Cataract Canyon peak flows are determined by utilizing United States Geological Survey (USGS) data for gauging stations at Cisco on the Colorado River and Green River on the Green River. USGS maintains mean daily values for these stations. A Cataract Canyon peak flow is the highest daily total of the mean values in a calendar year for those two stations.
Year
|
Peak Flow
(cubic feet per second)
|
Date
|
2013
|
22,800
|
5/19
|
2012
|
15,070
|
5/27
|
2011
|
84,800
|
06/11
|
2010
|
44,000
|
06/01
|
2009
|
52,178
|
05/27
|
2008
|
63,315
|
05/24
|
2007
|
26,850
|
05/22
|
2006
|
44,573
|
05/25
|
2005
|
69,020
|
05/27
|
2004
|
19,455
|
05/14
|
2003
|
47,900
|
06/04
|
2002
|
10,690
|
05/26
|
2001
|
32,000
|
05/21
|
2000
|
34,300
|
05/31
|
1999
|
45,000
|
06/19
|
1998
|
49,700
|
05/23
|
1997
|
70,800
|
06/10
|
1996
|
51,600
|
05/21
|
1995
|
80,700
|
06/19
|
1994
|
26,600
|
05/21
|
1993
|
70,900
|
05/29
|
1992
|
24,860
|
05/29
|
1991
|
30,000
|
05/24
|
1990
|
22,400
|
06/13
|
1989
|
16,310
|
04/26
|
1988
|
28,600
|
05/22
|
1987
|
43,000
|
05/19
|
1986
|
69,500
|
06/08
|
1985
|
68,200
|
05/10
|
1984
|
114,900
|
05/27
|
1983
|
104,700
|
06/27
|
1982
|
39,100
|
05/31
|
1981
|
23,700
|
06/09
|
1980
|
59,100
|
06/13
|
1979
|
73,100
|
05/30
|
1978
|
53,900
|
06/17
|
1977
|
12,570
|
06/10
|
1976
|
30,800
|
05/23
|
1975
|
54,800
|
06/10
|
1974
|
50,000
|
05/14
|
1973
|
69,200
|
05/22
|
1972
|
37,700
|
06/10
|
1971
|
44,400
|
06/20 to 06/21
|
1970
|
56,600
|
05/24
|
1969
|
38,000
|
05/22 to 05/24
|
1968
|
58,000
|
06/07
|
1967
|
39,200
|
05/27
|
1966
|
28,400
|
05/11
|
1965
|
64,800
|
06/17
|
1964
|
48,900
|
05/28
|
1963
|
19,860
|
05/21 to 05/22
|
1962
|
75,300
|
05/14
|
1961
|
32,400
|
06/03
|
1960
|
37,700
|
06/06
|
1959
|
35,700
|
06/16
|
1958
|
86,000
|
05/31
|
1957
|
101,200
|
06/11
|
1956
|
59,000
|
06/04
|
1955
|
29,000
|
05/17
|
1954
|
27,180
|
05/27
|
1953
|
60,600
|
06/15
|
1952
|
100,100
|
06/10
|
1951
|
55,600
|
05/30
|
1950
|
52,200
|
06/08
|
1949
|
85,900
|
06/21
|
1948
|
75,600
|
05/23
|
1947
|
64,300
|
05/12
|
1946
|
43,300
|
06/12
|
1945
|
53,900
|
05/15
|
1944
|
72,500
|
05/18
|
1943
|
59,300
|
06/04
|
1942
|
76,500
|
05/29
|
1941
|
83,400
|
05/15
|
1940
|
38,600
|
05/14
|
1939
|
40,700
|
05/24
|
1938
|
82,800
|
06/06
|
1937
|
63,900
|
05/19
|
1936
|
65,800
|
05/21
|
1935
|
83,900
|
06/16 to 06/17
|
1934
|
21,980
|
05/13
|
1933
|
71,800
|
06/03
|
1932
|
86,200
|
05/24
|
1931
|
27,100
|
05/20
|
1930
|
60,200
|
06/01
|
1929
|
99,300
|
05/27
|
1928
|
106,600
|
06/01
|
1927
|
78,700
|
05/21
|
1926
|
71,200
|
05/27
|
1925
|
47,700
|
06/02
|
1924
|
63,600
|
06/16
|
1923
|
87,300
|
05/29
|
|