WP_INDEX (20th Century Reanalysis V3) ** undef = -9.99e+08 year Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 1836 0.212 0.267 0.819 0.474 0.301 -0.533 0.123 -0.534 0.212 0.358 -0.231 0.436 1837 0.374 1.050 1.630 0.588 1.511 -0.286 0.263 -0.405 -0.202 0.293 -0.382 0.426 1838 0.726 0.603 0.752 0.679 -0.054 -0.771 0.608 -0.696 -0.214 -0.781 -0.060 -0.391 1839 0.634 0.795 1.373 0.057 0.881 -0.340 1.192 -1.942 -0.420 0.193 0.068 0.376 1840 0.857 0.703 0.783 0.648 0.637 -0.661 0.491 0.105 0.416 0.097 -0.466 -0.188 1841 0.514 0.060 1.739 -0.712 0.486 -0.766 0.989 -0.236 0.118 0.072 -0.390 0.747 1842 1.036 1.485 1.281 -0.146 1.394 -0.519 1.031 -1.796 0.209 0.231 -0.236 0.467 1843 1.143 0.689 0.484 -0.540 0.740 -0.208 1.339 -0.882 0.038 -0.137 -0.001 0.503 1844 0.414 0.639 1.151 -0.233 0.693 -0.389 0.654 -0.624 0.104 0.502 0.317 0.692 1845 0.907 1.714 1.396 -0.501 0.636 -0.554 0.842 -1.043 0.121 0.429 0.369 0.855 1846 1.020 0.960 0.911 0.102 0.991 -0.334 1.019 -1.371 0.052 0.264 0.376 -0.142 1847 0.675 1.467 1.685 0.379 1.378 -0.498 1.861 -1.188 0.238 0.352 -0.132 0.940 1848 1.656 1.949 2.161 0.419 1.163 -0.436 1.217 -0.426 -0.137 0.708 0.008 0.290 1849 1.248 1.746 1.963 0.483 0.973 0.109 1.065 -0.914 -0.039 0.643 0.364 -0.365 1850 0.950 1.458 0.995 -0.006 0.951 -0.454 1.463 -1.065 -0.030 0.872 0.352 0.438 1851 1.281 2.072 2.038 -0.351 0.900 -0.340 1.740 -1.262 -0.189 0.264 -0.645 0.064 1852 0.741 1.912 1.537 0.901 1.981 -0.083 1.174 -0.864 -0.252 0.154 -0.436 0.223 1853 1.745 1.825 2.081 0.232 1.522 -0.059 0.886 -0.824 0.223 -0.119 -0.151 0.693 1854 0.972 1.267 1.765 0.484 0.222 -0.354 1.071 -0.599 -0.227 -0.251 0.055 0.290 1855 0.308 0.272 1.362 -0.284 0.542 -0.321 1.217 -1.330 0.371 0.634 -0.139 -0.001 1856 1.383 2.105 2.653 0.387 1.068 -0.071 1.336 -0.537 -0.221 0.051 0.286 -0.080 1857 0.531 0.416 1.638 -0.186 1.111 -0.681 0.307 -0.493 -0.347 0.421 0.746 0.777 1858 2.103 2.338 2.489 0.024 0.751 -0.369 1.591 -1.070 0.122 0.176 -1.056 -0.169 1859 1.264 1.713 1.912 -0.585 0.389 -0.639 1.813 -0.451 0.055 0.581 -0.101 -0.105 1860 0.863 1.685 2.675 0.251 0.509 -0.653 0.507 -0.083 0.239 0.598 0.519 0.223 1861 1.165 2.197 2.309 0.536 0.666 -0.195 0.608 -0.498 0.229 0.213 -0.198 0.392 1862 0.231 0.603 1.223 0.558 0.580 -0.482 0.294 -0.442 0.477 0.776 0.692 0.928 1863 1.091 1.633 1.912 0.989 0.682 -1.080 1.275 -1.098 0.245 0.268 -0.133 -0.101 1864 0.673 2.163 1.457 0.456 0.621 -0.906 0.980 -0.869 0.286 0.244 -0.498 0.819 1865 0.460 1.519 2.034 -0.057 0.338 -0.874 1.359 -0.575 0.408 0.296 0.609 0.305 1866 1.391 1.104 1.583 0.616 0.640 -0.347 1.886 -0.657 0.114 0.377 0.333 -0.522 