1948 2021 1948 0.454 0.047 -0.135 -0.469 -0.950 -1.004 -1.109 -0.910 -0.415 -0.312 -0.354 -0.304 1949 0.018 0.049 0.251 0.556 0.440 -0.130 -0.232 -0.457 -0.498 -0.087 0.119 0.283 1950 0.624 0.445 0.382 0.311 0.124 0.213 0.293 0.316 0.564 0.690 0.993 1.239 1951 1.315 1.461 1.590 1.457 1.615 1.627 1.521 1.493 1.255 0.799 0.492 0.294 1952 0.168 -0.293 -0.368 -0.374 -0.567 -0.718 -0.702 -0.703 -0.704 -0.449 -0.566 -0.167 1953 -0.027 0.150 0.325 0.550 0.428 0.532 0.409 0.196 0.120 0.128 -0.426 -0.537 1954 -0.655 -1.250 -1.788 -1.702 -1.839 -1.800 -1.338 -0.982 -0.607 -0.464 -0.189 0.081 1955 0.316 0.489 0.619 0.358 0.399 0.319 0.045 0.147 0.346 0.411 0.545 0.840 1956 1.092 1.119 0.977 0.993 0.983 0.723 0.707 0.767 0.661 0.341 -0.035 -0.111 1957 0.090 0.260 0.651 1.410 1.734 1.620 1.606 1.414 0.985 0.631 0.137 -0.270 1958 -0.639 -0.523 -0.566 -0.258 -0.005 -0.042 -0.231 -0.244 -0.337 -0.593 -0.503 -0.599 1959 -0.468 -0.319 -0.130 0.102 0.094 -0.246 -0.387 -0.384 -0.307 -0.109 0.184 0.363 1960 0.438 0.095 -0.051 -0.262 -0.521 -0.602 -0.409 -0.493 -0.487 -0.507 -0.357 -0.076 1961 0.146 0.325 0.468 0.230 -0.237 -0.396 -0.583 -0.489 -0.312 0.059 0.371 0.618 1962 0.329 -0.102 -0.282 -0.710 -0.999 -0.853 -0.498 -0.610 -0.537 -0.482 -0.321 -0.306 1963 -0.127 -0.111 0.063 0.003 -0.100 -0.251 -0.173 -0.367 -0.625 -0.722 -0.930 -1.273 1964 -1.342 -1.304 -1.543 -1.424 -1.178 -0.993 -0.526 0.019 0.473 0.781 0.909 0.879 1965 1.119 1.393 1.838 2.175 2.209 2.019 1.484 0.758 0.214 -0.107 -0.336 -0.560 1966 -1.127 -1.485 -1.806 -2.177 -2.362 -2.009 -1.867 -1.699 -1.408 -1.178 -0.774 -0.224 1967 -0.079 -0.022 -0.140 -0.461 -0.974 -1.254 -1.449 -1.543 -1.674 -1.722 -1.619 -1.545 1968 -1.335 -1.172 -1.108 -1.245 -1.197 -1.070 -0.690 -0.534 -0.441 -0.398 -0.785 -1.508 1969 -1.509 -1.156 -0.713 0.053 0.623 0.491 0.191 -0.100 -0.463 -0.500 -0.302 -0.348 1970 -0.773 -1.024 -1.386 -1.722 -1.993 -1.865 -1.723 -1.283 -0.958 -0.276 0.231 0.454 1971 0.566 0.862 0.691 0.400 0.397 0.211 0.100 0.097 0.145 0.087 0.221 0.259 1972 0.447 0.575 0.661 0.851 1.134 1.520 1.659 1.642 1.481 1.186 0.600 0.122 1973 -0.294 -0.675 -1.108 -1.220 -1.119 -0.855 -0.561 -0.038 0.501 1.149 1.717 1.970 1974 2.145 2.129 1.962 1.728 1.702 1.502 1.229 0.890 0.825 0.636 0.479 0.361 1975 0.600 0.749 0.855 0.949 1.337 1.461 1.503 1.734 1.933 1.983 1.946 1.908 1976 1.725 1.727 1.697 1.813 2.058 2.354 2.206 1.881 1.352 0.809 0.303 0.066 1977 -0.164 -0.266 -0.445 -0.657 -0.907 -1.185 -1.527 -1.733 -1.947 -2.106 -1.913 -1.636 1978 -1.571 -1.284 -1.000 -0.984 -0.905 -0.786 -0.732 -0.616 -0.349 -0.085 0.022 -0.188 1979 -0.343 -0.309 -0.347 -0.187 0.067 0.333 0.440 0.462 0.302 0.007 -0.285 -0.758 1980 -1.073 -1.201 -1.039 -0.996 -1.039 -1.038 -1.018 -1.135 -1.284 -1.290 -1.393 -1.425 1981 -1.350 -1.094 -0.835 -0.558 -0.496 -0.464 -0.533 -0.605 -0.708 -0.617 -0.621 -0.708 1982 -1.067 -1.466 -1.922 -2.359 -2.364 -1.924 -1.418 -0.811 0.196 0.981 1.440 1.683 1983 1.822 1.991 2.282 2.929 3.734 4.227 4.143 3.867 3.183 2.462 1.814 1.411 1984 1.080 0.907 0.603 0.369 0.148 -0.183 -0.516 -0.536 -0.277 0.186 0.207 0.255 1985 0.366 0.147 -0.506 -0.572 -0.762 -1.244 -1.452 -1.337 -1.499 -1.379 -0.950 -0.623 1986 -0.564 -0.458 -0.515 -0.968 -1.395 -1.529 -1.727 -1.860 -1.769 -1.689 -1.616 -1.322 1987 -0.980 -0.584 -0.221 -0.192 -0.289 -0.497 -0.835 -1.008 -1.191 -1.283 -1.465 -1.566 1988 -1.718 -1.557 -1.350 -1.229 -1.016 -0.911 -0.771 -0.447 0.274 0.875 1.614 2.362 1989 2.629 2.577 2.039 1.436 0.658 0.103 -0.400 -0.420 -0.404 -0.559 -0.839 -1.019 1990 -1.314 -1.647 -1.634 -1.573 -1.714 -1.810 -1.880 -2.165 -2.399 -2.380 -2.437 -2.357 1991 -2.109 -2.090 -2.002 -1.793 -1.766 -1.843 -1.672 -1.706 -1.655 -1.657 -1.664 -1.625 1992 -1.363 -0.945 -0.480 -0.278 -0.363 -0.564 -0.992 -1.276 -1.317 -1.219 -1.146 -0.878 1993 -0.819 -0.668 -0.417 -0.267 -0.481 -0.629 -0.854 -1.028 -1.186 -1.170 -1.162 -1.005 1994 -1.203 -1.399 -1.611 -1.847 -2.339 -2.750 -2.800 -2.609 -2.500 -2.194 -1.657 -1.493 1995 -1.726 -1.911 -2.190 -2.296 -2.263 -2.004 -1.533 -1.006 -0.569 -0.342 -0.188 -0.028 1996 0.036 -0.373 -0.600 -0.911 -1.525 -1.984 -2.020 -1.961 -1.890 -1.730 -1.662 -1.505 1997 -1.345 -1.149 -0.538 0.297 1.055 1.783 2.510 2.833 2.944 3.090 3.037 2.858 1998 2.716 2.870 3.045 2.983 3.164 3.210 2.762 2.450 2.368 2.262 2.225 2.475 1999 2.451 2.095 1.700 1.138 0.449 -0.101 -0.311 -0.369 -0.200 0.152 0.477 1.065 2000 1.452 1.827 1.857 1.494 0.783 0.170 -0.465 -0.707 -0.798 -0.377 -0.097 0.362 2001 0.785 1.250 0.853 0.239 -0.568 -1.504 -2.452 -2.846 -2.858 -2.637 -2.674 -2.370 2002 -1.780 -1.343 -1.287 -1.326 -1.663 -2.335 -2.871 -3.001 -2.878 -2.546 -2.413 -2.311 2003 -2.523 -2.644 -2.910 -2.995 -3.040 -2.895 -2.723 -2.412 -2.082 -1.738 -1.596 -1.522 2004 -1.600 -1.571 -1.913 -2.272 -2.637 -2.999 -3.376 -3.253 -2.993 -2.731 -2.505 -2.393 2005 -2.598 -2.605 -2.408 -2.383 -2.284 -1.897 -1.885 -2.124 -1.999 -1.668 -1.264 -0.475 2006 0.151 0.067 -0.099 -0.601 -1.170 -1.501 -1.289 -1.087 -0.991 -1.131 -1.184 -1.204 2007 -1.594 -1.834 -2.022 -2.341 -2.655 -2.697 -2.565 -2.305 -1.865 -1.291 -0.302 0.850 2008 1.836 2.404 2.671 2.493 2.015 1.613 1.429 1.173 0.955 0.839 0.787 0.779 2009 0.793 0.753 0.514 0.107 -0.284 -0.476 -0.848 -1.309 -1.687 -2.025 -2.418 -2.571 2010 -2.649 -2.398 -2.127 -1.750 -1.548 -0.957 -0.564 -0.218 0.113 0.681 1.167 1.530 2011 1.523 1.577 1.546 1.271 0.844 0.675 0.387 0.168 -0.029 0.070 0.363 0.844 2012 1.082 1.479 1.613 1.596 1.191 0.601 -0.046 -0.718 -1.412 -1.740 -1.626 -1.515 2013 -1.149 -0.999 -1.167 -1.528 -1.929 -2.379 -2.398 -2.185 -1.936 -1.583 -1.043 -1.077 2014 -1.358 -1.503 -1.408 -1.483 -1.122 -0.636 -0.406 -0.499 -0.813 -1.238 -1.715 -2.117 2015 -2.476 -2.435 -1.984 -1.434 -0.702 -0.198 0.100 0.112 -0.139 -0.404 -0.676 -1.188 2016 -1.630 -1.802 -1.946 -1.978 -1.763 -1.441 -0.968 -0.508 -0.101 0.324 0.690 1.097 2017 1.447 1.465 1.268 0.592 -0.267 -1.150 -1.575 -1.925 -1.847 -1.735 -1.548 -1.264 2018 -1.134 -1.260 -1.320 -1.650 -1.978 -2.118 -2.089 -2.159 -1.979 -1.890 -1.734 -1.700 2019 -1.725 -1.774 -1.892 -2.226 -2.535 -2.750 -3.045 -3.344 -3.286 -3.001 -2.857 -2.549 2020 -2.208 -2.029 -1.811 -1.756 -1.891 -1.855 -1.720 -1.586 -1.090 -0.441 0.165 0.571 2021 0.701 0.379 -0.007 -0.422 -0.642 -0.817 -0.521 -0.190 -0.198 -0.287 -99.990 -99.990 -99.99 TNI Nina 1.2-Nino4 standardized HadSST1.1 until Nov 1981 and and NCEP NOAA OI after Reference: Indices of El Nino Evolution Kevin E. Trenberth, and David P. Stepaniak J. Climate, 14, 1697-1701. From NOAA PSL: See url for latest info https://psl.noaa.gov/data/climateindices/List/#TNI