WP_INDEX (20th Century Reanalysis V3) ** undef = -9.99e+08 year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1836 0.179 0.340 0.817 -0.336 0.402 -0.481 0.253 -0.169 0.249 0.394 -0.263 0.437 1837 0.330 1.098 1.459 -0.492 1.588 -0.263 0.451 -0.254 -0.254 0.317 -0.355 0.427 1838 0.670 0.676 0.805 -0.539 -0.029 -0.676 0.799 -0.334 -0.323 -0.771 -0.077 -0.279 1839 0.577 0.869 1.320 0.014 1.045 -0.234 1.383 -1.390 -0.516 0.258 0.139 0.399 1840 0.796 0.772 0.788 -0.552 0.650 -0.475 0.627 0.479 0.439 0.214 -0.374 -0.149 1841 0.458 0.123 1.639 0.805 0.679 -0.566 1.153 0.293 0.122 0.153 -0.248 0.686 1842 0.971 1.527 1.075 0.196 1.525 -0.356 1.216 -1.145 0.189 0.341 -0.173 0.532 1843 1.067 0.750 0.057 0.633 0.920 -0.100 1.557 -0.337 -0.042 -0.083 0.060 0.588 1844 0.372 0.709 0.895 0.314 0.906 -0.172 0.802 -0.233 0.052 0.542 0.447 0.824 1845 0.852 1.738 1.161 0.639 0.785 -0.280 0.961 -0.607 0.124 0.527 0.446 1.005 1846 0.956 1.006 0.926 0.037 1.055 -0.201 1.217 -0.816 0.067 0.372 0.462 0.058 1847 0.652 1.522 1.621 -0.228 1.515 -0.303 2.123 -0.569 0.265 0.445 0.022 1.059 1848 1.571 1.992 2.064 -0.216 1.423 -0.255 1.392 -0.148 -0.132 0.761 0.146 0.359 1849 1.180 1.786 1.931 -0.255 1.187 0.206 1.277 -0.343 -0.041 0.796 0.492 -0.164 1850 0.889 1.513 0.987 0.194 1.199 -0.296 1.671 -0.364 -0.101 0.903 0.422 0.506 1851 1.216 2.110 1.778 0.595 1.114 -0.187 1.962 -0.653 -0.379 0.329 -0.581 0.149 1852 0.704 1.975 1.447 -0.747 2.058 0.146 1.374 -0.612 -0.316 0.220 -0.368 0.370 1853 1.668 1.891 1.914 -0.075 1.674 0.148 0.985 -0.345 0.216 -0.043 -0.067 0.697 1854 0.920 1.325 1.752 -0.313 0.234 -0.237 1.307 -0.565 -0.281 -0.221 -0.116 0.234 1855 0.278 0.343 1.145 0.461 0.753 -0.169 1.475 -1.111 0.396 0.861 0.056 0.160 1856 1.313 2.153 2.360 -0.105 1.195 0.104 1.498 -0.254 -0.162 0.047 0.274 -0.008 1857 0.483 0.490 1.344 0.385 1.299 -0.558 0.500 -0.017 -0.393 0.480 0.782 0.722 1858 2.020 2.380 2.494 0.126 0.867 -0.082 1.808 -0.914 0.084 0.300 -0.914 0.075 1859 1.211 1.776 1.819 0.544 0.487 -0.484 1.997 -0.115 0.058 0.635 0.133 0.003 1860 0.804 1.738 2.600 -0.071 0.646 -0.507 0.678 0.145 0.218 0.622 0.577 0.311 1861 1.098 2.241 2.265 -0.388 0.719 -0.089 0.780 -0.112 0.158 0.310 -0.028 0.459 1862 0.201 0.669 1.294 -0.382 0.672 -0.380 0.512 -0.128 0.466 0.870 0.857 0.977 1863 1.025 1.682 1.747 -0.796 0.787 -0.822 1.465 -0.613 0.218 0.359 -0.101 -0.083 1864 0.637 2.212 1.561 -0.329 0.686 -0.721 1.169 -0.560 0.260 0.329 -0.290 0.921 1865 0.415 1.576 1.965 0.246 