1867 0.311 2.117 1.682 0.096 0.514 -0.615 0.004 -0.722 0.448 0.412 -0.236 -0.156 1868 0.763 1.705 1.920 0.488 0.562 -0.562 1.512 -1.537 0.327 0.759 -0.056 0.605 1869 1.264 1.054 1.746 0.404 0.186 -1.144 1.105 -1.230 0.193 -0.054 0.250 0.797 1870 0.865 0.961 0.709 -0.097 1.263 -0.566 0.896 -0.782 0.647 0.638 0.635 -0.150 1871 1.283 1.765 1.567 0.004 1.045 -0.707 0.845 0.201 0.957 1.058 -0.049 0.131 1872 1.039 1.428 1.077 -0.831 -0.301 -1.046 0.938 -0.659 -0.159 0.514 -0.408 0.130 1873 1.145 0.685 0.940 -0.832 -0.801 -1.221 1.170 -0.810 0.322 -0.047 -0.916 -0.679 1874 0.642 0.396 1.113 -1.176 0.048 -0.801 1.295 -0.365 0.614 0.802 -0.648 -0.116 1875 0.048 0.431 1.497 0.085 0.686 -0.291 0.956 -0.617 0.129 0.728 0.018 0.008 1876 1.135 1.885 0.474 -0.801 0.727 -0.667 0.505 -0.484 0.252 0.411 0.003 -0.109 1877 0.641 1.578 1.119 -0.469 0.681 -0.251 0.005 -1.025 0.747 1.027 0.606 1.336 1878 1.978 1.635 1.278 -0.498 -0.014 -1.195 1.120 -0.982 0.484 0.775 0.577 0.562 1879 1.462 1.032 1.839 -0.287 0.009 -0.687 0.217 -0.394 0.422 1.529 0.374 0.426 1880 0.572 2.601 1.595 -0.098 0.290 -1.129 0.317 0.345 1.059 0.184 -0.831 -0.296 1881 -0.446 0.116 1.579 -0.320 0.473 -0.111 0.642 1.567 1.001 0.509 -0.637 1.331 1882 0.698 0.600 0.032 -1.395 -1.062 -0.444 0.249 -0.015 0.079 0.817 1.304 0.803 1883 0.743 1.082 0.459 0.588 0.045 -0.236 -0.502 -0.032 0.902 1.778 0.010 0.291 1884 0.284 -1.065 0.491 -0.140 0.644 -1.175 -0.092 -0.601 -0.273 0.099 -0.439 -1.030 1885 0.109 -1.514 -1.578 -0.171 0.811 1.129 0.669 -0.492 -0.932 -0.746 -0.580 0.311 1886 -1.238 0.181 1.195 -1.090 -0.656 -0.765 1.096 -0.253 -0.088 0.827 0.423 -0.274 1887 0.477 1.337 0.018 -1.730 -0.154 -1.437 1.775 -0.759 0.049 -0.027 -1.116 -1.127 1888 -0.914 -0.014 0.822 -1.809 0.652 0.580 0.239 -0.897 0.973 -0.851 -1.480 -0.018 1889 0.153 0.549 1.687 -0.282 -0.288 0.221 0.461 0.820 -0.673 -0.583 -0.104 1.640 1890 0.309 0.721 0.724 -0.899 0.822 -0.281 0.908 -0.079 -0.908 0.355 -0.449 0.102 1891 0.362 0.907 0.631 0.266 0.605 -1.865 -0.085 -0.626 -0.189 0.186 -0.558 0.041 1892 0.361 0.618 0.601 -0.007 0.150 -0.512 -0.251 -0.044 0.888 -0.387 -0.174 -0.896 1893 -0.655 -0.101 -0.422 -0.784 -0.670 -0.562 0.230 1.359 -0.134 0.768 -0.750 -0.786 1894 0.228 1.000 1.009 -1.441 -0.385 0.724 0.009 0.910 0.182 1.294 -0.044 0.778 1895 -0.469 -0.932 0.356 -0.754 -0.065 -0.693 0.073 0.149 -0.100 -0.112 0.442 0.525 1896 -0.189 0.301 1.042 -0.106 0.092 -0.758 0.312 0.371 -0.747 0.068 -0.864 0.531 1897 1.257 1.606 1.632 -0.403 0.158 -0.981 1.446 0.036 0.058 -0.164 0.106 0.705 1898 1.512 -0.489 1.897 -0.392 0.897 0.331 0.756 -0.472 -0.925 -0.572 0.242 0.270 