| Year | January | February | March | April | May | June | July | August | September | October | November | December |
| 1948 | 1.863 | 0.197 | 1.206 | -5.356 | 0.852 | -4.266 | 1.404 | -0.096 | 5.705 | 8.53 | 9.137 | 9.798 |
| 1949 | -4.314 | 4.566 | -8.024 | 7.273 | -1.189 | 1.673 | 0.55 | 0.088 | -1.726 | -0.47 | -1.846 | 0.534 |
| 1950 | -12.841 | 10.16 | 3.994 | 4.209 | 5.212 | -3.723 | 1.993 | -1.423 | 0.24 | 4.632 | -8.053 | -2.977 |
| 1951 | 8.53 | 0.929 | 0.631 | -3.582 | -0.11 | -4.014 | -4.329 | -3.283 | -3.511 | -0.252 | 0.508 | 0.152 |
| 1952 | 3.564 | 8.967 | 6.213 | 8.316 | -0.202 | 1.771 | -2.453 | -2.038 | -0.088 | -5.653 | -4.233 | 10.575 |
| 1953 | 7.987 | 10.697 | 8.845 | 0.932 | 1.817 | -6.55 | -0.363 | 1.176 | 3.464 | 3.669 | 6.356 | 9.149 |
| 1954 | 0.559 | 12.039 | -9.251 | 1.121 | -0.933 | 6.383 | 2.098 | -5.353 | -5.841 | 1.335 | -0.603 | 7.251 |
| 1955 | 3.225 | 0.617 | -2.601 | 6.547 | 8.862 | 1.396 | -1.334 | 4.84 | -0.404 | 10.607 | -1.68 | -0.324 |
| 1956 | 1.356 | 5.055 | 6.388 | -2.26 | 1.421 | 4.701 | -3.706 | 0.617 | -4.323 | 6.852 | -3.439 | 1.836 |
| 1957 | -16.993 | -6.255 | -0.861 | -4.242 | -4.44 | -0.858 | 4.589 | -3.567 | -4.738 | -10.596 | -2.827 | 12.626 |
| 1958 | 5.328 | -5.047 | -10.5 | -1.606 | -1.467 | -7.214 | -0.798 | 6.666 | 6.744 | 3.663 | 3.84 | -2.204 |
| 1959 | -1.516 | -2.075 | 14.21 | -0.755 | -0.373 | -0.518 | 5.722 | 2.469 | 4.771 | -0.571 | -3.921 | 8.815 |
| 1960 | -1.648 | 0.116 | 1.803 | 6.08 | 2.237 | 2.038 | 1.279 | 4.283 | 0.801 | 2.259 | 2.804 | -6.469 |
| 1961 | -4.677 | 14.34 | 9.913 | -0.572 | -1.753 | -0.361 | -2.898 | 1.504 | 0.034 | 2.736 | 2.177 | 4.613 |
| 1962 | -7.227 | -11.195 | -1.418 | 4.255 | 0.898 | -2.974 | -2.106 | 0.477 | 4.537 | 3.66 | 7.062 | -8.059 |
| 1963 | -21.746 | -2.875 | -3.383 | -2.369 | -3.051 | 3.659 | 0.321 | -5.365 | 1.352 | 8.656 | 6.263 | -4.941 |
| 1964 | 14.164 | 6.225 | 3.594 | 3.635 | -1.293 | -1.366 | 4.24 | 3.953 | -0.916 | -0.552 | -2.241 | 4.816 |
| 1965 | 1.056 | 5.372 | -18.11 | -3.985 | 2.886 | 4.193 | -3.527 | -3.224 | -10.621 | 6.497 | -11.332 | 3.123 |
| 1966 | -0.491 | 0.589 | 6.053 | -10.142 | 4.4 | 1.459 | -2.27 | 6.227 | 3.343 | 5.391 | -9.245 | 1.48 |
| 1967 | 8.261 | 8.682 | -7.163 | -10.433 | -2.678 | -6.29 | -1.039 | 0.951 | 7.28 | 6.719 | -5.712 | -3.532 |
| 1968 | -4.187 | -7.811 | 0.196 | 4.829 | -4.649 | 3.946 | -0.817 | 0.043 | 5.079 | 6.456 | 5.906 | -0.827 |
| 1969 | -5.415 | 7.924 | -5.068 | 5.246 | -2.349 | -7.549 | 3.845 | 7.433 | 1.999 | -9.283 | -0.808 | 1.152 |
| 1970 | -1.909 | -6.226 | -2.758 | 5.361 | 4.107 | 3.227 | 4.416 | 2.455 | 1.671 | -1.496 | -13.003 | 5.042 |
