Comparison of Historical Peaks to (ONI) Oceanic Index
Water Year, Observed Date, Observed Stage, ONI
51, 1951-05-12, 10.30, -0.60
52, 1952-04-28, 9.66, 1.04
53, 1953-06-14, 10.78, 0.04
54, 1954-05-21, 12.25, 0.84
55, 1955-06-14, 9.86, -0.73
56, 1956-05-22, 11.97, -1.67
57, 1957-05-07, 10.75, -0.43
58, 1958-05-13, 10.20, 1.53
59, 1959-06-06, 10.99, 0.50
60, 1960-06-04, 10.08, 0.05
61, 1961-05-28, 11.83, 0.12
62, 1962-05-29, 8.51, -0.19
63, 1963-05-31, 8.08, -0.31
64, 1964-06-09, 18.60, 1.37
65, 1965-06-19, 10.57, -0.82
66, 1966-06-01, 9.60, 1.97
67, 1967-05-23, 11.20, -0.18
68, 1968-06-04, 9.08, -0.34
69, 1969-05-14, 8.09, 0.73
70, 1970-05-27, 9.09, 0.81
71, 1971-05-28, 10.09, -0.86
72, 1972-06-02, 12.00, -0.96
73, 1973-05-18, 9.15, 2.09
74, 1974-06-18, 12.58, -1.95
75, 1975-06-21, 11.98, -0.75
76, 1976-05-11, 10.56, -1.55
77, 1977-05-11, 6.29, 0.86
78, 1978-06-06, 9.00, 0.81
79, 1979-05-27, 9.16, -0.08
80, 1980-05-26, 9.18, 0.52
81, 1981-05-23, 9.10, 0.11
82, 1982-05-26, 9.55, -0.15
83, 1983-05-27, 9.59, 2.18
84, 1984-05-31, 8.42, -1.00
85, 1985-05-25, 9.25, -0.92
86, 1986-05-29, 10.25, -0.27
87, 1987-05-02, 9.23, 1.14
88, 1988-05-13, 7.52, 1.25
89, 1989-05-10, 8.71, -1.80
90, 1990-06-01, 9.16, -0.16
91, 1991-05-20, 11.03, 0.40
92, 1992-05-08, 7.14, 1.21
93, 1993-05-15, 9.25, -0.28
94, 1994-05-13, 8.21, 0.04
95, 1995-06-07, 17.07, 1.01
96, 1996-06-09, 11.27, -1.00
97, 1997-05-17, 11.77, -0.45
98, 1998-05-28, 8.79, 2.40
99, 1999-05-26, 9.85, -1.48
00, 2000-05-23, 8.78, -1.46
01, 2001-05-26, 7.23, -0.75
02, 2002-05-31, 10.29, -0.35
03, 2003-05-30, 8.79, 1.31
04, 2004-05-05, 6.94, 0.35
05, 2005-06-08, 8.00, 0.66
06, 2006-05-20, 10.00, -0.57
07, 2006-11-08, 9.39, 0.94
08, 2008-05-19, 10.47, -1.50
09, 2009-05-31, 8.66, -0.55
10, 2010-06-22, 7.64, 1.36
11, 2011-06-08, 9.86, -1.64
12, 2012-06-18, 9.43, -1.09
13, 2013-05-14, 10.65, 0.05
14, 2014-05-25, 9.97, -0.17
15, 2015-06-03, 7.72, 0.64
16, 2016-04-24, 7.63, 2.57
17, 2017-06-01, 9.22, -0.67
18, 2018-05-09, 10.21, -0.84
19, 2019-05-17, 7.90, 0.90