1871 2012 1871 0.071 -0.135 1.107 0.749 0.234 -0.280 0.541 0.662 0.144 -0.542 0.355 0.577 1872 1.139 0.442 0.267 -0.552 -0.579 -0.533 -0.037 0.159 0.165 0.096 0.573 0.933 1873 0.907 0.326 0.102 0.455 -0.233 -0.150 0.124 0.550 -0.052 0.187 0.606 0.583 1874 0.685 -0.580 0.371 -0.431 0.128 -0.310 0.524 0.767 -0.070 0.221 -0.102 0.069 1875 0.281 0.020 -0.272 1.102 0.323 -0.169 0.480 0.514 0.535 -0.168 -0.004 0.113 1876 0.587 -0.216 0.686 0.097 -0.257 0.025 0.334 0.351 0.502 0.159 0.715 1.505 1877 1.510 1.963 1.391 1.047 0.417 0.306 1.122 1.603 0.473 0.639 0.261 1.310 1878 1.946 0.984 1.392 1.040 0.050 0.047 -0.067 0.894 -0.380 -0.382 1.012 0.966 1879 0.943 -0.430 -0.264 -0.255 -0.563 -0.306 0.139 0.830 0.215 -0.354 -0.443 -0.856 1880 0.507 -0.706 -0.277 -0.320 -0.799 -0.201 0.591 0.607 0.015 0.315 0.142 1.285 1881 1.009 0.380 1.381 1.083 0.160 0.232 0.505 0.252 -1.106 0.166 -0.968 0.125 1882 0.616 -0.147 0.468 0.341 0.303 0.344 0.615 0.604 0.701 -0.671 0.749 1.223 1883 1.188 -1.290 1.700 0.402 -0.069 -0.152 0.214 0.327 0.548 -1.449 -0.864 0.529 1884 0.695 0.302 -0.002 1.096 0.101 0.646 -0.289 0.958 -1.620 -0.856 1.478 -0.462 1885 -0.235 -0.181 1.082 -1.087 -0.002 -0.336 0.117 0.378 -0.449 0.571 0.555 0.285 1886 0.233 -0.876 -0.777 -0.126 -0.821 -0.146 0.045 -0.455 -0.489 -0.447 -0.621 0.716 1887 -1.821 -3.082 -0.479 -0.390 -0.689 -0.585 -0.291 -0.052 0.086 -0.311 0.171 -0.512 1888 -0.388 1.048 -0.441 -0.127 -0.276 -0.370 0.307 0.437 0.279 -0.070 0.341 1.625 1889 1.428 1.081 2.542 0.924 0.269 -0.371 0.235 0.035 -0.089 0.606 0.819 -0.733 1890 -1.784 -1.463 -0.272 -0.996 -0.568 -0.134 0.378 0.008 0.250 0.631 0.604 -0.333 1891 1.950 -0.266 0.512 0.662 0.713 0.110 0.331 0.495 -0.333 0.003 0.045 -0.099 1892 1.223 0.111 0.234 0.286 0.345 -0.448 -0.262 0.329 -0.299 0.828 -0.682 1.542 1893 1.023 -0.297 0.796 -0.721 -0.186 -0.306 -0.076 0.826 -0.417 -0.716 0.310 -0.031 1894 -0.441 -0.731 -0.972 0.204 -0.094 -0.118 0.723 0.853 -0.180 -0.077 -0.304 0.131 1895 0.225 1.000 0.175 0.352 -0.230 -0.598 0.060 0.266 -0.373 0.157 -0.052 -0.324 1896 0.484 0.628 -0.225 -0.726 -0.396 0.043 0.109 0.340 0.012 0.675 -0.568 0.725 1897 1.140 -1.103 -0.958 0.511 0.541 -0.361 0.103 0.918 0.152 0.213 -0.768 0.945 1898 0.052 -0.400 -0.491 0.291 0.258 -0.152 0.007 0.658 0.156 0.134 -0.497 0.543 1899 -0.158 -0.450 -1.046 0.310 -0.294 -0.646 0.514 0.554 0.728 0.048 2.041 