1870 2023 1870 -99.990 -99.990 0.834 1.127 0.863 0.612 0.060 -0.442 -0.671 -0.719 -0.666 -0.365 1871 -0.171 -0.039 0.043 0.119 0.197 0.287 0.251 0.279 0.265 0.175 0.141 0.112 1872 -0.117 -0.128 -0.162 -0.120 -0.049 0.237 0.329 0.405 0.480 0.640 0.581 0.476 1873 0.320 0.219 -0.046 -0.030 -0.004 0.122 0.039 0.167 0.087 -0.024 -0.136 -0.126 1874 -0.075 -0.097 0.163 0.220 0.292 0.207 0.385 0.426 0.747 0.949 1.057 0.947 1875 0.705 0.630 0.529 0.562 0.532 0.576 0.386 0.266 -0.023 -0.087 -0.206 -0.303 1876 -0.417 -0.274 -0.241 -0.270 -0.197 -0.046 0.104 0.359 0.707 0.832 0.815 0.550 1877 0.194 -0.169 -0.501 -0.943 -0.967 -0.927 -0.739 -0.424 0.124 0.413 0.599 0.619 1878 0.388 0.174 -0.111 -0.560 -0.760 -0.687 -0.615 -0.355 -0.085 0.080 0.096 0.110 1879 -0.104 -0.038 -0.041 0.180 0.479 0.791 0.921 1.132 1.226 1.276 1.196 1.282 1880 1.032 0.769 0.562 0.509 0.471 0.655 0.882 0.982 1.065 0.850 0.573 0.200 1881 -0.266 -0.657 -0.800 -0.886 -0.819 -0.752 -0.618 -0.361 -0.110 -0.070 0.042 0.150 1882 0.010 -0.216 -0.391 -0.632 -0.881 -1.213 -1.162 -0.967 -0.596 -0.314 -0.161 -0.300 1883 -0.564 -0.714 -0.668 -0.408 -0.355 -0.301 -0.299 -0.257 -0.189 -0.076 0.059 0.039 1884 -0.029 -0.059 -0.127 -0.027 -0.134 -0.316 -0.485 -0.374 -0.274 0.131 0.408 0.522 1885 0.289 0.027 -0.551 -1.025 -1.287 -1.293 -1.368 -1.209 -1.013 -0.954 -1.124 -1.346 1886 -1.628 -1.765 -1.713 -1.487 -1.135 -0.693 -0.247 0.070 0.506 0.842 0.950 0.721 1887 0.479 0.320 0.183 0.192 0.311 0.415 0.389 0.272 0.233 0.252 0.319 0.138 1888 0.014 0.078 0.129 0.274 0.326 0.315 0.750 0.815 0.610 0.705 0.869 0.367 1889 0.178 0.213 0.112 0.034 0.013 -0.047 -0.143 0.082 0.327 0.782 1.589 2.200 1890 2.219 2.082 1.702 1.012 0.462 0.587 0.818 1.015 1.135 1.172 0.956 0.700 1891 0.503 0.483 0.655 0.764 0.928 0.936 0.728 0.387 0.111 -0.138 -0.072 -0.011 1892 0.056 0.188 0.123 -0.129 -0.196 -0.243 -0.282 -0.025 0.289 0.320 0.251 0.208 1893 0.132 0.171 0.447 0.774 1.121 1.352 1.481 1.689 2.027 2.073 2.183 2.270 1894 2.115 1.866 1.756 1.557 1.345 1.226 1.252 1.257 1.234 1.141 1.127 0.868 1895 0.513 0.328 0.223 0.043 0.016 0.031 -0.003 0.176 0.312 0.439 0.710 0.870 1896 0.632 0.588 0.576 0.649 0.485 0.536 0.504 0.367 0.272 0.436 0.411 0.387 1897 0.517 0.515 0.492 0.514 0.404 0.200 -0.124 -0.127 0.027 0.219 