0.398 -0.670 1.587 -0.237 0.410 0.421 0.771 0.378 1866 1.320 1.147 1.474 -0.476 0.607 -0.246 2.089 -0.020 0.081 0.625 0.332 -0.556 1867 0.274 2.151 1.377 0.087 0.581 -0.462 0.222 -0.422 0.374 0.586 -0.187 -0.150 1868 0.717 1.751 2.001 -0.294 0.724 -0.410 1.772 -0.642 0.183 0.925 0.110 0.700 1869 1.183 1.101 1.706 -0.232 0.365 -0.711 1.233 -0.763 0.095 0.064 0.203 0.798 1870 0.808 1.037 0.556 0.199 1.455 -0.278 1.054 -0.259 0.622 0.826 0.758 0.096 1871 1.232 1.802 1.653 0.007 1.207 -0.411 1.051 0.396 1.017 1.216 0.063 0.225 1872 0.976 1.464 0.968 0.930 -0.052 -0.689 1.104 -0.348 -0.245 0.634 -0.268 0.290 1873 1.084 0.752 0.841 0.895 -0.611 -1.009 1.288 -0.313 0.293 0.142 -0.826 -0.562 1874 0.585 0.444 1.038 1.250 0.214 -0.405 1.421 0.038 0.573 0.927 -0.540 0.069 1875 0.022 0.502 1.453 -0.044 0.582 -0.162 1.085 -0.229 0.081 0.851 0.228 0.165 1876 1.075 1.917 0.228 0.798 0.941 -0.405 0.563 -0.312 0.143 0.525 0.261 0.165 1877 0.607 1.633 1.122 0.519 0.763 -0.086 0.158 -0.919 0.750 1.225 0.686 1.482 1878 1.895 1.705 1.186 0.588 0.081 -0.973 1.302 -0.829 0.436 0.870 0.660 0.802 1879 1.372 1.066 1.337 0.437 0.058 -0.441 0.362 -0.419 0.435 1.608 0.623 0.734 1880 0.525 2.629 1.320 0.383 0.559 -0.890 0.411 0.491 1.222 0.321 -0.661 -0.389 1881 -0.469 0.189 1.788 0.327 0.709 0.037 0.771 1.742 1.061 0.577 -0.483 1.474 1882 0.665 0.598 -0.153 1.465 -1.128 -0.385 0.489 0.313 0.209 0.916 1.460 0.928 1883 0.700 1.082 0.580 -0.414 -0.037 -0.127 -0.303 0.196 0.965 1.941 0.209 0.392 1884 0.260 -1.036 0.365 0.144 0.824 -1.148 0.118 -0.894 -0.149 0.070 -0.692 -1.002 1885 0.057 -1.477 -1.462 0.368 0.813 1.199 0.820 -0.466 -0.890 -0.735 -0.501 0.589 1886 -1.226 0.215 0.960 1.128 -0.430 -0.566 1.175 0.028 -0.012 1.036 0.586 -0.207 1887 0.437 1.351 -0.460 1.678 0.128 -1.107 1.918 -0.391 -0.067 0.203 -0.881 -0.896 1888 -0.905 0.053 0.333 1.759 0.753 0.365 0.343 -0.853 0.954 -0.727 -1.297 -0.039 1889 0.118 0.617 1.879 0.330 -0.341 0.309 0.557 0.795 -0.773 -0.642 -0.011 1.748 1890 0.268 0.750 0.422 1.009 1.043 -0.142 0.955 0.586 -0.853 0.307 -0.339 0.380 1891 0.300 0.972 0.506 -0.202 0.607 -1.853 0.035 -0.860 -0.103 0.183 -0.543 0.094 1892 0.312 0.717 0.714 0.075 0.201 -0.482 -0.325 -0.198 0.995 -0.372 -0.076 -0.928 1893 -0.663 -0.030 -0.532 0.674 -0.782 -0.439 0.442 0.730 -0.119 0.930 -0.749 -0.708 1894 0.193 1.021 0.893 1.397 -0.313 0.837 0.231 0.526 0.465 1.310 0.005 0.776 1895 -0.512 -0.843 0.722 0.686 0.117 -0.592 0.374 -0.061 -0.065 -0.067 0.427 0.645 1896 -0.207 