Click on column header to sort on the field| # | Water Year | Observed Date | Index | Stage | Discharge | Designation |
| 1 | 1951 | 1951-02-10 | -0.60 | 8.64 | 3280 | La Nina |
| 2 | 1952 | 1951-10-19 | 1.04 | 8.20 | 2920 | El Nino |
| 3 | 1953 | 1953-01-23 | 0.04 | 7.77 | 2580 | Neutral |
| 4 | 1954 | 1954-02-21 | 0.84 | 8.08 | 2770 | El Nino |
| 5 | 1955 | 1954-11-19 | -0.73 | 9.99 | 6100 | La Nina |
| 6 | 1956 | 1955-11-04 | -1.67 | 10.45 | 7740 | La Nina |
| 7 | 1957 | 1956-12-09 | -0.43 | 7.47 | 3060 | Neutral |
| 8 | 1958 | 1958-02-25 | 1.53 | 6.65 | 2300 | El Nino |
| 9 | 1959 | 1959-04-29 | 0.50 | 7.80 | 3980 | Neutral |
| 10 | 1960 | 1959-11-20 | 0.05 | 6.63 | 2680 | Neutral |
| 11 | 1961 | 1961-01-15 | 0.12 | 8.32 | 4610 | Neutral |
| 12 | 1962 | 1961-12-01 | -0.19 | 4.22 | 715 | Neutral |
| 13 | 1963 | 1962-12-16 | -0.31 | 7.50 | 3570 | Neutral |
| 14 | 1964 | 1964-01-01 | 1.37 | 4.13 | 662 | El Nino |
| 15 | 1965 | 1964-11-30 | -0.82 | 4.95 | 1180 | La Nina |
| 16 | 1966 | 1966-01-13 | 1.97 | 5.47 | 1590 | El Nino |
| 17 | 1967 | 1966-12-13 | -0.18 | 5.66 | 1740 | Neutral |
| 18 | 1968 | 1968-01-19 | -0.34 | 5.70 | 1780 | Neutral |
| 19 | 1969 | 1969-06-10 | 0.73 | 6.76 | 2780 | El Nino |
| 20 | 1970 | 1970-04-09 | 0.81 | 4.23 | 713 | El Nino |
| 21 | 1971 | 1971-06-27 | -0.86 | 5.67 | 1750 | La Nina |
| 22 | 1972 | 1972-03-05 | -0.96 | 5.93 | 1990 | La Nina |
| 23 | 1973 | 1972-12-26 | 2.09 | 5.86 | 1920 | El Nino |
| 24 | 1974 | 1974-01-16 | -1.95 | 7.95 | 4100 | La Nina |
| 25 | 1975 | 1974-12-21 | -0.75 | 4.94 | 1250 | La Nina |
| 26 | 1976 | 1975-12-04 | -1.55 | 8.77 | 5540 | La Nina |
| 27 | 1977 | 1977-03-07 | 0.86 | 4.23 | 858 | El Nino |
| 28 | 1978 | 1977-11-01 | 0.81 | 4.55 | 1060 | El Nino |
| 29 | 1979 | 1979-03-04 | -0.08 | 4.69 | 1050 | Neutral |
| 30 | 1980 | 1979-12-19 | 0.52 | 7.50 | 3800 | El Nino |
| 31 | 1981 | 1980-12-26 | 0.11 | 5.85 | 2020 | Neutral |
| 32 | 1982 | 1981-12-05 | -0.15 | 4.77 | 1120 | Neutral |
| 33 | 1983 | 1982-12-03 | 2.18 | 4.82 | 1160 | El Nino |
| 34 | 1984 | 1983-11-15 | -1.00 | 5.52 | 1720 | La Nina |
| 35 | 1985 | 1984-11-28 | -0.92 | 4.48 | 908 | La Nina |
| 36 | 1986 | 1986-01-18 | -0.27 | 6.08 | 2220 | Neutral |
| 37 | 1987 | 1986-11-23 | 1.14 | 5.51 | 1710 | El Nino |
| 38 | 1988 | 1988-01-14 | 1.25 | 4.99 | 1260 | El Nino |
| 39 | 1989 | 1989-04-05 | -1.80 | 4.26 | 700 | La Nina |
| 40 | 1990 | 1989-12-04 | -0.16 | | | Neutral |
| 41 | 1991 | 1990-11-24 | 0.40 | 8.40 | 4880 | Neutral |
| 42 | 1992 | 1991-12-05 | 1.21 | 5.50 | 1700 | El Nino |
| 43 | 1993 | 1993-01-25 | -0.28 | 10.45 | 600 | Neutral |
| 44 | 1994 | 1993-12-10 | 0.04 | | | Neutral |
| 45 | 1995 | 1994-12-20 | 1.01 | 7.87 | 4480 | El Nino |
| 46 | 1996 | 1995-12-14 | -1.00 | 8.09 | 4300 | La Nina |
| 47 | 1997 | 1997-03-19 | -0.45 | 7.54 | 3570 | Neutral |
| 48 | 1998 | 1997-10-30 | 2.40 | 5.68 | 1610 | El Nino |
| 49 | 1999 | 1999-02-24 | -1.48 | 6.69 | 2580 | La Nina |
| 50 | 2000 | 1999-12-15 | -1.46 | 6.24 | 2120 | La Nina |
| 51 | 2001 | 2000-12-16 | -0.75 | 3.91 | 468 | La Nina |
| 52 | 2002 | 2001-12-16 | -0.35 | 7.10 | 3030 | Neutral |
| 53 | 2003 | 2003-01-02 | 1.31 | 5.17 | 1250 | El Nino |
| 54 | 2004 | 2003-10-20 | 0.35 | 7.37 | 3750 | Neutral |
| 55 | 2005 | 2004-12-10 | 0.66 | 5.79 | 1950 | El Nino |
| 56 | 2006 | 2006-01-13 | -0.57 | 7.34 | 3710 | La Nina |
| 57 | 2007 | 2006-11-06 | 0.94 | 5.75 | 1910 | El Nino |
| 58 | 2008 | 2007-12-03 | -1.50 | 8.71 | 5680 | La Nina |
| 59 | 2009 | 2009-01-08 | -0.55 | 7.28 | 3630 | La Nina |
| 60 | 2010 | 2009-11-22 | 1.36 | 8.32 | 5080 | El Nino |
| 61 | 2011 | 2010-12-12 | -1.64 | 8.00 | 4610 | La Nina |
| 62 | 2012 | 2011-11-23 | -1.09 | 6.13 | 2290 | La Nina |
| 63 | 2013 | 2012-11-19 | 0.05 | 7.28 | 3630 | Neutral |
| 64 | 2014 | 2014-03-06 | -0.17 | 5.48 | 1660 | Neutral |
| 65 | 2015 | 2015-02-06 | 0.64 | 6.06 | 2220 | El Nino |
| 66 | 2016 | 2015-12-08 | 2.57 | 8.39 | 4720 | El Nino |
| 67 | 2017 | 2016-11-24 | -0.67 | 5.81 | 1950 | La Nina |
| 68 | 2018 | 2017-11-22 | -0.84 | 7.41 | 3540 | La Nina |
| 69 | 2019 | 2018-11-27 | 0.90 | 5.95 | 2070 | El Nino |