0.463 0.707 1898 0.626 0.378 0.167 -0.136 -0.085 0.124 0.108 0.323 0.729 0.953 1.155 1.558 1899 1.742 1.673 1.400 1.130 0.703 0.613 0.763 0.728 0.475 0.356 0.168 -0.051 1900 0.021 0.164 0.411 0.424 0.163 -0.196 -0.497 -0.776 -0.963 -1.139 -1.276 -1.207 1901 -1.221 -1.285 -1.291 -1.198 -1.287 -1.252 -1.105 -0.718 -0.130 0.424 1.004 1.315 1902 1.603 1.296 0.942 0.635 0.436 0.022 -0.083 0.122 0.185 0.072 -0.107 -0.596 1903 -1.285 -1.789 -1.937 -1.972 -1.627 -1.523 -1.454 -1.428 -1.164 -0.919 -0.044 0.381 1904 0.470 0.367 0.589 0.076 -0.042 0.223 0.428 0.204 0.584 0.465 0.218 -0.208 1905 -0.360 -0.871 -0.554 -0.245 -0.017 0.117 -0.029 -0.268 -0.317 -0.453 -0.493 -0.260 1906 -0.698 -1.179 -1.013 -1.117 -1.421 -1.482 -1.332 -1.297 -1.289 -0.905 -0.310 -0.032 1907 -0.035 0.081 -0.120 -0.324 -0.760 -1.138 -1.208 -1.068 -1.000 -0.812 -0.320 -0.210 1908 -0.027 -0.175 -0.301 -0.254 -0.378 -0.554 -0.525 -0.229 -0.334 -0.113 0.187 0.442 1909 0.490 0.419 0.019 -0.361 -0.497 -0.662 -0.772 -0.352 -0.017 0.219 0.378 0.642 1910 0.591 0.673 0.670 0.668 0.632 0.649 0.628 0.656 0.690 0.640 0.612 0.465 1911 0.351 0.281 0.235 0.320 0.389 0.913 1.380 1.849 1.947 2.169 1.681 1.217 1912 0.675 0.386 0.079 -0.058 -0.434 -0.397 -0.377 -0.457 -0.509 -0.124 0.191 0.228 1913 -0.009 -0.186 -0.373 -0.556 -0.465 0.072 0.502 1.047 1.225 1.432 1.346 1.083 1914 0.680 0.087 -0.388 -0.682 -0.546 -0.626 -0.135 0.283 0.564 0.739 0.839 0.630 1915 0.273 0.154 0.124 0.230 0.224 0.168 -0.122 -0.518 -0.789 -0.930 -0.908 -0.931 1916 -0.945 -1.098 -1.368 -1.725 -1.837 -1.765 -1.594 -1.238 -0.764 -0.284 0.034 0.109 1917 0.190 0.393 0.488 0.454 0.770 0.964 0.851 0.600 0.583 0.257 0.153 0.217 1918 0.397 0.691 1.231 1.640 2.022 2.236 2.118 1.871 1.632 1.270 0.856 0.481 1919 -0.048 -0.391 -0.598 -0.589 -0.551 -0.491 -0.399 -0.254 -0.096 -0.013 0.414 0.609 1920 0.469 0.408 0.403 -0.103 -0.864 -1.138 -1.528 -2.083 -1.780 -0.980 -0.714 -0.282 1921 0.510 0.392 0.309 0.322 0.089 -0.495 -0.662 -0.852 -0.662 -0.633 -0.331 0.054 1922 -0.015 -0.091 -0.150 -0.326 -0.837 -0.953 -1.309 -1.244 -1.327 -0.949 -0.570 -0.131 1923 -0.145 0.259 0.286 0.357 0.440 0.423 0.162 -0.113 -0.565 -0.945 -1.062 -1.128 1924 -1.338 -1.318 -1.429 -1.471 -1.433 -1.011 -0.839 -0.530 -0.051 0.075 0.398 1.018 1925 1.436 1.662 