Click on column header to sort on the field| # | Water Year | Observed Date | Index | Stage | Discharge | Designation |
| 1 | 1951 | 1951-05-28 | -0.60 | 4.24 | 2210 | La Nina |
| 2 | 1952 | 1952-06-07 | 1.04 | 4.90 | 2960 | El Nino |
| 3 | 1953 | 1953-06-19 | 0.04 | 4.38 | 2400 | Neutral |
| 4 | 1954 | 1954-06-26 | 0.84 | 6.00 | 3960 | El Nino |
| 5 | 1955 | 1955-06-12 | -0.73 | 3.78 | 1740 | La Nina |
| 6 | 1956 | 1956-05-24 | -1.67 | 5.16 | 3410 | La Nina |
| 7 | 1957 | 1957-06-06 | -0.43 | 5.27 | 3570 | Neutral |
| 8 | 1958 | 1958-05-24 | 1.53 | 5.36 | 3280 | El Nino |
| 9 | 1959 | 1959-06-14 | 0.50 | 3.77 | 1670 | Neutral |
| 10 | 1960 | 1960-06-03 | 0.05 | 3.71 | 1550 | Neutral |
| 11 | 1961 | 1961-06-10 | 0.12 | 3.64 | 1460 | Neutral |
| 12 | 1962 | 1962-06-21 | -0.19 | 4.18 | 2110 | Neutral |
| 13 | 1963 | 1963-06-15 | -0.31 | 4.68 | 2580 | Neutral |
| 14 | 1964 | 1964-06-27 | 1.37 | 4.29 | 2050 | El Nino |
| 15 | 1965 | 1965-06-12 | -0.82 | 5.73 | 3450 | La Nina |
| 16 | 1966 | 1966-05-29 | 1.97 | 3.37 | 1150 | El Nino |
| 17 | 1967 | 1967-05-25 | -0.18 | 6.02 | 4420 | Neutral |
| 18 | 1968 | 1968-06-20 | -0.34 | 4.21 | 2110 | Neutral |
| 19 | 1969 | 1969-05-27 | 0.73 | 4.96 | 3140 | El Nino |
| 20 | 1970 | 1970-06-28 | 0.81 | 5.03 | 3240 | El Nino |
| 21 | 1971 | 1971-06-23 | -0.86 | 4.88 | 2810 | La Nina |
| 22 | 1972 | 1972-06-08 | -0.96 | 5.01 | 3230 | La Nina |
| 23 | 1973 | 1973-05-19 | 2.09 | 4.08 | 1990 | El Nino |
| 24 | 1974 | 1974-06-16 | -1.95 | 5.41 | 3510 | La Nina |
| 25 | 1975 | 1975-06-07 | -0.75 | 5.24 | 3310 | La Nina |
| 26 | 1976 | 1976-05-28 | -1.55 | 4.05 | 1860 | La Nina |
| 27 | 1977 | 1977-06-08 | 0.86 | 3.89 | 1700 | El Nino |
| 28 | 1978 | 1978-06-10 | 0.81 | 4.36 | 2310 | El Nino |
| 29 | 1979 | 1979-05-24 | -0.08 | | | Neutral |
| 30 | 1980 | 1980-07-03 | 0.52 | 4.26 | 2080 | El Nino |
| 31 | 1981 | 1981-06-09 | 0.11 | 4.92 | 2960 | Neutral |
| 32 | 1982 | 1982-06-22 | -0.15 | 5.47 | 2930 | Neutral |
| 33 | 1983 | 1983-06-11 | 2.18 | 5.52 | 3720 | El Nino |
| 34 | 1984 | 1984-07-29 | -1.00 | 5.17 | 3270 | La Nina |
| 35 | 1985 | 1985-09-07 | -0.92 | 3.34 | 1200 | La Nina |
| 36 | 1986 | 1986-06-04 | -0.27 | 5.48 | 3860 | Neutral |
| 37 | 1987 | 1987-05-17 | 1.14 | 3.99 | 1790 | El Nino |
| 38 | 1988 | 1988-06-05 | 1.25 | 3.53 | 1360 | El Nino |
| 39 | 1989 | 1989-06-16 | -1.80 | 3.61 | 1440 | La Nina |
| 40 | 1990 | 1990-06-10 | -0.16 | 4.25 | 2220 | Neutral |
| 41 | 1991 | 1991-06-12 | 0.40 | 4.48 | 2530 | Neutral |
| 42 | 1992 | 1992-05-08 | 1.21 | 2.63 | 709 | El Nino |
| 43 | 1993 | 1993-05-21 | -0.28 | 4.39 | 2440 | Neutral |
| 44 | 1994 | 1994-05-13 | 0.04 | 3.19 | 1210 | Neutral |
| 45 | 1995 | 1995-07-10 | 1.01 | 5.17 | 3690 | El Nino |
| 46 | 1996 | 1996-06-10 | -1.00 | 4.62 | 2940 | La Nina |
| 47 | 1997 | 1997-06-05 | -0.45 | 4.81 | 3160 | Neutral |
| 48 | 1998 | 1998-06-26 | 2.40 | 4.20 | 2460 | El Nino |
| 49 | 1999 | 1999-06-17 | -1.48 | 4.71 | 3220 | La Nina |
| 50 | 2000 | 2000-05-24 | -1.46 | 3.38 | 1470 | La Nina |
| 51 | 2001 | 2001-05-15 | -0.75 | 2.75 | 927 | La Nina |
| 52 | 2002 | 2002-06-01 | -0.35 | 3.62 | 1730 | Neutral |
| 53 | 2003 | 2003-05-31 | 1.31 | | | El Nino |
| 54 | 2004 | 2004-06-06 | 0.35 | | | Neutral |
| 55 | 2005 | 2005-05-19 | 0.66 | 4.81 | 3380 | El Nino |
| 56 | 2006 | 2006-05-21 | -0.57 | 5.68 | 5010 | La Nina |
| 57 | 2007 | 2007-05-13 | 0.94 | 2.96 | 1080 | El Nino |
| 58 | 2008 | 2008-05-19 | -1.50 | 3.58 | 1750 | La Nina |
| 59 | 2009 | 2009-06-20 | -0.55 | 4.13 | 2360 | La Nina |
| 60 | 2010 | 2010-06-07 | 1.36 | 4.57 | 3000 | El Nino |
| 61 | 2011 | 2011-06-24 | -1.64 | 4.34 | 2650 | La Nina |
| 62 | 2012 | 2012-04-27 | -1.09 | 4.36 | 2680 | La Nina |
| 63 | 2013 | 2013-06-11 | 0.05 | 3.32 | 1410 | Neutral |
| 64 | 2014 | 2014-05-28 | -0.17 | 3.03 | 1140 | Neutral |
| 65 | 2015 | 2015-06-10 | 0.64 | 3.45 | 1540 | El Nino |
| 66 | 2016 | 2016-06-06 | 2.57 | 4.01 | 2200 | El Nino |
| 67 | 2017 | 2017-06-05 | -0.67 | 5.28 | 4220 | La Nina |
| 68 | 2018 | 2018-05-26 | -0.84 | 4.15 | 2520 | La Nina |
| 69 | 2019 | 2019-06-07 | 0.90 | 4.40 | 2740 | El Nino |
