Click on column header to sort on the field| # | Water Year | Observed Date | Index | Stage | Discharge | Designation |
| 1 | 1951 | 1950-11-02 | -0.60 | 10.71 | 15100 | La Nina |
| 2 | 1952 | 1952-02-03 | 1.04 | 11.56 | 17900 | El Nino |
| 3 | 1953 | 1953-01-18 | 0.04 | 15.80 | 34200 | Neutral |
| 4 | 1954 | 1953-11-22 | 0.84 | 13.85 | 26400 | El Nino |
| 5 | 1955 | 1954-12-30 | -0.73 | 13.78 | 26100 | La Nina |
| 6 | 1956 | 1955-11-26 | -1.67 | 17.55 | 42200 | La Nina |
| 7 | 1957 | 1956-12-11 | -0.43 | 15.33 | 32300 | Neutral |
| 8 | 1958 | 1958-04-20 | 1.53 | 15.35 | 32400 | El Nino |
| 9 | 1959 | 1958-12-11 | 0.50 | 12.43 | 21000 | Neutral |
| 10 | 1960 | 1959-10-22 | 0.05 | 12.60 | 21600 | Neutral |
| 11 | 1961 | 1960-11-24 | 0.12 | 16.20 | 35900 | Neutral |
| 12 | 1962 | 1962-04-06 | -0.19 | 12.35 | 20700 | Neutral |
| 13 | 1963 | 1962-11-20 | -0.31 | 14.84 | 30400 | Neutral |
| 14 | 1964 | 1964-01-25 | 1.37 | 12.50 | 22000 | El Nino |
| 15 | 1965 | 1964-12-22 | -0.82 | 22.30 | 84400 | La Nina |
| 16 | 1966 | 1966-01-14 | 1.97 | 9.26 | 14000 | El Nino |
| 17 | 1985 | 1984-11-03 | -0.92 | 15.93 | 19600 | La Nina |
| 18 | 1986 | 1986-02-23 | -0.27 | 20.89 | 52700 | Neutral |
| 19 | 1987 | 1987-02-01 | 1.14 | 15.37 | 17000 | El Nino |
| 20 | 1988 | 1987-12-10 | 1.25 | 17.57 | 30500 | El Nino |
| 21 | 1989 | 1989-01-10 | -1.80 | | | La Nina |
| 22 | 1990 | 1990-04-27 | -0.16 | 17.45 | 27700 | Neutral |
| 23 | 1991 | 1991-01-15 | 0.40 | 17.20 | 26300 | Neutral |
| 24 | 1992 | 1991-12-06 | 1.21 | 17.03 | 25400 | El Nino |
| 25 | 1993 | 1992-11-21 | -0.28 | 16.40 | 22100 | Neutral |
| 26 | 1994 | 1994-02-24 | 0.04 | 14.92 | 15400 | Neutral |
| 27 | 1995 | 1994-10-31 | 1.01 | 18.33 | 33100 | El Nino |
| 28 | 1996 | 1996-02-07 | -1.00 | 22.59 | 68600 | La Nina |
| 29 | 1997 | 1996-12-25 | -0.45 | 17.43 | 27600 | Neutral |
| 30 | 1998 | 1997-10-30 | 2.40 | 15.78 | 19200 | El Nino |
| 31 | 1999 | 1998-12-28 | -1.48 | 19.38 | 40500 | La Nina |
| 32 | 2000 | 1999-11-25 | -1.46 | 21.44 | 57600 | La Nina |
| 33 | 2001 | 2001-04-30 | -0.75 | 12.83 | 8500 | La Nina |
| 34 | 2002 | 2002-04-14 | -0.35 | 15.91 | 19800 | Neutral |
| 35 | 2003 | 2003-01-31 | 1.31 | 17.44 | 27600 | El Nino |
| 36 | 2004 | 2004-01-29 | 0.35 | 17.19 | 26200 | Neutral |
| 37 | 2005 | 2004-12-11 | 0.66 | 13.43 | 10300 | El Nino |
| 38 | 2006 | 2006-01-10 | -0.57 | 16.30 | 21600 | La Nina |
| 39 | 2007 | 2006-11-07 | 0.94 | 19.47 | 41200 | El Nino |
| 40 | 2008 | 2007-12-04 | -1.50 | 14.36 | 14400 | La Nina |
| 41 | 2009 | 2009-01-02 | -0.55 | 21.62 | 45800 | La Nina |
| 42 | 2010 | 2010-06-02 | 1.36 | 14.02 | 13700 | El Nino |
| 43 | 2011 | 2011-01-16 | -1.64 | 21.85 | 61700 | La Nina |
| 44 | 2012 | 2011-12-30 | -1.09 | 17.65 | 30800 | La Nina |
| 45 | 2013 | 2012-10-29 | 0.05 | 14.37 | 14500 | Neutral |
| 46 | 2014 | 2013-12-02 | -0.17 | 17.80 | 31700 | Neutral |
| 47 | 2015 | 2014-12-21 | 0.64 | 16.41 | 23900 | El Nino |
| 48 | 2016 | 2015-12-07 | 2.57 | 16.84 | 26100 | El Nino |
| 49 | 2017 | 2017-03-09 | -0.67 | 15.06 | 17400 | La Nina |
| 50 | 2018 | 2017-10-22 | -0.84 | 18.48 | 35900 | La Nina |
| 51 | 2019 | 2019-04-08 | 0.90 | 16.24 | 23000 | El Nino |