| 1971 | 2.028 | 8.43 | 9.789 | 8.113 | 5.016 | -0.233 | -4.192 | 2.426 | 0.787 | 1.64 | 1.084 | -0.405 |
| 1972 | 2.083 | 4.994 | 2.275 | 7.327 | -2.752 | -0.951 | -5.486 | -0.523 | -3.379 | -8.293 | -1.166 | -5.572 |
| 1973 | 5.024 | -5.048 | 9.391 | -0.336 | 7.378 | 5.385 | 2.629 | 1.644 | 2.29 | 5.425 | -4.435 | 6.19 |
| 1974 | -5.262 | 13.396 | 0.024 | 3.985 | 3.203 | 2.898 | 2.839 | -7.271 | -9.034 | 1.508 | 2.278 | 11.543 |
| 1975 | 8.079 | 4.715 | 2.979 | -1.045 | 3.576 | 0.868 | -0.83 | 1.933 | -4.754 | 4.469 | 7.01 | 4.954 |
| 1976 | 3.301 | 8.865 | 4.629 | 1.151 | 6.305 | -3.367 | 4.515 | 0.275 | 2.39 | -1.256 | -6.986 | -1.882 |
| 1977 | -9.726 | 6.222 | 6.685 | -1.258 | 4.289 | -0.394 | 1.651 | -4.102 | -3.016 | 5.909 | 5.845 | -3.823 |
| 1978 | -11.31 | -1.699 | -2.546 | -2.905 | 3.474 | -4.477 | -2.542 | -0.122 | 4.1 | 0.703 | -10.206 | -1.377 |
| 1979 | -10.658 | 4.829 | -7.709 | -9.25 | 4.034 | -2.719 | -2.651 | -5.858 | 0.413 | -0.44 | -9.121 | 4.575 |
| 1980 | -3.884 | -5.614 | 2.58 | 7.774 | 1.622 | -8.335 | 0.449 | -0.052 | 0.71 | -1.074 | 2.717 | -5.974 |
| 1981 | -8.134 | -1.581 | -1.038 | 2.728 | -2.467 | 8.805 | -0.786 | 1.56 | 6.821 | -3.618 | 2.971 | 6.618 |
| 1982 | 1.759 | -4.528 | -3.631 | 2.658 | 2.119 | -4.346 | -0.294 | -1.332 | -1.997 | 1.599 | -1.551 | 2.848 |
| 1983 | 4.887 | 3.057 | -0.822 | -6.696 | -0.038 | 3.198 | 5.358 | 3.695 | 2.345 | 1.246 | 3.645 | -12.362 |
| 1984 | 0.221 | 14.377 | -0.946 | 7.422 | 8.077 | 3.205 | 0.572 | -0.355 | -1.293 | 0.349 | 6.146 | -4.657 |
| 1985 | -11.563 | 7.392 | 5.17 | 8.009 | -0.257 | 2.17 | -3.141 | -2.131 | -5.923 | 5.14 | -13.097 | -12.05 |
| 1986 | 5.189 | -4.393 | 2.191 | 5.619 | 5.304 | 1.063 | -1.677 | 0.494 | -8.295 | -9.953 | -1.824 | 0.203 |
| 1987 | 3.92 | -1.624 | -5.346 | 7.052 | 1.619 | 2.82 | -1.909 | -6.059 | 1.752 | -4.982 | 1.949 | 5.221 |
| 1988 | -0.444 | 0.623 | 3.483 | 3.647 | 5.017 | 2.153 | 4.38 | 0.632 | 3.469 | -2.749 | 11.474 | -0.372 |
| 1989 | 13.393 | -23.214 | -3.13 | -9.713 | -4.169 | -3.331 | -2.469 | -4.412 | -7.148 | -3.037 | 3.22 | -9.616 |
| 1990 | 9.747 | 6.068 | -7.379 | -9.718 | -3.768 | -0.298 | -1.542 | -1.348 | -1.598 | 7.183 | 3.222 | -5.48 |
| 1991 | -8.794 | 0.716 | -3.169 | 1.54 | 1.73 | -2.765 | 2.603 | 3.406 | -2.584 | -8.471 | 0.2 | 5.949 |
| 1992 | 3.368 | -4.64 | -4.547 | -2.268 | -4.283 | -3.423 | -3.446 | -0.007 | 5.563 | 1.315 | -2.241 | -0.724 |
| 1993 | -6.382 | -11.541 | -1.998 | 1.298 | -6.393 | 0.122 | -3.497 | -2.783 | -8.595 | -10.79 | -8.387 | 1.635 |
| 1994 | -6.663 | 0.23 | 1.012 | -1.38 | 4.985 | 0.118 | -2.606 | -8.715 | 1.956 | 3.609 | 6.829 | 6.23 |