0.258 1900 0.444 -0.003 1.178 0.820 0.417 -0.008 -0.162 -0.391 -0.485 -0.393 0.345 0.102 1901 -0.531 0.733 0.267 0.221 0.508 -0.521 0.125 0.362 0.103 0.284 0.760 -0.463 1902 1.427 1.961 -1.747 0.089 -0.202 -0.096 -0.405 0.383 -0.405 0.569 -0.235 -0.512 1903 0.529 -0.483 -0.890 -0.035 -0.034 0.341 -0.029 0.168 0.049 0.478 0.994 1.567 1904 0.298 -0.840 -1.361 -0.009 -0.485 -0.805 -0.110 0.176 0.063 0.369 1.543 0.547 1905 0.378 1.077 1.147 0.654 -0.250 -0.788 0.406 0.477 0.332 -0.207 0.799 0.498 1906 0.119 0.770 0.756 0.550 0.095 0.100 0.871 0.516 0.235 0.691 0.993 0.220 1907 -2.012 0.515 -1.210 -0.142 0.300 -0.017 0.156 -0.056 0.209 0.877 0.882 1.372 1908 1.353 0.051 -1.686 -0.464 0.106 -0.444 1.059 0.517 -0.046 0.390 1.293 0.269 1909 -0.839 -0.087 -0.015 -1.054 -0.055 0.809 0.706 0.576 0.017 0.286 0.140 1.276 1910 -0.866 -0.169 0.371 0.134 0.098 -0.547 -0.198 -0.398 -0.193 0.520 0.213 0.737 1911 -2.678 -1.796 -0.738 -1.145 -0.355 -0.231 -0.204 -0.128 -0.807 0.342 -0.313 -0.571 1912 0.608 1.210 -0.938 -0.232 0.154 -0.030 -0.186 -0.049 0.496 -0.136 0.564 -0.231 1913 -1.683 -0.575 -0.207 0.464 0.555 0.403 0.017 0.379 0.354 -0.333 -0.198 2.213 1914 0.001 0.388 0.364 0.543 -0.387 -0.444 -0.018 -0.123 -0.564 1.327 0.827 -0.664 1915 1.230 0.314 2.841 0.861 0.320 -0.555 -0.072 0.890 -0.389 -0.399 -0.739 0.017 1916 -3.317 0.191 0.050 0.635 -0.717 0.057 0.382 0.123 -0.325 -0.982 -0.373 -1.436 1917 -1.995 -0.168 -2.245 0.131 0.337 -0.607 -0.399 0.593 0.343 -0.161 2.673 -0.237 1918 0.742 -1.753 -1.623 -0.516 -1.358 0.177 0.336 -0.519 1.075 0.086 0.817 -0.030 1919 1.364 0.802 -0.545 0.684 0.560 -0.107 -0.171 0.225 0.050 -2.078 -0.226 0.184 1920 -0.262 -0.067 -1.975 -1.029 -0.321 0.016 0.452 0.376 -0.688 -0.391 0.256 -0.271 1921 -1.580 0.202 -1.966 -0.139 -0.147 0.778 -0.484 -0.476 -0.762 0.669 -0.103 -0.072 1922 -1.309 -2.228 -1.049 -1.070 0.079 -0.026 -0.262 0.216 -0.538 0.212 0.189 -0.796 1923 -2.034 -1.077 -1.674 -0.053 0.015 0.269 0.182 0.330 -0.243 1.485 1.845 -0.974 1924 0.063 1.466 0.027 -0.925 0.601 -0.533 -0.066 -0.275 -0.115 -0.237 0.703 -0.479 1925 -1.788 -0.117 -0.720 -0.064 0.971 0.261 0.277 -0.305 -0.533 0.084 0.240 1.948 1926 1.665 1.045 1.759 1.055 0.883 0.257 0.631 0.040 -1.009 0.944 1.209 -0.871 1927 -0.538 0.531 -0.857 -1.009 -0.691 0.425 0.206 0.440 0.108 -0.296 -1.310 -1.500 1928 0.924 0.427 0.417 -0.216 1.115 -0.315 0.173 -0.246 -0.457 -0.474 1.169 0.798 1929 -1.787 -1.535 -1.062 -0.578 0.055 0.178 -0.200 0.469 0.616 1.659 0.197 -0.392 1930 -1.469 0.129 -0.080 0.549 0.026 0.389 0.515 0.941 -0.173 0.359 0.624 2.029 1931 2.575 1.203 1.591 0.719 0.251 1.128 0.558 0.820 -0.483 -0.465 -0.971 -1.366 1932 -2.159 -2.621 0.822 1.061 0.264 0.594 0.117 0.490 0.481 0.073 -0.022 -1.008 1933 -2.726 -1.963 0.004 -0.134 -0.798 -0.468 -0.049 0.863 -0.656 0.269 1.108 -1.314 1934 0.552 1.897 0.678 1.038 0.924 0.156 0.291 0.431 -0.064 0.424 0.793 0.429 1935 -0.742 1.178 -2.168 -0.142 0.447 0.180 -0.071 -0.293 0.321 -0.394 -0.353 2.712 1936 0.874 -1.220 -0.777 0.229 0.794 0.283 -0.133 -0.055 -0.662 0.413 1.514 -1.919 1937 -4.126 -1.617 0.477 -0.378 0.450 0.944 0.082 -0.972 0.308 1.401 0.602 0.206 1938 0.856 -0.487 -0.471 0.726 -0.143 -0.095 0.112 -0.717 1.035 1.423 -0.868 0.348 1939 -0.079 -2.628 -0.990 -0.138 0.496 -0.424 0.167 0.502 -0.497 -0.904 1.789 3.000 1940 1.859 1.175 1.032 1.855 0.869 0.644 -0.260 0.490 0.908 1.182 0.171 1.548 1941 2.265 2.563 1.920 1.535 -0.014 0.458 0.690 0.307 -1.072 -0.677 0.630 0.385 1942 2.577 0.359 -0.606 -0.145 -0.260 -0.112 0.255 0.092 0.299 0.626 -0.668 -0.470 1943 -0.481 0.601 -0.936 1.753 -0.710 -0.399 -0.061 -0.474 0.379 0.695 1.986 1.347 1944 1.482 -1.913 -1.276 0.712 0.587 -0.156 0.560 -0.400 -0.222 1.149 1.186 0.825 1945 1.832 -0.677 -1.083 -1.941 0.302 -0.093 0.249 0.089 -0.718 -0.128 -1.471 0.594 1946 -0.118 -0.447 -0.814 -0.389 0.367 -0.204 0.197 0.186 -0.191 -1.876 -1.004 -1.972 1947 -2.311 1.255 1.120 0.010 0.605 0.062 -0.031 -0.614 -0.588 0.088 0.221 -0.377 1948 0.440 -2.054 -2.178 -1.790 0.551 0.569 -0.456 -0.623 -0.526 0.357 -0.860 -2.547 1949 -2.086 -3.122 0.143 0.638 -0.074 -0.914 -0.502 -0.205 0.571 -0.875 1.732 -2.049 1950 -4.373 -0.491 0.209 -0.482 -0.603 -0.048 -0.252 0.524 0.683 -0.333 -0.405 0.978 1951 -0.805 -1.640 -1.484 0.454 0.850 0.007 -0.022 0.133 0.255 -0.327 0.123 -2.335 1952 -2.181 0.056 -1.391 0.827 -0.130 -0.788 -0.457 -0.167 0.376 1.002 0.641 1.253 1953 0.971 0.147 -0.919 0.865 0.434 -0.455 0.305 -0.256 -0.063 1.395 0.848 0.195 1954 -1.420 0.886 -1.073 -1.421 0.312 0.324 -0.134 -0.183 -0.461 1.148 2.475 0.159 1955 0.483 -2.362 -1.939 -1.078 -0.099 -0.014 -0.024 0.027 -0.617 -0.233 -1.110 -0.956 1956 0.330 -2.920 -0.920 0.280 -0.030 -0.448 -0.048 0.346 -0.315 -1.441 1.424 -0.400 1957 -2.419 -2.227 0.325 -0.541 0.650 0.432 -0.059 0.031 0.922 0.820 0.451 -0.714 1958 2.845 2.324 -0.391 0.558 0.266 0.228 0.124 0.252 -0.652 0.057 -0.567 1.294 1959 -0.419 -1.833 0.284 -0.459 -0.382 0.154 0.095 -0.810 -0.341 0.253 0.528 0.819 1960 0.062 0.626 0.214 0.356 0.239 -0.306 0.558 -0.652 -0.005 0.129 -0.424 1.703 1961 2.636 -0.106 0.330 -0.892 -0.040 0.364 0.042 0.509 -1.173 -1.364 -0.861 -1.349 1962 -0.775 -1.112 -0.509 -0.148 -0.939 -0.462 0.067 -0.452 -0.016 0.505 0.966 1.164 1963 -0.606 1.818 -1.814 -0.637 -0.449 -0.585 -0.559 0.434 1.071 0.625 0.219 2.339 1964 -0.126 0.092 -2.046 -1.825 -1.500 0.353 -0.166 -0.696 -0.640 0.315 -0.615 -1.490 1965 0.183 -1.544 0.174 -0.596 -0.761 0.367 0.119 0.442 -0.463 0.932 -0.644 -1.226 1966 0.541 -1.535 0.795 -0.088 -0.645 0.778 0.076 0.046 1.180 -0.346 -1.196 0.651 1967 -0.672 -0.533 -1.693 -2.068 -0.567 0.224 -0.372 0.592 1.520 0.358 -0.238 -1.242 1968 -1.309 2.724 0.885 -0.880 0.471 0.581 0.541 -0.034 0.056 -0.008 1.560 -0.975 1969 -2.307 0.146 0.809 0.622 0.824 0.543 -0.171 -0.203 0.273 1.131 1.081 2.514 1970 0.852 1.892 0.776 -1.110 -0.131 0.611 0.155 -0.008 -0.573 -0.705 -0.605 -1.880 1971 -1.345 -0.260 0.062 0.409 0.425 -0.104 0.117 0.468 -0.513 -0.988 -0.440 -3.190 1972 -2.715 -0.621 0.547 -1.332 0.583 0.357 -0.084 0.693 -1.139 -0.296 0.602 -0.984 1973 0.127 1.054 -0.519 0.090 0.414 -0.068 0.130 -0.433 0.491 -0.678 -1.995 0.913 1974 -2.221 -0.586 -0.391 0.002 -0.595 -0.105 0.232 0.356 0.406 1.139 0.532 0.578 1975 -1.385 -0.478 -0.712 -1.335 -0.063 -0.657 0.588 -0.476 0.313 -0.801 -0.541 0.375 1976 0.503 -1.454 -1.324 0.484 0.116 -0.568 0.612 0.262 1.196 0.637 2.033 1.124 1977 2.174 2.324 -2.010 0.083 -0.168 0.210 -0.325 0.205 -0.988 0.441 0.112 -0.245 1978 1.847 2.641 0.834 -0.153 -0.352 -0.944 -0.116 -0.410 -0.051 0.304 -1.029 -2.247 1979 -0.020 -1.530 0.439 -0.791 0.305 -0.790 0.034 0.237 0.806 0.942 0.635 -0.038 1980 -0.525 1.966 -0.602 1.881 0.648 -0.700 -0.258 -0.951 -0.294 1.264 1.174 1.019 1981 3.767 -0.143 2.155 -0.965 0.902 -0.096 -0.395 0.766 0.580 -0.901 1.242 0.351 1982 -1.636 -1.610 -1.587 -1.101 0.044 0.353 0.120 -0.171 0.225 -0.349 -0.272 0.716 1983 2.375 2.591 2.759 0.333 -0.042 0.707 0.138 -0.287 -1.087 -0.292 1.336 -0.627 1984 0.537 0.942 2.010 1.006 -0.018 -0.156 -0.063 -0.030 -0.141 -0.534 0.129 -2.548 1985 2.412 -2.037 -1.029 -0.507 -0.465 0.183 0.413 -0.565 -1.141 -1.792 -2.005 