Click on column header to sort on the field| # | Water Year | Observed Date | Index | Stage | Discharge | Designation |
| 1 | 1951 | 1951-02-09 | -0.60 | 21.86 | 10300 | La Nina |
| 2 | 1952 | 1952-02-04 | 1.04 | 17.28 | 6900 | El Nino |
| 3 | 1953 | 1953-01-23 | 0.04 | 18.41 | 7690 | Neutral |
| 4 | 1954 | 1954-02-19 | 0.84 | 19.20 | 8240 | El Nino |
| 5 | 1955 | 1955-02-08 | -0.73 | 16.38 | 6270 | La Nina |
| 6 | 1956 | 1955-12-21 | -1.67 | 18.92 | 8040 | La Nina |
| 7 | 1958 | 1957-12-25 | 1.53 | 17.36 | 6950 | El Nino |
| 8 | 1959 | 1958-11-18 | 0.50 | 17.94 | 7360 | Neutral |
| 9 | 1962 | 1961-11-22 | -0.19 | 13.75 | 4650 | Neutral |
| 10 | 1963 | 1962-11-20 | -0.31 | 23.04 | 11200 | Neutral |
| 11 | 1964 | 1964-01-25 | 1.37 | 19.28 | 8300 | El Nino |
| 12 | 1965 | 1964-12-01 | -0.82 | 17.18 | 6830 | La Nina |
| 13 | 1966 | 1966-03-09 | 1.97 | 17.57 | 7100 | El Nino |
| 14 | 1967 | 1966-12-13 | -0.18 | 23.26 | 11400 | Neutral |
| 15 | 1968 | 1968-02-04 | -0.34 | 16.75 | 6520 | Neutral |
| 16 | 1969 | 1968-12-03 | 0.73 | 15.47 | 5680 | El Nino |
| 17 | 1970 | 1970-02-16 | 0.81 | 16.66 | 6460 | El Nino |
| 18 | 1971 | 1970-12-07 | -0.86 | 22.68 | 10900 | La Nina |
| 19 | 1972 | 1972-01-20 | -0.96 | 22.93 | 11100 | La Nina |
| 20 | 1973 | 1972-12-21 | 2.09 | 18.01 | 7410 | El Nino |
| 21 | 1974 | 1974-01-16 | -1.95 | 18.60 | 7920 | La Nina |
| 22 | 1975 | 1975-02-12 | -0.75 | 16.89 | 6870 | La Nina |
| 23 | 1976 | 1975-12-04 | -1.55 | 21.49 | 10500 | La Nina |
| 24 | 1977 | 1977-03-07 | 0.86 | 16.77 | 6780 | El Nino |
| 25 | 1978 | 1977-12-02 | 0.81 | 21.62 | 10700 | El Nino |
| 26 | 1979 | 1979-03-05 | -0.08 | 17.88 | 7660 | Neutral |
| 27 | 1980 | 1979-12-18 | 0.52 | 19.75 | 9160 | El Nino |
| 28 | 1981 | 1981-02-16 | 0.11 | 18.75 | 8360 | Neutral |
| 29 | 1982 | 1982-01-23 | -0.15 | 20.52 | 9780 | Neutral |
| 30 | 1983 | 1982-12-04 | 2.18 | 20.77 | 9040 | El Nino |
| 31 | 1984 | 1983-11-15 | -1.00 | 18.18 | 7230 | La Nina |
| 32 | 1985 | 1984-11-28 | -0.92 | 14.85 | 4940 | La Nina |
| 33 | 1986 | 1986-01-19 | -0.27 | 21.81 | 9850 | Neutral |
| 34 | 1987 | 1986-11-24 | 1.14 | 22.70 | 10600 | El Nino |
| 35 | 1988 | 1987-12-10 | 1.25 | 19.66 | 8200 | El Nino |
| 36 | 1989 | 1988-12-30 | -1.80 | 15.18 | 5090 | La Nina |
| 37 | 1990 | 1990-01-09 | -0.16 | 24.06 | 11700 | Neutral |
| 38 | 1991 | 1990-11-24 | 0.40 | 24.21 | 11800 | Neutral |
| 39 | 1992 | 1992-01-28 | 1.21 | 20.05 | 8480 | El Nino |
| 40 | 1993 | 1993-03-23 | -0.28 | 12.22 | 3350 | Neutral |
| 41 | 1994 | 1993-12-10 | 0.04 | 22.08 | 10100 | Neutral |
| 42 | 1995 | 1994-12-20 | 1.01 | 27.28 | 14800 | El Nino |
| 43 | 1996 | 1996-02-08 | -1.00 | 23.21 | 11000 | La Nina |
| 44 | 1997 | 1997-03-19 | -0.45 | 24.53 | 12100 | Neutral |
| 45 | 1998 | 1998-01-14 | 2.40 | 19.82 | 8310 | El Nino |
| 46 | 1999 | 1999-02-24 | -1.48 | 24.43 | 12000 | La Nina |
| 47 | 2000 | 1999-12-15 | -1.46 | 22.01 | 10100 | La Nina |
| 48 | 2001 | 2000-12-23 | -0.75 | 8.15 | 1750 | La Nina |
| 49 | 2002 | 2001-12-17 | -0.35 | 23.17 | 11000 | Neutral |
| 50 | 2003 | 2003-03-22 | 1.31 | 19.58 | 8980 | El Nino |
| 51 | 2004 | 2003-10-21 | 0.35 | 17.49 | 7390 | Neutral |
| 52 | 2005 | 2005-01-18 | 0.66 | 17.85 | 7650 | El Nino |
| 53 | 2006 | 2006-01-30 | -0.57 | 22.02 | 11000 | La Nina |
| 54 | 2007 | 2006-11-06 | 0.94 | 19.71 | 9090 | El Nino |
| 55 | 2008 | 2007-12-03 | -1.50 | 26.65 | 15100 | La Nina |
| 56 | 2009 | 2009-01-08 | -0.55 | 24.45 | 13000 | La Nina |
| 57 | 2010 | 2009-11-17 | 1.36 | 21.83 | 11300 | El Nino |
| 58 | 2011 | 2010-12-12 | -1.64 | 18.23 | 8710 | La Nina |
| 59 | 2012 | 2012-03-15 | -1.09 | 19.76 | 9780 | La Nina |
| 60 | 2013 | 2012-11-19 | 0.05 | 23.85 | 12900 | Neutral |
| 61 | 2014 | 2014-02-17 | -0.17 | 18.79 | 9100 | Neutral |
| 62 | 2015 | 2015-01-05 | 0.64 | 19.50 | 9700 | El Nino |
| 63 | 2016 | 2015-11-17 | 2.57 | 21.11 | 10800 | El Nino |
| 64 | 2017 | 2016-11-25 | -0.67 | 19.37 | 9740 | La Nina |
| 65 | 2018 | 2018-04-15 | -0.84 | 19.27 | 9480 | La Nina |
| 66 | 2019 | 2018-12-18 | 0.90 | 14.96 | 5650 | El Nino |