1899 0.036 -0.504 -0.223 0.057 -0.078 -0.901 0.683 -0.294 -0.450 0.245 0.116 -0.227 1900 0.763 0.506 -0.267 -0.194 0.305 -1.129 -0.784 0.234 0.124 1.049 -0.490 0.236 1901 -0.003 -1.063 -0.400 -1.877 -1.034 -1.605 1.407 -0.155 0.592 0.421 -0.421 -0.535 1902 -0.351 0.333 0.951 1.322 0.716 0.276 -0.407 0.656 0.698 1.052 0.701 0.234 1903 0.986 0.949 1.571 -0.726 -0.079 -0.016 -0.753 0.104 -0.117 -0.731 -0.590 -0.213 1904 1.047 -0.271 0.766 -0.137 0.369 -0.172 -1.601 0.104 -0.657 -0.200 0.098 -0.274 1905 0.790 -1.057 -0.217 1.184 0.066 -0.938 -0.367 -0.261 -0.285 -0.695 0.338 -0.055 1906 -0.191 -0.937 -0.318 0.125 -0.261 -0.643 0.194 -0.531 -0.556 -0.464 -0.551 -0.713 1907 0.027 -0.282 1.106 0.264 0.570 0.033 -0.477 0.854 -1.185 -0.566 0.358 0.245 1908 1.132 0.334 0.771 -0.467 -0.569 -0.611 -0.259 1.299 -1.311 -0.425 -0.202 0.345 1909 -0.065 -0.051 1.115 -0.874 0.037 0.346 0.185 0.384 -0.660 -0.179 0.049 -1.105 1910 1.489 -0.512 -0.057 -0.911 0.635 -0.114 0.012 -1.628 -0.609 0.562 -0.683 -0.613 1911 -0.444 0.930 -0.046 -1.097 1.355 0.607 -0.398 -0.894 1.133 0.775 -1.178 1.148 1912 0.237 0.824 2.145 1.341 0.327 -1.082 -0.341 -0.301 -0.715 -0.576 0.710 0.223 1913 0.693 -0.321 -0.636 0.415 0.641 0.009 -0.072 -1.162 -0.937 -0.392 0.746 -0.403 1914 0.925 -1.214 1.382 -0.224 1.355 -0.604 -0.401 0.312 -0.451 0.098 -0.507 1.209 1915 0.091 1.204 -1.244 1.746 -0.478 0.255 -0.058 -0.209 -0.272 0.555 1.074 1.196 1916 0.860 -0.546 -0.857 0.494 0.294 -0.285 0.405 -0.147 0.612 1.077 1.024 -0.975 1917 -0.423 -0.698 1.511 -0.408 0.698 0.278 0.363 0.057 0.646 -0.039 -0.451 -2.900 1918 -0.849 1.125 0.875 -1.102 0.123 0.113 -1.170 0.482 -0.228 -0.665 -0.007 0.776 1919 0.459 1.417 1.337 -0.830 2.138 -0.306 0.989 -0.408 -0.067 -1.192 -0.395 -0.748 1920 -0.533 0.180 1.847 -0.598 -1.819 -1.046 -0.259 0.330 -0.617 0.299 1.030 0.245 1921 1.951 -0.394 -0.020 -1.022 -0.875 -0.848 0.071 0.390 0.037 0.453 -0.686 0.616 1922 0.101 1.926 -0.087 -0.884 0.349 -0.336 0.569 1.113 0.166 -0.070 -0.723 -1.854 1923 1.656 -0.940 0.812 0.999 -0.102 -0.156 -0.456 0.384 1.058 -0.547 -0.372 1.533 1924 -0.143 0.955 -0.145 -1.007 0.898 -1.304 -1.112 -0.315 -0.389 -0.055 -1.187 -1.788 1925 -0.586 -0.690 -0.656 -0.236 -0.374 -0.843 0.246 0.016 0.063 -1.532 -0.548 -1.409 1926 0.549 0.276 0.091 1.438 -0.960 -0.100 -0.320 -0.821 -1.244 -1.839 -0.390 -1.014 1927 0.289 -0.611 0.080 -2.409 0.302 1.781 0.922 0.026 -1.497 -0.666 -1.766 -0.126 1928 0.916 0.095 -1.274 0.024 1.364 -0.003 0.411 -0.135 1.460 1.728 0.518 0.530 1929 -1.495 -1.601 1.064 0.031 -0.168 -0.405 -0.108 -0.277 -0.928 0.451 0.451 0.304 1930 -0.381 -0.105 0.162 -0.142 