Click on column header to sort on the field| # | Water Year | Observed Date | Index | Stage | Discharge | Designation |
| 1 | 1951 | 1951-05-12 | -0.60 | 10.30 | 20800 | La Nina |
| 2 | 1952 | 1952-04-28 | 1.04 | 9.66 | 18100 | El Nino |
| 3 | 1953 | 1953-06-14 | 0.04 | 10.78 | 23800 | Neutral |
| 4 | 1954 | 1954-05-21 | 0.84 | 12.25 | 31500 | El Nino |
| 5 | 1955 | 1955-06-14 | -0.73 | 9.86 | 18700 | La Nina |
| 6 | 1956 | 1956-05-22 | -1.67 | 11.97 | 29700 | La Nina |
| 7 | 1957 | 1957-05-07 | -0.43 | 10.75 | 23000 | Neutral |
| 8 | 1958 | 1958-05-13 | 1.53 | 10.20 | 20400 | El Nino |
| 9 | 1959 | 1959-06-06 | 0.50 | 10.99 | 25200 | Neutral |
| 10 | 1960 | 1960-06-04 | 0.05 | 10.08 | 20700 | Neutral |
| 11 | 1961 | 1961-05-28 | 0.12 | 11.83 | 29900 | Neutral |
| 12 | 1962 | 1962-05-29 | -0.19 | 8.51 | 14200 | Neutral |
| 13 | 1963 | 1963-05-31 | -0.31 | 8.08 | 13800 | Neutral |
| 14 | 1964 | 1964-06-09 | 1.37 | 18.60 | 69100 | El Nino |
| 15 | 1965 | 1965-06-19 | -0.82 | 10.57 | 23300 | La Nina |
| 16 | 1966 | 1966-06-01 | 1.97 | 9.60 | 19500 | El Nino |
| 17 | 1967 | 1967-05-23 | -0.18 | 11.20 | 26000 | Neutral |
| 18 | 1968 | 1968-06-04 | -0.34 | 9.08 | 17500 | Neutral |
| 19 | 1969 | 1969-05-14 | 0.73 | 8.09 | 17600 | El Nino |
| 20 | 1970 | 1970-05-27 | 0.81 | 9.09 | 18400 | El Nino |
| 21 | 1971 | 1971-05-28 | -0.86 | 10.09 | 22200 | La Nina |
| 22 | 1972 | 1972-06-02 | -0.96 | 12.00 | 31400 | La Nina |
| 23 | 1973 | 1973-05-18 | 2.09 | 9.15 | 18600 | El Nino |
| 24 | 1974 | 1974-06-18 | -1.95 | 12.58 | 34300 | La Nina |
| 25 | 1975 | 1975-06-21 | -0.75 | 11.98 | 30700 | La Nina |
| 26 | 1976 | 1976-05-11 | -1.55 | 10.56 | 24200 | La Nina |
| 27 | 1977 | 1977-05-11 | 0.86 | 6.29 | 8520 | El Nino |
| 28 | 1978 | 1978-06-06 | 0.81 | 9.00 | 18000 | El Nino |
| 29 | 1979 | 1979-05-27 | -0.08 | 9.16 | 18600 | Neutral |
| 30 | 1980 | 1980-05-26 | 0.52 | 9.18 | 18400 | El Nino |
| 31 | 1981 | 1981-05-23 | 0.11 | 9.10 | 18000 | Neutral |
| 32 | 1982 | 1982-05-26 | -0.15 | 9.55 | 19900 | Neutral |
| 33 | 1983 | 1983-05-27 | 2.18 | 9.59 | 20000 | El Nino |
| 34 | 1984 | 1984-05-31 | -1.00 | 8.42 | 15400 | La Nina |
| 35 | 1985 | 1985-05-25 | -0.92 | 9.25 | 18600 | La Nina |
| 36 | 1986 | 1986-05-29 | -0.27 | 10.25 | 22900 | Neutral |
| 37 | 1987 | 1987-05-02 | 1.14 | 9.23 | 18600 | El Nino |
| 38 | 1988 | 1988-05-13 | 1.25 | 7.52 | 12300 | El Nino |
| 39 | 1989 | 1989-05-10 | -1.80 | 8.71 | 16500 | La Nina |
| 40 | 1990 | 1990-06-01 | -0.16 | 9.16 | 19300 | Neutral |
| 41 | 1991 | 1991-05-20 | 0.40 | 11.03 | 25800 | Neutral |
| 42 | 1992 | 1992-05-08 | 1.21 | 7.14 | 10900 | El Nino |
| 43 | 1993 | 1993-05-15 | -0.28 | 9.25 | 18700 | Neutral |
| 44 | 1994 | 1994-05-13 | 0.04 | 8.21 | 14300 | Neutral |
| 45 | 1995 | 1995-06-07 | 1.01 | 17.07 | 59200 | El Nino |
| 46 | 1996 | 1996-06-09 | -1.00 | 11.27 | 26400 | La Nina |
| 47 | 1997 | 1997-05-17 | -0.45 | 11.77 | 29300 | Neutral |
| 48 | 1998 | 1998-05-28 | 2.40 | 8.79 | 16400 | El Nino |
| 49 | 1999 | 1999-05-26 | -1.48 | 9.85 | 20500 | La Nina |
| 50 | 2000 | 2000-05-23 | -1.46 | 8.78 | 16500 | La Nina |
| 51 | 2001 | 2001-05-26 | -0.75 | 7.23 | 11300 | La Nina |
| 52 | 2002 | 2002-05-31 | -0.35 | 10.29 | 22600 | Neutral |
| 53 | 2003 | 2003-05-30 | 1.31 | 8.79 | 16800 | El Nino |
| 54 | 2004 | 2004-05-05 | 0.35 | 6.94 | 10700 | Neutral |
| 55 | 2005 | 2005-06-08 | 0.66 | 8.00 | 14200 | El Nino |
| 56 | 2006 | 2006-05-20 | -0.57 | 10.00 | 21600 | La Nina |
| 57 | 2007 | 2006-11-08 | 0.94 | 9.39 | 19200 | El Nino |
| 58 | 2008 | 2008-05-19 | -1.50 | 10.47 | 23600 | La Nina |
| 59 | 2009 | 2009-05-31 | -0.55 | 8.66 | 16900 | La Nina |
| 60 | 2010 | 2010-06-22 | 1.36 | 7.64 | 13200 | El Nino |
| 61 | 2011 | 2011-06-08 | -1.64 | 9.86 | 21100 | La Nina |
| 62 | 2012 | 2012-06-18 | -1.09 | 9.43 | 20100 | La Nina |
| 63 | 2013 | 2013-05-14 | 0.05 | 10.65 | 24300 | Neutral |
| 64 | 2014 | 2014-05-25 | -0.17 | 9.97 | 21900 | Neutral |
| 65 | 2015 | 2015-06-03 | 0.64 | 7.72 | 13300 | El Nino |
| 66 | 2016 | 2016-04-24 | 2.57 | 7.63 | 13000 | El Nino |
| 67 | 2017 | 2017-06-01 | -0.67 | 9.22 | 18600 | La Nina |
| 68 | 2018 | 2018-05-09 | -0.84 | 10.21 | 22500 | La Nina |
| 69 | 2019 | 2019-05-17 | 0.90 | 7.90 | 13900 | El Nino |
