Click on column header to sort on the field| # | Water Year | Observed Date | Index | Stage | Discharge | Designation |
| 1 | 1951 | 1950-11-02 | -0.60 | 13.96 | 23500 | La Nina |
| 2 | 1952 | 1951-10-23 | 1.04 | 10.74 | 14500 | El Nino |
| 3 | 1953 | 1953-01-18 | 0.04 | 20.16 | 40700 | Neutral |
| 4 | 1954 | 1953-12-20 | 0.84 | 18.00 | 33700 | El Nino |
| 5 | 1955 | 1954-12-31 | -0.73 | 10.83 | 14400 | La Nina |
| 6 | 1956 | 1955-12-21 | -1.67 | 22.62 | 42600 | La Nina |
| 7 | 1957 | 1957-02-26 | -0.43 | 16.80 | 26300 | Neutral |
| 8 | 1958 | 1958-04-20 | 1.53 | 9.94 | 23300 | El Nino |
| 9 | 1959 | 1959-01-12 | 0.50 | 8.88 | 18600 | Neutral |
| 10 | 1960 | 1960-03-29 | 0.05 | 8.70 | 18000 | Neutral |
| 11 | 1961 | 1960-11-24 | 0.12 | 14.82 | 55200 | Neutral |
| 12 | 1962 | 1961-12-21 | -0.19 | 9.70 | 23000 | Neutral |
| 13 | 1963 | 1962-11-20 | -0.31 | 10.40 | 26500 | Neutral |
| 14 | 1964 | 1963-11-08 | 1.37 | 8.50 | 17500 | El Nino |
| 15 | 1965 | 1964-12-22 | -0.82 | 18.36 | 86900 | La Nina |
| 16 | 1966 | 1966-03-09 | 1.97 | 6.67 | 16900 | El Nino |
| 17 | 1967 | 1967-01-28 | -0.18 | 7.61 | 23700 | Neutral |
| 18 | 1968 | 1968-02-19 | -0.34 | 8.97 | 29700 | Neutral |
| 19 | 1969 | 1969-01-07 | 0.73 | 8.65 | 27100 | El Nino |
| 20 | 1970 | 1970-01-23 | 0.81 | 11.51 | 36100 | El Nino |
| 21 | 1971 | 1971-01-19 | -0.86 | 11.06 | 33400 | La Nina |
| 22 | 1972 | 1972-01-21 | -0.96 | 15.52 | 64200 | La Nina |
| 23 | 1973 | 1972-12-21 | 2.09 | 10.37 | 28800 | El Nino |
| 24 | 1974 | 1974-01-16 | -1.95 | 15.03 | 60000 | La Nina |
| 25 | 1975 | 1975-01-25 | -0.75 | 9.58 | 24800 | La Nina |
| 26 | 1976 | 1975-12-04 | -1.55 | 12.33 | 40100 | La Nina |
| 27 | 1977 | 1977-03-08 | 0.86 | 4.25 | 5470 | El Nino |
| 28 | 1978 | 1977-12-13 | 0.81 | 13.56 | 48800 | El Nino |
| 29 | 1979 | 1979-02-07 | -0.08 | 8.70 | 20700 | Neutral |
| 30 | 1980 | 1980-01-14 | 0.52 | 10.58 | 29800 | El Nino |
| 31 | 1981 | 1980-12-25 | 0.11 | 12.69 | 42600 | Neutral |
| 32 | 1982 | 1982-02-20 | -0.15 | 12.70 | 42600 | Neutral |
| 33 | 1983 | 1983-01-06 | 2.18 | 11.26 | 33600 | El Nino |
| 34 | 1984 | 1984-02-13 | -1.00 | 8.18 | 18500 | La Nina |
| 35 | 1985 | 1984-11-03 | -0.92 | 8.81 | 21100 | La Nina |
| 36 | 1986 | 1986-02-23 | -0.27 | 12.80 | 43300 | Neutral |
| 37 | 1987 | 1986-11-27 | 1.14 | 8.15 | 18100 | El Nino |
| 38 | 1988 | 1987-12-10 | 1.25 | 11.46 | 34800 | El Nino |
| 39 | 1989 | 1989-01-10 | -1.80 | 9.23 | 22900 | La Nina |
| 40 | 1990 | 1990-04-27 | -0.16 | 9.60 | 24700 | Neutral |
| 41 | 1991 | 1991-01-15 | 0.40 | 7.83 | 16800 | Neutral |
| 42 | 1992 | 1991-12-06 | 1.21 | 19.05 | 22100 | El Nino |
| 43 | 1993 | 1992-11-21 | -0.28 | 18.24 | 18500 | Neutral |
| 44 | 1994 | 1994-01-03 | 0.04 | 17.17 | 14400 | Neutral |
| 45 | 1995 | 1995-01-31 | 1.01 | 20.83 | 26000 | El Nino |
| 46 | 1996 | 1996-02-07 | -1.00 | 27.57 | 68900 | La Nina |
| 47 | 1997 | 1997-01-01 | -0.45 | 22.30 | 34000 | Neutral |
| 48 | 1998 | 1997-10-30 | 2.40 | 20.38 | 24800 | El Nino |
| 49 | 1999 | 1998-12-28 | -1.48 | 22.39 | 34500 | La Nina |
| 50 | 2000 | 1999-11-26 | -1.46 | 22.68 | 36000 | La Nina |
| 51 | 2001 | 2001-05-01 | -0.75 | 14.71 | 6990 | La Nina |
| 52 | 2002 | 2002-04-14 | -0.35 | 19.95 | 22900 | Neutral |
| 53 | 2003 | 2003-01-31 | 1.31 | 19.90 | 22700 | El Nino |
| 54 | 2004 | 2003-12-13 | 0.35 | 19.09 | 19500 | Neutral |
| 55 | 2005 | 2005-03-27 | 0.66 | 17.90 | 15400 | El Nino |
| 56 | 2006 | 2006-01-11 | -0.57 | 22.63 | 35700 | La Nina |
| 57 | 2007 | 2006-11-07 | 0.94 | 22.29 | 33900 | El Nino |
| 58 | 2008 | 2007-12-04 | -1.50 | 20.38 | 24800 | La Nina |
| 59 | 2009 | 2009-01-02 | -0.55 | 22.75 | 36400 | La Nina |
| 60 | 2010 | 2010-03-29 | 1.36 | 17.92 | 15400 | El Nino |
| 61 | 2011 | 2011-01-16 | -1.64 | 24.01 | 43700 | La Nina |
| 62 | 2012 | 2012-01-19 | -1.09 | 21.33 | 29100 | La Nina |
| 63 | 2013 | 2012-11-20 | 0.05 | 20.00 | 23100 | Neutral |
| 64 | 2014 | 2014-02-16 | -0.17 | 18.93 | 18900 | Neutral |
| 65 | 2015 | 2014-12-21 | 0.64 | 20.27 | 24300 | El Nino |
| 66 | 2016 | 2015-12-07 | 2.57 | 21.18 | 30400 | El Nino |
| 67 | 2017 | 2017-02-09 | -0.67 | 19.33 | 21800 | La Nina |
| 68 | 2018 | 2017-10-22 | -0.84 | 21.17 | 30400 | La Nina |
| 69 | 2019 | 2019-04-08 | 0.90 | 21.00 | 29500 | El Nino |