0.310 1.181 0.282 0.135 -0.551 0.358 0.467 -0.711 -0.042 -0.873 0.634 1897 1.187 1.654 1.692 0.430 0.307 -0.841 1.727 0.190 -0.002 -0.091 0.218 0.494 1898 1.443 -0.443 1.934 0.556 0.828 0.287 0.731 -0.145 -0.972 -0.596 0.292 0.324 1899 0.011 -0.498 -0.346 0.006 -0.057 -0.853 0.941 -0.894 -0.437 0.163 -0.100 -0.127 1900 0.708 0.587 -0.169 0.354 0.293 -1.100 -0.642 -0.155 0.107 1.080 -0.459 0.206 1901 -0.011 -1.017 -0.403 1.720 -1.093 -1.531 1.583 0.220 0.726 0.492 -0.302 -0.564 1902 -0.376 0.391 0.943 -1.266 0.449 0.143 -0.339 0.040 0.977 1.073 0.672 0.516 1903 0.945 0.998 1.466 0.853 -0.351 -0.074 -0.552 -0.388 -0.114 -0.775 -0.744 -0.272 1904 0.982 -0.230 0.419 0.307 0.336 -0.256 -1.532 -0.371 -0.437 -0.335 0.083 -0.300 1905 0.736 -0.967 0.140 -1.204 -0.038 -0.858 -0.279 -0.287 -0.253 -0.643 0.251 -0.101 1906 -0.213 -0.869 -0.076 -0.081 -0.421 -0.707 0.408 -0.789 -0.554 -0.580 -0.702 -0.612 1907 -0.007 -0.249 1.286 -0.166 0.413 -0.107 -0.240 0.307 -1.249 -0.760 0.208 0.011 1908 1.062 0.402 0.478 0.636 -0.897 -0.696 0.048 0.766 -1.361 -0.535 -0.518 0.171 1909 -0.108 0.072 1.236 0.732 -0.034 0.258 0.262 0.334 -0.567 -0.250 0.051 -1.171 1910 1.404 -0.421 0.117 0.932 0.652 -0.092 0.205 -1.427 -0.512 0.683 -0.789 -0.772 1911 -0.468 0.966 -0.261 1.087 1.383 0.468 -0.342 -1.131 1.366 0.735 -1.234 1.033 1912 0.200 0.888 1.887 -1.121 0.270 -1.035 -0.260 -0.787 -0.502 -0.687 0.477 0.061 1913 0.643 -0.250 -0.387 -0.260 0.587 -0.280 0.137 -1.486 -0.912 -0.425 0.649 -0.613 1914 0.866 -1.153 1.038 0.281 1.520 -0.602 -0.228 0.102 -0.401 0.005 -0.516 1.121 1915 0.041 1.272 -1.239 -1.570 -0.831 0.270 0.017 -0.182 -0.220 0.544 1.087 1.229 1916 0.803 -0.503 -0.920 -0.395 0.202 -0.245 0.591 -0.226 0.628 1.116 1.390 -0.965 1917 -0.434 -0.626 1.269 0.293 0.433 0.326 0.612 0.165 0.871 0.002 -0.478 -2.852 1918 -0.859 1.171 0.579 1.217 0.078 -0.045 -1.028 0.139 -0.278 -0.717 -0.064 0.612 1919 0.415 1.476 1.325 0.723 2.123 -0.205 1.092 -0.392 -0.185 -1.163 -0.325 -0.726 1920 -0.529 0.217 1.618 0.651 -1.675 -1.020 -0.131 0.831 -0.666 0.286 1.077 0.298 1921 1.865 -0.369 -0.071 1.072 -0.913 -0.908 -0.005 0.264 0.089 0.541 -1.122 0.595 1922 0.057 1.929 0.025 1.045 0.492 -0.267 0.510 0.441 0.092 -0.042 -0.688 -2.002 1923 1.566 -0.895 0.654 -0.895 -0.059 -0.343 -0.376 -0.041 1.113 -0.694 -0.553 1.582 1924 -0.167 1.015 0.215 1.065 0.701 -1.317 -1.066 -0.235 -0.445 -0.081 -1.331 -1.730 1925 -0.576 -0.590 -0.260 0.381 -0.580 -0.833 0.400 0.224 0.330 -1.631 -0.660 -1.279 