Click on column header to sort on the field| # | Water Year | Observed Date | Index | Stage | Discharge | Designation |
| 1 | 1951 | 1951-04-05 | -0.60 | 9.04 | 7170 | La Nina |
| 2 | 1952 | 1952-04-15 | 1.04 | 15.70 | 22900 | El Nino |
| 3 | 1953 | 1953-05-19 | 0.04 | 1.33 | 218 | Neutral |
| 4 | 1954 | 1954-08-31 | 0.84 | 2.06 | 373 | El Nino |
| 5 | 1955 | 1955-08-16 | -0.73 | 1.90 | 310 | La Nina |
| 6 | 1956 | 1956-04-03 | -1.67 | 1.58 | 236 | La Nina |
| 7 | 1957 | 1957-05-21 | -0.43 | 9.33 | 7460 | Neutral |
| 8 | 1958 | 1958-04-19 | 1.53 | 9.40 | 7580 | El Nino |
| 9 | 1959 | 1959-04-17 | 0.50 | 1.43 | 214 | Neutral |
| 10 | 1960 | 1960-09-12 | 0.05 | 1.77 | 272 | Neutral |
| 11 | 1961 | 1960-10-01 | 0.12 | 0.94 | 114 | Neutral |
| 12 | 1962 | 1962-09-18 | -0.19 | 1.16 | 138 | Neutral |
| 13 | 1963 | 1963-09-25 | -0.31 | 1.39 | 154 | Neutral |
| 14 | 1964 | 1964-06-19 | 1.37 | 3.64 | 950 | El Nino |
| 15 | 1965 | 1965-02-02 | -0.82 | 10.52 | 9700 | La Nina |
| 16 | 1966 | 1966-05-26 | 1.97 | 1.43 | 196 | El Nino |
| 17 | 1967 | 1967-04-03 | -0.18 | 1.45 | 200 | Neutral |
| 18 | 1968 | 1968-04-08 | -0.34 | 1.16 | 144 | Neutral |
| 19 | 1969 | 1969-04-08 | 0.73 | 11.12 | 10800 | El Nino |
| 20 | 1970 | 1970-05-16 | 0.81 | 4.84 | 1810 | El Nino |
| 21 | 1971 | 1971-01-19 | -0.86 | 12.93 | 14900 | La Nina |
| 22 | 1972 | 1972-03-07 | -0.96 | 12.85 | 14700 | La Nina |
| 23 | 1973 | 1973-04-14 | 2.09 | 6.61 | 3170 | El Nino |
| 24 | 1974 | 1974-03-21 | -1.95 | 9.80 | 7550 | La Nina |
| 25 | 1975 | 1975-05-21 | -0.75 | 9.09 | 6340 | La Nina |
| 26 | 1976 | 1976-04-09 | -1.55 | 9.43 | 6680 | La Nina |
| 27 | 1977 | 1977-05-01 | 0.86 | 1.94 | 252 | El Nino |
| 28 | 1978 | 1978-04-30 | 0.81 | 9.71 | 6570 | El Nino |
| 29 | 1979 | 1979-03-18 | -0.08 | 8.24 | 4520 | Neutral |
| 30 | 1980 | 1980-06-06 | 0.52 | 6.38 | 2970 | El Nino |
| 31 | 1981 | 1981-05-11 | 0.11 | | | Neutral |
| 32 | 1982 | 1982-02-23 | -0.15 | 10.94 | 9220 | Neutral |
| 33 | 1983 | 1983-03-15 | 2.18 | 12.46 | 12800 | El Nino |
| 34 | 1984 | 1984-04-17 | -1.00 | 14.73 | 19800 | La Nina |
| 35 | 1985 | 1985-04-10 | -0.92 | 8.49 | 5810 | La Nina |
| 36 | 1986 | 1986-02-25 | -0.27 | 15.12 | 20900 | Neutral |
| 37 | 1987 | 1986-12-01 | 1.14 | 2.20 | 270 | El Nino |
| 38 | 1988 | 1987-10-10 | 1.25 | 2.05 | 207 | El Nino |
| 39 | 1989 | 1989-04-03 | -1.80 | 9.56 | 7820 | La Nina |
| 40 | 1990 | 1990-06-24 | -0.16 | 2.28 | 273 | Neutral |
| 41 | 1991 | 1991-07-19 | 0.40 | 2.14 | 234 | Neutral |
| 42 | 1992 | 1992-04-01 | 1.21 | 2.01 | 178 | El Nino |
| 43 | 1993 | 1993-03-28 | -0.28 | 8.27 | 5180 | Neutral |
| 44 | 1994 | 1994-07-09 | 0.04 | 2.30 | 274 | Neutral |
| 45 | 1995 | 1995-05-21 | 1.01 | 11.76 | 11700 | El Nino |
| 46 | 1996 | 1996-04-02 | -1.00 | 9.33 | 6580 | La Nina |
| 47 | 1997 | 1997-04-24 | -0.45 | 11.03 | 9880 | Neutral |
| 48 | 1998 | 1998-05-14 | 2.40 | 11.36 | 10800 | El Nino |
| 49 | 1999 | 1999-04-20 | -1.48 | 7.03 | 3560 | La Nina |
| 50 | 2000 | 2000-04-28 | -1.46 | 2.29 | 280 | La Nina |
| 51 | 2001 | 2000-10-12 | -0.75 | 2.23 | 250 | La Nina |
| 52 | 2002 | 2002-04-09 | -0.35 | | | Neutral |
| 53 | 2004 | 2004-08-24 | 0.35 | | | Neutral |
| 54 | 2005 | 2005-04-17 | 0.66 | | | El Nino |
| 55 | 2006 | 2006-04-09 | -0.57 | | | La Nina |
| 56 | 2007 | 2007-03-26 | 0.94 | 2.28 | 260 | El Nino |
| 57 | 2008 | 2008-05-20 | -1.50 | 2.31 | 232 | La Nina |
| 58 | 2009 | 2009-04-22 | -0.55 | 2.26 | 224 | La Nina |
| 59 | 2010 | 2010-04-20 | 1.36 | 2.28 | 224 | El Nino |
| 60 | 2011 | 2011-04-02 | -1.64 | 11.30 | 11000 | La Nina |
| 61 | 2012 | 2012-04-24 | -1.09 | 2.23 | 284 | La Nina |
| 62 | 2013 | 2013-02-28 | 0.05 | 2.12 | 219 | Neutral |
| 63 | 2014 | 2014-06-09 | -0.17 | 1.92 | 172 | Neutral |
| 64 | 2015 | 2015-06-23 | 0.64 | 1.85 | 179 | El Nino |
| 65 | 2016 | 2016-07-02 | 2.57 | 2.02 | 214 | El Nino |
| 66 | 2017 | 2017-04-29 | -0.67 | 8.29 | 5270 | La Nina |
| 67 | 2018 | 2017-10-01 | -0.84 | 2.17 | 242 | La Nina |
| 68 | 2019 | 2019-05-31 | 0.90 | 8.18 | 5110 | El Nino |