1.179 0.144 -0.158 -0.670 -0.270 -0.094 -1.254 0.399 1931 0.994 1.141 -0.276 0.906 0.366 -1.129 0.699 0.495 -0.419 1.288 0.347 1.326 1932 1.276 -0.674 -1.099 0.959 0.741 -0.853 -0.226 -0.682 0.519 -0.463 -1.158 0.329 1933 1.237 -0.173 0.298 0.363 -0.132 -0.261 1.272 0.020 -0.760 -0.720 -0.563 -2.065 1934 -1.011 -1.604 -1.137 0.474 -1.315 0.220 0.597 -1.530 -1.834 0.515 -1.145 0.197 1935 0.338 1.396 0.494 -0.017 -0.594 -0.088 -0.120 -0.887 -0.424 -0.620 -1.248 -0.693 1936 -0.618 -2.228 0.577 0.988 0.387 0.520 0.693 -1.289 -1.316 -1.568 -1.127 1.010 1937 0.959 1.546 0.129 -0.360 1.310 -0.328 -0.045 0.645 0.741 -0.499 -0.406 -1.901 1938 0.596 -0.704 1.824 1.534 0.712 -0.010 1.395 0.101 0.109 -0.034 -0.380 0.294 1939 0.060 -0.661 -1.443 -0.413 -1.349 -1.003 -1.207 0.632 0.325 -0.668 -0.266 0.904 1940 -2.313 -1.073 -0.808 1.191 0.383 0.588 -1.472 1.554 0.672 0.087 0.702 -0.266 1941 -0.377 -0.225 0.931 1.049 0.620 0.002 0.178 -0.811 -0.642 0.962 0.672 1.277 1942 0.062 -0.146 3.075 0.826 -0.052 1.588 0.103 1.179 -0.383 -0.457 -2.174 -1.267 1943 -0.612 0.333 -1.626 1.057 -0.683 0.710 0.139 1.419 0.343 0.277 1.091 -0.042 1944 0.622 0.342 -1.417 0.751 -0.010 0.535 0.203 0.221 -0.534 0.716 -1.301 0.260 1945 -0.213 -0.761 0.776 -1.230 0.138 -0.058 0.391 -0.106 0.254 1.109 -1.314 -0.948 1946 0.910 0.903 1.265 0.631 0.202 2.062 0.123 1.411 0.057 2.030 0.051 -1.382 1947 0.052 -1.903 -0.774 0.601 1.952 0.155 -1.208 -0.685 -0.761 1.083 -1.366 0.252 1948 1.449 -0.356 0.529 -1.947 -0.836 -0.429 -0.097 -0.910 0.999 0.863 0.724 1.233 1949 1.754 0.526 -0.088 0.789 0.128 -2.249 -0.093 0.702 -0.556 -0.135 0.580 0.242 1950 -1.001 0.335 -0.282 -0.555 1.137 0.901 -1.406 1.665 1.371 0.706 -0.794 0.437 1951 0.675 0.586 0.588 1.014 1.036 0.380 -0.760 -0.179 -1.753 -0.340 0.796 0.629 1952 1.120 0.294 -0.638 -0.013 1.295 1.960 0.768 -1.356 -0.692 0.912 1.302 0.641 1953 -1.013 0.301 0.930 1.807 0.092 -0.133 0.664 1.057 0.879 0.188 0.347 1.195 1954 0.657 0.141 1.413 -1.234 2.651 -0.519 0.661 0.987 0.641 -2.005 0.333 -0.273 1955 1.027 0.366 1.560 0.372 -0.086 0.578 -1.729 0.502 1.282 1.855 -0.745 -0.686 1956 -0.729 -0.453 1.208 1.119 2.032 -0.623 0.693 0.078 -1.148 1.842 -0.780 -2.158 1957 0.550 -0.717 -1.143 0.691 0.177 -0.828 1.134 0.487 -1.309 -0.044 0.073 0.982 1958 0.667 -0.603 1.110 1.158 1.477 1.134 -0.296 -0.963 -0.899 1.265 1.526 -0.016 1959 -0.090 1.821 -0.559 -0.951 -0.174 -0.249 1.092 -1.356 -1.473 -1.439 -0.654 1.326 1960 -0.113 0.846 -0.772 0.625 0.838 0.586 0.073 0.436 1.051 1.282 0.271 0.220 1961 -0.041 -0.673 0.348 -0.907 1.175 1.184 0.448 0.364 0.788 0.738 0.933 -2.070 1962 -0.406 -0.290 