1926 0.491 0.321 0.532 -1.482 -1.124 -0.168 -0.180 -1.244 -1.102 -2.069 -0.546 -1.052 1927 0.231 -0.517 -0.024 2.189 0.347 1.642 0.886 0.007 -1.616 -0.623 -1.778 -0.176 1928 0.858 0.188 -1.201 -0.083 1.478 -0.139 0.469 0.625 1.449 1.802 0.377 0.383 1929 -1.485 -1.496 1.015 0.020 -0.343 -0.486 -0.045 -0.247 -0.925 0.394 0.324 0.393 1930 -0.411 -0.090 -0.224 0.186 1.045 0.038 -0.137 -0.081 -0.511 -0.099 -1.293 0.297 1931 0.910 1.237 -0.374 -0.780 0.196 -1.247 0.871 0.221 -0.422 1.219 0.215 1.404 1932 1.210 -0.643 -0.860 -0.932 0.713 -0.741 -0.097 -0.726 0.493 -0.518 -1.059 0.211 1933 1.156 -0.074 0.172 -0.313 -0.069 -0.288 1.445 0.487 -0.788 -0.778 -0.647 -1.836 1934 -1.005 -1.530 -0.919 -0.367 -1.448 0.201 0.905 -1.644 -1.844 0.387 -1.340 0.093 1935 0.282 1.459 0.556 -0.154 -0.854 -0.269 0.142 -0.888 -0.400 -0.486 -1.276 -0.865 1936 -0.650 -2.150 0.688 -0.947 0.180 0.404 0.927 -0.784 -1.363 -1.785 -1.333 0.964 1937 0.886 1.585 0.028 0.463 1.043 -0.390 0.027 -0.019 0.763 -0.543 -0.515 -1.910 1938 0.541 -0.658 1.901 -1.497 0.765 -0.027 1.504 0.470 0.017 -0.184 -0.564 0.046 1939 0.015 -0.589 -1.591 0.632 -1.376 -1.070 -1.220 0.803 0.284 -0.671 -0.344 0.738 1940 -2.284 -1.005 -0.609 -1.221 0.586 0.395 -1.270 1.798 0.889 -0.005 0.670 -0.340 1941 -0.414 -0.129 1.063 -1.124 0.499 -0.212 0.476 -1.323 -0.592 0.839 0.849 1.153 1942 0.011 -0.035 2.760 -0.637 0.070 1.554 0.105 0.916 -0.388 -0.434 -2.067 -1.140 1943 -0.622 0.408 -1.759 -0.923 -0.753 0.729 0.045 1.560 0.344 0.308 0.944 -0.125 1944 0.575 0.417 -1.766 -0.603 0.070 0.603 0.209 0.400 -0.649 0.791 -1.595 0.087 1945 -0.255 -0.693 1.001 1.154 -0.128 -0.143 0.561 0.003 0.373 1.160 -1.132 -1.064 1946 0.840 0.999 1.456 -0.427 0.123 2.083 0.282 2.141 0.042 2.053 0.222 -1.225 1947 0.014 -1.787 -0.598 -0.572 1.663 0.022 -0.994 -1.095 -0.722 1.052 -1.835 0.158 1948 1.371 -0.320 0.539 1.846 -0.734 -0.459 0.002 -0.815 1.117 0.795 0.680 1.304 1949 1.669 0.573 0.578 -0.693 0.126 -2.120 0.095 1.215 -0.665 -0.202 0.483 0.109 1950 -1.006 0.371 0.053 0.697 1.226 0.995 -1.525 1.212 1.504 0.571 -0.526 0.517 1951 0.614 0.637 0.233 -0.987 0.819 0.301 -0.643 0.100 -1.927 -0.503 0.807 0.734 1952 1.025 0.406 -0.619 0.156 1.389 1.661 0.909 -1.283 -0.779 0.946 1.069 0.494 1953 -1.022 0.379 0.754 -1.749 -0.362 -0.279 0.728 0.797 0.891 0.097 -0.008 1.123 1954 0.587 0.168 1.408 1.072 2.391 -0.683 0.906 1.032 0.719 -2.070 0.098 -0.187 1955 0.953 0.444 1.236 -0.188 -0.257 0.439 -1.769 1.173 1.420 1.889 -0.716 -0.412 1956 -0.768 -0.397 1.121 -1.066 2.175 -0.621 0.824 -0.015 -1.050 1.997 -0.910 -2.221 1957 0.487 -0.651 -0.742 -0.515 -0.173 -1.066 1.143 0.233 -1.231 -0.162 -0.065 1.135 1958 0.604 -0.542 1.105 -1.012 1.253 0.941 -0.181 -0.480 -0.830 1.333 1.598 -0.061 1959 -0.153 1.850 -0.406 0.903 -0.322 -0.264 1.018 -1.043 -1.366 -1.518 -0.927 1.254 1960 -0.150 0.928 -1.046 -0.604 0.698 0.440 0.263 0.381 1.146 1.296 0.250 0.084 1961 -0.096 -0.615 0.685 0.929 1.187 1.279 0.485 0.638 0.829 0.794 1.024 -2.015 1962 -0.432 -0.215 0.280 2.892 -0.004 0.845 0.455 -0.083 1.087 0.236 0.252 -0.093 1963 -2.634 -1.407 -0.432 0.803 2.175 0.876 0.165 -0.063 -0.517 1.048 -1.163 0.292 1964 1.285 -0.100 -0.075 0.575 -0.054 -0.657 -1.585 0.883 0.110 0.710 -0.771 -0.429 1965 0.086 -0.544 -1.460 0.076 1.240 1.061 -1.034 0.063 -2.052 1.617 1.360 0.976 1966 0.643 2.318 -0.382 -1.284 0.212 -1.039 -1.543 0.344 0.407 0.168 0.285 -0.930 1967 1.629 0.675 0.605 0.637 -1.679 -0.741 0.066 0.359 -0.104 -0.400 0.776 0.001 1968 -0.997 -2.134 0.761 0.753 -1.747 -0.715 -1.736 -0.692 -0.514 1.007 -0.224 0.940 1969 0.409 1.342 1.010 -0.680 1.692 1.253 0.577 -2.212 -0.348 -0.684 -0.290 0.267 1970 -1.255 -0.504 -0.577 0.182 -0.283 -0.498 0.161 2.060 -1.093 0.506 0.244 0.336 1971 -0.231 -1.047 0.581 -0.142 0.065 1.078 -0.096 -0.901 -0.572 0.899 0.164 0.613 1972 1.140 -0.457 -1.272 1.744 0.790 1.508 0.127 0.743 -1.826 -0.172 0.406 0.127 1973 1.795 0.709 -0.313 -0.006 0.072 -0.462 0.624 -0.041 0.349 0.326 -0.582 0.164 1974 -2.167 0.244 -1.184 -0.664 0.331 -1.318 -0.296 -0.852 -0.200 -1.709 0.887 -0.087 1975 0.313 -0.117 -0.273 0.466 -0.667 -0.959 -0.936 0.109 0.159 -0.169 0.866 -0.560 1976 -0.383 1.026 0.746 -0.769 0.889 -0.285 -2.104 -0.432 -0.504 -1.292 0.416 -1.083 1977 -1.590 -0.412 1.384 0.334 -0.646 -0.558 -0.397 -0.053 2.111 1.268 -0.259 -0.276 1978 0.105 -0.592 -1.377 -1.101 0.358 1.958 -0.611 -0.470 -0.337 -1.105 0.069 2.008 1979 0.825 0.947 -0.730 -0.875 -0.705 1.596 -1.032 0.821 -0.278 0.199 1.602 0.461 1980 -1.443 -0.706 0.666 -1.312 1.526 1.310 0.228 -1.855 -1.151 0.128 0.800 -2.786 1981 -0.271 -0.831 0.426 -0.261 -0.627 -1.309 0.380 -0.228 0.132 -1.916 -0.302 1.244 1982 0.134 -0.979 0.729 1.200 0.377 1.975 -0.814 0.308 -0.403 -0.512 0.434 1.128 1983 -0.047 -0.612 -1.079 0.190 0.403 -0.950 -0.850 -0.805 -1.585 -0.835 0.176 -0.752 1984 -1.304 -0.452 -0.860 0.181 -1.789 0.412 0.688 0.482 -0.092 -2.050 0.497 0.854 1985 -0.659 -0.577 2.277 1.119 0.707 0.585 -0.660 0.551 -1.857 -0.271 -1.394 -0.890 