1.950 2.161 1.737 1.360 0.958 0.781 0.276 0.157 0.206 0.068 1926 -0.144 -0.107 -0.303 -0.721 -0.694 -0.787 -0.994 -0.738 -0.375 -0.185 0.103 0.305 1927 0.297 0.105 0.075 -0.101 -0.298 -0.512 -0.483 -0.716 -0.534 -0.500 -0.589 -0.651 1928 -0.530 -0.680 -0.671 -0.706 -0.847 -1.014 -1.133 -1.146 -1.075 -0.901 -0.739 -0.496 1929 -0.322 0.077 0.318 0.349 0.146 0.027 -0.181 -0.450 -0.572 -0.684 -0.980 -1.237 1930 -1.359 -1.256 -0.903 -0.513 -0.279 0.071 0.079 0.234 0.258 0.441 0.369 0.186 1931 -0.106 -0.167 -0.604 -1.030 -1.049 -1.277 -1.262 -0.864 -0.542 -0.248 0.402 0.846 1932 0.885 1.131 1.412 1.375 1.273 1.213 0.982 0.674 0.285 0.081 -0.131 0.089 1933 0.112 0.200 0.083 0.357 0.054 0.057 0.177 0.492 0.614 1.088 1.391 1.484 1934 1.619 1.632 1.576 1.473 1.221 1.120 1.084 0.853 0.518 0.406 -0.024 -0.683 1935 -0.747 -0.368 0.034 0.141 0.469 0.365 0.086 -0.305 -0.317 -0.140 -0.177 -0.221 1936 -0.174 -0.230 -0.477 -0.438 -0.487 -0.523 -0.439 -0.263 -0.077 -0.308 -0.092 -0.200 1937 -0.671 -0.740 -0.660 -0.899 -1.025 -0.747 -0.818 -0.742 -0.945 -0.843 -0.866 -0.978 1938 -1.048 -1.030 -0.768 -0.765 -1.057 -0.952 -0.730 -0.627 -0.323 0.074 0.328 0.667 1939 0.484 0.375 0.610 0.567 0.223 0.195 -0.279 -0.156 -0.275 -0.282 -0.425 -0.134 1940 -0.665 -0.764 -0.751 -0.840 -0.908 -0.745 -0.703 -0.700 -0.758 -0.819 -0.945 -0.885 1941 -0.842 -0.677 -0.515 -0.580 -0.937 -1.001 -0.975 -0.923 -0.640 -0.262 -0.167 -0.245 1942 -0.352 -0.798 -0.900 -1.148 -1.358 -1.463 -1.127 -1.063 -0.754 -0.174 0.712 1.215 1943 1.360 1.543 1.446 0.928 0.612 0.451 0.164 0.278 0.287 0.294 0.244 0.399 1944 0.198 0.170 -0.002 0.094 -0.114 -0.228 -0.282 -0.266 -0.459 -0.554 -0.593 -0.305 1945 -0.052 0.431 1.050 1.401 1.281 1.365 1.438 1.444 1.509 1.586 1.325 0.721 1946 0.125 -0.241 -0.560 -1.094 -1.174 -1.262 -1.382 -1.469 -1.132 -1.117 -0.957 -0.846 1947 -0.846 -0.689 -0.536 -0.927 -1.092 -1.101 -0.896 -0.508 0.361 0.567 0.664 0.726 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 -0.451 -0.740 2022 -0.569 -0.517 -0.574 -0.601 -0.374 -0.478 -0.313 -0.280 -0.133 0.123 0.135 -99.990 2023 -99.990 -99.990 -99.990 -99.990 -99.990 -99.990 -99.990 -99.990 -99.990 -99.990 -99.990 -99.990 -99.99 TNI Nina 1.2-Nin04 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/gcos_wgsp/Timeseries/TNI/