flooding; 11,400 cubic feet per second Feb 20, 1981: 12.44 ft, minor flooding; 16,400 cubic feet per second May 12, 1981: 11.72 ft, minor flooding; 14,200 cubic feet per second Apr 3, 1982: 10.71 ft, minor flooding; 11,300 cubic feet per second Apr 18, 1982: 10.99 ft, minor flooding; 12,100 cubic feet per second Apr 16, 1983: 11.67 ft, minor flooding; 14,400 cubic feet per second Feb 15, 1984: 10.25 ft, minor flooding; 10,400 cubic feet per second Apr 5, 1984: 11.95 ft, minor flooding; 15,300 cubic feet per second Sep 27, 1985: 10.16 ft, minor flooding; 10,100 cubic feet per second Mar 15, 1986: 13.19 ft, minor flooding; 19,800 cubic feet per second Apr 4, 1987: 14.20 ft, minor flooding; 23,900 cubic feet per second Mar 26, 1988: 10.60 ft, minor flooding; 11,300 cubic feet per second May 6, 1989: 10.74 ft, minor flooding; 11,700 cubic feet per second Oct 20, 1989: 11.29 ft, minor flooding; 13,300 cubic feet per second Nov 10, 1990: 13.15 ft, minor flooding; 19,600 cubic feet per second Nov 23, 1991: 10.30 ft, minor flooding; 10,500 cubic feet per second Apr 11, 1993: 10.81 ft, minor flooding; 11,900 cubic feet per second Nov 28, 1993: 11.22 ft, minor flooding; 13,100 cubic feet per second Apr 7, 1994: 10.07 ft, minor flooding; 9,910 cubic feet per second Apr 13, 1994: 11.50 ft, minor flooding; 13,900 cubic feet per second Oct 21, 1995: 11.75 ft, minor flooding; 14,700 cubic feet per second Jan 19, 1996: 17.79 ft, moderate flooding; 42,900 cubic feet per second Jan 27, 1996: 11.33 ft, minor flooding; 13,200 cubic feet per second Nov 9, 1996: 14.79 ft, minor flooding; 26,600 cubic feet per second Dec 2, 1996: 14.67 ft, minor flooding Jan 8, 1998: 10.88 ft, minor flooding; 11,900 cubic feet per second Mar 10, 1998: 10.64 ft, minor flooding; 11,200 cubic feet per second Jan 24, 1999: 12.33 ft, minor flooding; 16,600 cubic feet per second Sep 17, 1999: 11.50 ft, minor flooding; 13,900 cubic feet per second Dec 17, 2000: 16.34 ft, moderate flooding; 34,400 cubic feet per second Sep 4, 2003: 11.33 ft, minor flooding; 13,200 cubic feet per second Oct 27, 2003: 11.87 ft, minor flooding; 14,970 cubic feet per second Nov 20, 2003: 10.01 ft, minor flooding; 9,550 cubic feet per second Dec 11, 2003: 10.01 ft, minor flooding; 9,761 cubic feet per second Dec 24, 2003: 11.03 ft, minor flooding; 12,501 cubic feet per second Aug 13, 2004: 10.01 ft, minor flooding; 9,761 cubic feet per second Sep 18, 2004: 17.67 ft, moderate flooding; 41,112 cubic feet per second Nov 28, 2004: 10.17 ft, minor flooding; 10,163 cubic feet per second Jan 14, 2005: 11.72 ft, minor flooding; 14,602 cubic feet per second Mar 29, 2005: 10.42 ft, minor flooding; 10,812 cubic feet per second Apr 3, 2005: 18.98 ft, major flooding; 50,800 cubic feet per second Oct 9, 2005: 10.03 ft, minor flooding; 9,610 cubic feet per second Nov 30, 2005: 10.34 ft, minor flooding; 10,416 cubic feet per second Jan 18, 2006: 12.41 ft, minor flooding; 16,800 cubic feet per second Jun 28, 2006: 20.55 ft, major flooding; 62,400 cubic feet per second Apr 16, 2007: 11.46 ft, minor flooding; 13,900 cubic feet per second Mar 8, 2008: 10.82 ft, minor flooding; 11,700 cubic feet per second Jul 23, 2008: 12.43 ft, minor flooding; 17,000 cubic feet per second Dec 12, 2008: 12.07 ft, minor flooding; 15,800 cubic feet per second Jul 30, 2009: 10.61 ft, minor flooding; 11,500 cubic feet per second Mar 23, 2010: 11.64 ft, minor flooding; 14,400 cubic feet per second Oct 1, 2010: 15.69 ft, minor flooding; 30,700 cubic feet per second Dec 1, 2010: 12.29 ft, minor flooding; 16,500 cubic feet per second Mar 7, 2011: 11.37 ft, minor flooding; 13,600 cubic feet per second Mar 11, 2011: 13.07 ft, minor flooding; 19,300 cubic feet per second Aug 28, 2011: 15.60 ft, minor flooding; 30,300 cubic feet per second Sep 7, 2011: 13.64 ft, minor flooding; 21,460 cubic feet per second May 15, 2012: 12.26 ft, minor flooding; 16,432 cubic feet per second Sep 19, 2012: 14.58 ft, minor flooding; 25,452 cubic feet per second Mar 12, 2013: 10.18 ft, minor flooding; 10,400 cubic feet per second Oct 30, 2017: 13.80 ft, minor flooding; 22,113 cubic feet per second Jul 26, 2018: 11.39 ft, minor flooding; 13,664 cubic feet per second Nov 1, 2019: 11.02 ft, minor flooding; 12,595 cubic feet per second Apr 14, 2020: 10.75 ft, minor flooding; 11,850 cubic feet per second Aug 5, 2020: 10.81 ft, minor flooding; 12,013 cubic feet per second Oct 26, 2021: 13.78 ft, minor flooding; 22,032 cubic feet per second Apr 8, 2022: 13.14 ft, minor flooding; 19,532 cubic feet per second Dec 18, 2023: 11.51 ft, minor flooding; 14,402 cubic feet per second Aug 10, 2024: 10.32 ft, minor flooding; 10,725 cubic feet per second Jul 29, 2026: 13.77 ft, minor flooding; 19,912 cubic feet per second Highest, 20.55 ft, Jun 28, 2006 1940 1960 1980 2000 2020 Crests at or above flood stage, by decade Crests at or above flood stage per decade, Beaver Kill at Cooks Falls 1930s: 10 1940s: 10 1950s: 11 1960s: 5 1970s: 14 1980s: 15 1990s: 15 2000s: 21 21 2010s: 13 2020s: 7 1930s 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. 9 crests measured on an earlier gauge datum are left out: 10.90 ft on Mar 28, 1914; 11.00 ft on Mar 27, 1917; 12.40 ft on Oct 30, 1917; 11.00 ft on Nov 28, 1921; 10.80 ft on Apr 6, 1923; 15.00 ft on Sep 30, 1924; and more. 05 Other gauges in Delaware County Delaware County: every hazard · River floods across the country · New York
NOAA National Water Prediction Service, gauge CKFN6, 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.