1986 0.022 -1.570 -0.488 0.318 0.450 -0.174 0.206 0.502 -0.426 -1.001 -0.829 -0.237 1987 0.974 0.217 0.152 -1.139 1.580 0.833 -1.945 -1.323 1.607 0.458 -0.182 1.991 1988 1.419 -0.709 0.413 -0.229 0.308 0.106 1.248 1.504 0.460 -0.710 -0.772 -0.219 1989 2.124 1.033 -1.789 0.509 0.164 -1.279 0.430 1.360 0.194 0.949 0.200 -1.444 1990 0.833 2.407 -0.365 1.307 -0.460 -0.684 0.105 -0.142 -0.379 1.414 0.049 0.328 1991 -1.389 -0.887 1.744 0.016 0.332 -0.362 0.494 -1.677 -0.871 0.176 -1.145 1.031 1992 1.084 0.183 0.886 -0.252 -0.809 -0.427 -1.281 1.186 -0.800 0.871 1.170 0.255 1993 1.209 -0.460 0.300 -1.941 -0.201 -0.402 0.120 0.027 -1.041 0.546 1.089 0.865 1994 -0.052 -1.041 0.098 -0.709 0.687 -0.347 0.281 2.307 -0.432 0.523 1.115 0.611 1995 0.124 -1.520 -1.255 -1.020 0.280 -1.115 -0.694 -1.300 -0.110 0.257 -2.260 -1.766 1996 -0.478 0.774 -0.226 -1.404 -1.623 -1.189 0.023 0.732 -1.507 -0.951 -0.248 0.228 1997 -1.001 -0.511 -0.280 -0.546 0.816 -0.681 -0.089 -1.230 0.456 -1.908 1.930 1.407 1998 -0.315 0.444 0.723 0.655 1.296 -1.296 1.944 1.463 1.733 0.821 -0.544 0.392 1999 -0.133 1.290 1.882 0.555 -0.126 0.658 0.495 0.884 0.972 -0.236 1.264 -0.698 2000 0.434 -1.047 -0.077 -0.127 -1.064 0.148 0.921 0.024 0.686 -0.137 0.224 -0.970 2001 0.272 0.847 -0.827 0.625 -1.327 -0.044 1.477 0.908 2.217 0.126 -0.190 -0.240 2002 0.305 1.094 0.959 2.261 -0.694 -0.398 0.282 -1.788 1.347 -2.054 -1.632 0.545 2003 -0.093 -0.312 -1.204 -0.249 0.812 0.820 2.247 -0.925 -1.019 -0.692 0.225 1.073 2004 -0.968 -0.169 0.100 -1.635 0.823 1.630 -0.518 -1.211 0.838 1.189 0.750 0.062 2005 -0.816 -0.074 0.236 -0.659 -0.716 0.875 0.971 0.359 0.814 1.492 -2.407 -1.795 2006 -0.045 2.114 0.775 0.190 0.218 -0.985 -0.189 0.255 1.223 0.517 -2.743 1.037 2007 0.977 0.355 -1.565 -1.504 -0.931 0.122 -0.203 -0.455 0.732 0.275 -0.064 0.023 2008 1.081 -0.349 -1.243 1.480 -1.456 -1.220 1.271 -1.460 0.146 0.379 -0.512 0.488 2009 -0.313 1.587 -0.566 -0.135 -0.379 -1.862 -0.806 0.399 -0.328 -1.883 1.018 -1.322 2010 0.041 0.420 2.531 -0.751 -2.503 0.590 2.683 0.548 0.590 0.492 -1.027 -1.239 2011 -1.093 1.452 0.093 -0.368 0.090 0.783 1.604 -0.023 2.109 1.443 0.480 -0.046 2012 -1.039 0.647 1.393 0.691 -1.883 -1.253 1.944 1.508 0.759 -2.089 -2.777 -0.459 2013 -0.677 0.745 1.168 0.584 -1.772 -0.183 1.582 -0.474 1.426 0.819 -0.736 -1.890 2014 0.456 -0.037 -0.051 -0.468 -1.299 -0.498 1.340 -1.088 -0.408 -0.821 -0.298 -0.630 2015 -0.412 -0.500 0.507 0.460 1.103 -0.065 0.099 -1.030 0.169 -0.747 0.603 0.717