Click on column header to sort on the field| # | Water Year | Observed Date | Index | Stage | Discharge | Designation |
| 1 | 1951 | 1951-05-14 | -0.60 | 6.80 | 6880 | La Nina |
| 2 | 1952 | 1952-05-01 | 1.04 | 6.96 | 7140 | El Nino |
| 3 | 1953 | 1953-05-21 | 0.04 | 6.50 | 6400 | Neutral |
| 4 | 1954 | 1954-05-21 | 0.84 | 7.94 | 8300 | El Nino |
| 5 | 1955 | 1955-06-14 | -0.73 | 7.48 | 7570 | La Nina |
| 6 | 1956 | 1956-05-26 | -1.67 | 8.64 | 9690 | La Nina |
| 7 | 1957 | 1957-05-20 | -0.43 | 7.99 | 8540 | Neutral |
| 8 | 1958 | 1958-05-26 | 1.53 | 6.89 | 6680 | El Nino |
| 9 | 1959 | 1959-06-07 | 0.50 | 6.87 | 6920 | Neutral |
| 10 | 1960 | 1960-05-21 | 0.05 | 6.84 | 6840 | Neutral |
| 11 | 1961 | 1961-06-07 | 0.12 | 8.36 | 9390 | Neutral |
| 12 | 1962 | 1962-05-29 | -0.19 | 6.34 | 6130 | Neutral |
| 13 | 1963 | 1963-05-28 | -0.31 | 5.67 | 5190 | Neutral |
| 14 | 1964 | 1964-06-08 | 1.37 | 7.05 | 7200 | El Nino |
| 15 | 1965 | 1965-05-31 | -0.82 | 6.41 | 6240 | La Nina |
| 16 | 1966 | 1966-05-13 | 1.97 | 5.85 | 5490 | El Nino |
| 17 | 1967 | 1967-06-10 | -0.18 | | | Neutral |
| 18 | 1968 | 1968-06-05 | -0.34 | 5.84 | 5430 | Neutral |
| 19 | 1969 | 1969-05-30 | 0.73 | 7.57 | 7980 | El Nino |
| 20 | 1970 | 1970-05-28 | 0.81 | 6.08 | 5750 | El Nino |
| 21 | 1971 | 1971-05-14 | -0.86 | 7.52 | 7900 | La Nina |
| 22 | 1972 | 1972-06-02 | -0.96 | 7.60 | 8080 | La Nina |
| 23 | 1973 | 1973-05-21 | 2.09 | 5.14 | 4480 | El Nino |
| 24 | 1974 | 1974-06-19 | -1.95 | 8.81 | 10300 | La Nina |
| 25 | 1975 | 1975-06-06 | -0.75 | 7.13 | 7340 | La Nina |
| 26 | 1976 | 1976-05-14 | -1.55 | 6.62 | 6660 | La Nina |
| 27 | 1977 | 1976-10-15 | 0.86 | 3.38 | 2430 | El Nino |
| 28 | 1978 | 1978-05-24 | 0.81 | 6.42 | 6320 | El Nino |
| 29 | 1979 | 1979-05-07 | -0.08 | 5.77 | 5360 | Neutral |
| 30 | 1980 | 1980-05-10 | 0.52 | 6.95 | 7040 | El Nino |
| 31 | 1981 | 1981-05-28 | 0.11 | 5.86 | 5560 | Neutral |
| 32 | 1982 | 1982-03-27 | -0.15 | 6.99 | 7330 | Neutral |
| 33 | 1983 | 1983-05-31 | 2.18 | 7.04 | 7330 | El Nino |
| 34 | 1984 | 1984-06-21 | -1.00 | 6.40 | 6240 | La Nina |
| 35 | 1985 | 1985-05-26 | -0.92 | 6.07 | 5750 | La Nina |
| 36 | 1986 | 1986-06-01 | -0.27 | 5.20 | 4530 | Neutral |
| 37 | 1987 | 1987-05-11 | 1.14 | 5.78 | 5330 | El Nino |
| 38 | 1988 | 1988-04-24 | 1.25 | 4.90 | 4220 | El Nino |
| 39 | 1989 | 1989-05-11 | -1.80 | 6.47 | 6430 | La Nina |
| 40 | 1990 | 1990-06-02 | -0.16 | 6.84 | 7000 | Neutral |
| 41 | 1991 | 1991-05-22 | 0.40 | 6.77 | 6890 | Neutral |
| 42 | 1992 | 1992-05-09 | 1.21 | | | El Nino |
| 43 | 1993 | 1993-05-19 | -0.28 | 5.81 | 5490 | Neutral |
| 44 | 1994 | 1994-04-25 | 0.04 | 5.23 | 4690 | Neutral |
| 45 | 1995 | 1995-05-20 | 1.01 | | | El Nino |
| 46 | 1996 | 1996-05-23 | -1.00 | 6.57 | 6590 | La Nina |
| 47 | 1997 | 1997-05-18 | -0.45 | 9.13 | 10800 | Neutral |
| 48 | 1998 | 1998-05-28 | 2.40 | 7.73 | 8400 | El Nino |
| 49 | 1999 | 1999-05-30 | -1.48 | | | La Nina |
| 50 | 2000 | 2000-05-24 | -1.46 | | | La Nina |
| 51 | 2001 | 2001-05-16 | -0.75 | 4.55 | 3810 | La Nina |
| 52 | 2002 | 2002-06-01 | -0.35 | | | Neutral |
| 53 | 2003 | 2003-06-02 | 1.31 | 6.01 | 5770 | El Nino |
| 54 | 2004 | 2004-05-06 | 0.35 | | | Neutral |
| 55 | 2005 | 2005-05-20 | 0.66 | 4.34 | 3550 | El Nino |
| 56 | 2006 | 2006-05-24 | -0.57 | 7.76 | 8450 | La Nina |
| 57 | 2007 | 2007-03-26 | 0.94 | 5.65 | 5260 | El Nino |
| 58 | 2008 | 2008-03-22 | -1.50 | 8.01 | 8860 | La Nina |
| 59 | 2009 | 2009-06-02 | -0.55 | 5.78 | 5440 | La Nina |
| 60 | 2010 | 2010-06-05 | 1.36 | 6.40 | 6340 | El Nino |
| 61 | 2011 | 2011-05-27 | -1.64 | 7.90 | 8680 | La Nina |
| 62 | 2012 | 2012-06-07 | -1.09 | 7.67 | 8300 | La Nina |
| 63 | 2013 | 2013-05-14 | 0.05 | 6.48 | 6460 | Neutral |
| 64 | 2014 | 2014-05-26 | -0.17 | 6.39 | 6320 | Neutral |
| 65 | 2015 | 2015-02-10 | 0.64 | 4.76 | 4070 | El Nino |
| 66 | 2016 | 2016-05-10 | 2.57 | 5.49 | 5040 | El Nino |
| 67 | 2017 | 2017-05-14 | -0.67 | 6.58 | 6610 | La Nina |