1.899 1986 2.353 0.858 1.399 -0.474 -0.061 0.119 -0.385 0.352 -0.849 0.924 -1.194 1.643 1987 1.589 0.989 1.155 1.593 -0.140 0.272 0.051 -0.156 0.391 0.519 1.085 -0.060 1988 0.430 0.743 0.899 1.030 0.459 0.788 0.134 -0.121 -0.314 0.734 -0.777 0.092 1989 -1.644 -1.901 -0.198 0.251 -0.866 0.146 0.313 0.234 0.093 -0.671 -0.711 1.282 1990 -1.131 -2.371 0.338 0.575 -0.270 -0.443 0.313 0.142 0.572 -1.336 -2.087 -2.371 1991 -0.673 1.177 -1.415 0.315 -0.203 -0.482 0.021 0.370 0.663 -0.979 0.610 -0.028 1992 2.276 0.575 1.967 1.122 0.261 0.725 -0.439 0.237 -1.193 0.384 0.542 -2.157 1993 -0.674 0.890 1.788 1.782 1.231 0.208 -0.534 0.244 -0.485 0.204 -1.157 1.223 1994 0.385 -1.833 0.718 0.541 0.651 -0.387 0.027 0.007 0.256 -0.223 -2.791 0.522 1995 2.005 0.498 0.482 0.350 0.749 0.882 -0.182 -0.806 1.143 -0.630 0.065 1.598 1996 -0.906 -0.301 0.337 1.375 -0.464 -0.351 -0.045 -0.169 -0.234 -0.619 -0.375 -1.083 1997 0.924 0.020 -0.496 1.340 0.181 0.628 0.181 0.095 0.520 -0.123 0.950 1.320 1998 1.086 2.420 1.032 0.496 -0.327 -0.838 0.449 0.114 -0.047 -0.018 -0.211 -0.890 1999 -0.548 0.181 -0.092 -0.495 -0.526 -0.385 -0.789 0.457 0.191 -0.112 0.317 0.063 2000 -0.853 0.849 0.832 0.363 -0.175 -0.365 -0.077 -0.540 -0.387 -0.062 0.574 1.246 2001 2.229 -1.368 0.266 -0.942 -0.137 -0.598 -0.345 0.467 0.351 -0.956 1.240 0.092 2002 -0.741 0.204 -1.363 -1.359 -0.670 0.574 0.370 0.296 -0.538 0.034 1.969 1.548 2003 2.901 -0.372 0.192 -0.390 -0.264 -0.059 0.152 0.458 0.231 1.093 -2.560 0.707 2004 0.448 1.022 -0.246 1.011 -0.714 -0.084 0.365 0.442 -0.538 -1.054 -0.239 -0.205 2005 0.036 0.143 1.404 0.730 1.275 -0.370 -0.166 0.020 -1.042 -0.076 -0.446 1.885 2006 0.079 -0.750 -0.934 -0.377 0.154 0.438 0.176 -0.320 0.410 -0.750 -0.682 1.311 2007 0.094 -0.233 0.073 1.227 0.111 -0.045 0.836 -0.508 -1.036 -0.698 0.246 -1.163 2008 -1.197 -0.295 0.126 -1.137 0.470 -0.358 -0.038 0.476 0.199 0.054 1.048 -2.257 2009 0.400 -1.577 -1.783 -0.651 -0.244 0.285 0.614 0.363 1.110 -0.103 -0.245 0.839 2010 2.561 2.252 1.522 0.012 -0.177 -0.082 -0.494 -0.657 -0.237 0.923 -0.789 -0.030 2011 0.430 -2.206 0.109 -0.860 -0.204 -0.638 -0.829 -0.057 1.075 -0.232 -1.960 -0.380 2012 0.038 0.017 -1.348 0.466 -0.422 -0.472 -0.127 -0.011 0.487 -0.241 0.029 -1.281 -999. PNA usiing http://www.cpc.noaa.gov/products/precip/CWlink/pna/month_pna_index2.shtml method (area differences) from NOAA/ESRL/PSD