| 1995 | -3.598 | -8.48 | -3.997 | -4.557 | -4.569 | -0.719 | -0.4 | 4.303 | -4.361 | 3.778 | -2.768 | 1.424 |
| 1996 | -0.658 | -1.958 | -17.142 | 5.916 | -2.31 | 1.492 | -1.232 | 3.188 | 3.454 | 3.936 | -8.214 | -0.916 |
| 1997 | -2.82 | 1.944 | 4.078 | -2.299 | -10.064 | 1.665 | 1.958 | -3.613 | 1.55 | 2.05 | -3.43 | 5.598 |
| 1998 | 2.265 | 8.932 | -3.694 | 0.253 | -1.921 | -4.997 | 0.985 | 4.286 | 2.415 | 0.55 | 2.329 | 1.9 |
| 1999 | 5.843 | 19.206 | 8.144 | 0.815 | 4.027 | 0.352 | -2.257 | 1.061 | 1.833 | 5.443 | 5.133 | 5.366 |
| 2000 | 4.5 | 3.362 | 5.797 | 0.52 | 6.493 | -0.176 | -0.581 | -2.306 | -1.731 | 1.559 | -6.005 | -5.584 |
| 2001 | 3.647 | -4.188 | 3.413 | 2.439 | 9.719 | -3.218 | -0.115 | 3.318 | 3.712 | 4.749 | 2.894 | 7.625 |
| 2002 | 1.043 | 7.276 | -8.278 | -6.971 | -3.651 | 1.801 | 2.047 | 1.182 | -0.348 | -11.547 | -7.541 | 1.714 |
| 2003 | -6.833 | -8.271 | 2.053 | -3.314 | 2.771 | -0.768 | -1.253 | 1.541 | 1.802 | -3.217 | -4.225 | 7.417 |
| 2004 | -4.326 | 3.724 | 4.997 | -4.986 | -5.92 | -8.426 | -3.724 | -3.717 | 5.062 | -0.154 | -1.089 | -2.607 |
| 2005 | -12.886 | -3.027 | -4.583 | -4.622 | -1.939 | -1.628 | 6.651 | -1.446 | 1.395 | 7.909 | 1.959 | -3.982 |
| 2006 | 12.909 | -2.991 | -0.761 | 4.888 | -1.361 | -1.66 | 2.252 | 1.547 | -2.735 | -6.975 | 2.906 | 10.638 |
| 2007 | 2.052 | -0.238 | 8.916 | 5.057 | 2.183 | 0.791 | 2.355 | -0.272 | -0.153 | 8.809 | -2.629 | 5.33 |
| 2008 | 3.901 | 8.751 | 7.903 | -2.222 | -0.78 | 1.429 | 5.098 | 7.572 | -0.565 | 5.012 | 1.881 | -3.372 |
| 2009 | -1.496 | -2.477 | 4.056 | -5.323 | -2.823 | -0.53 | -4.681 | 1.848 | 6.069 | -5.227 | 10.417 | -14.201 |
| 2010 | -4.048 | -2.642 | 9.248 | 4.203 | 2.667 | 5.101 | 1.352 | -1.135 | -1.87 | 6.487 | -4.178 | 0.205 |
| 2011 | -4.373 | -1.66 | 5.665 | 6.672 | -0.751 | 1.248 | 4.433 | 5.599 | 8.206 | 5.578 | 7.391 | 2.557 |
| 2012 | 13.572 | 4.677 | 13.469 | -1.068 | 7.834 | -0.014 | 0.282 | -1.233 | 0.472 | -8.216 | -4.3 | 5.583 |
| 2013 | -4.712 | 7.026 | -4.3 | -1.954 | -2.404 | -5.844 | -5.886 | 0.709 | 3.878 | -9.208 | -9.056 | -8.732 |
| 2014 | -8.59 | 0.652 | -1.863 | 2.706 | -7.868 | 0.564 | 0.196 | 2.403 | -2.023 | 2.901 | -9.952 | -2.77 |
| 2015 | -9.206 | -10.362 | -3.927 | 4.095 | -12.828 | -3.991 | 0.729 | -0.603 | 3.449 | -3.366 | -0.404 | 9.746 |
| 2016 | -1.808 | 4.146 | -0.231 | -1.953 | -7.091 | -1.8 | -1.058 | -3.823 | 1.296 | -4.723 | 4.433 |
The monthly East Pacific Oscillation (EPO) is a monthly average from daily average from Daily Teleconnection Indices: Historical Values from NCAR/NCEP Reanalysis-EPO. The original monthly average is divided by 10.
Texas Hurricane 