0.269 -3.102 -0.066 0.821 0.305 0.285 1.034 0.313 0.412 -0.168 1963 -2.671 -1.425 -0.334 -0.716 1.991 0.965 0.096 -0.301 -0.801 0.971 -1.111 0.378 1964 1.348 -0.160 -0.247 -0.307 -0.463 -0.481 -1.655 1.492 -0.029 0.742 -0.731 -0.545 1965 0.142 -0.649 -1.768 -0.108 1.181 1.360 -1.142 0.758 -1.906 1.560 1.394 0.863 1966 0.722 2.220 -0.103 1.207 0.155 -0.915 -1.484 0.316 0.318 -0.023 0.195 -0.828 1967 1.737 0.621 0.624 -0.470 -1.830 -0.645 0.045 0.895 -0.128 -0.303 0.926 -0.065 1968 -0.994 -2.164 0.959 -0.716 -1.751 -0.692 -1.806 -0.227 -0.362 1.150 -0.082 0.711 1969 0.479 1.236 0.907 0.916 1.733 1.561 0.472 -2.291 -0.535 -0.598 -0.198 0.473 1970 -1.254 -0.615 -1.138 -0.027 -0.459 -0.432 -0.083 1.667 -0.971 0.566 0.099 0.354 1971 -0.199 -1.110 0.385 0.110 0.263 1.112 -0.330 -0.375 -0.672 0.899 0.261 0.586 1972 1.216 -0.483 -1.237 -1.785 0.683 1.582 -0.074 1.162 -1.744 -0.069 0.599 -0.006 1973 1.889 0.631 -0.744 -0.039 0.087 -0.422 0.394 0.254 0.114 0.294 -0.549 0.241 1974 -2.205 0.195 -1.431 0.639 0.434 -1.229 -0.587 -0.187 -0.178 -1.496 0.999 0.164 1975 0.356 -0.183 -0.296 -0.467 -0.483 -1.047 -1.015 0.382 0.230 -0.213 0.653 -0.503 1976 -0.350 0.987 0.675 0.962 0.952 -0.159 -2.166 0.658 -0.563 -1.139 0.592 -0.907 1977 -1.584 -0.524 1.255 -0.291 -0.461 -0.475 -0.422 0.235 1.985 1.303 -0.272 -0.324 1978 0.180 -0.671 -1.482 1.086 0.185 1.893 -0.475 0.325 -0.382 -0.985 0.121 2.000 1979 0.913 0.920 -1.066 0.950 -0.408 1.557 -1.001 1.554 -0.352 0.334 1.452 0.322 1980 -1.436 -0.785 0.322 1.423 1.563 1.234 0.128 -2.172 -1.077 0.330 0.871 -2.842 1981 -0.238 -0.919 0.073 0.315 -0.408 -1.284 0.366 -0.110 0.119 -1.779 0.002 1.223 1982 0.201 -1.010 0.737 -1.227 0.403 2.170 -1.068 0.355 -0.310 -0.566 0.538 1.159 1983 -0.012 -0.698 -1.404 -0.098 0.407 -0.738 -0.997 -0.815 -1.596 -0.639 0.366 -0.711 1984 -1.307 -0.534 -1.433 -0.180 -1.540 0.394 0.708 0.877 -0.264 -1.898 0.713 0.874 1985 -0.621 -0.618 2.206 -1.144 0.819 0.660 -0.761 0.628 -1.936 -0.236 -1.211 -0.692 1986 0.081 -1.627 -0.655 -0.397 0.379 -0.187 0.028 0.414 -0.614 -0.835 -0.633 -0.054 1987 1.058 0.143 0.001 1.233 1.322 0.742 -2.132 -0.888 1.624 0.569 -0.043 2.031 1988 1.516 -0.786 0.272 0.315 0.561 0.186 0.941 1.040 0.434 -0.636 -0.583 -0.130 1989 2.211 0.990 -1.501 -0.468 0.169 -1.320 0.383 1.334 0.157 0.919 0.025 -1.451 1990 0.908 2.397 -0.493 -1.514 -0.258 -0.753 0.130 0.499 -0.338 1.210 -0.363 0.158 1991 -1.418 -0.949 1.696 0.124 0.457 -0.379 0.100 -1.502 -0.948 0.109 -0.924 1.073 1992 1.154 0.132 0.606 0.063 -0.657 -0.252 -1.407 1.526 -0.777 0.846 1.207 0.209 1993 1.272 -0.524 -0.124 1.902 0.232 -0.292 -0.166 0.148 -1.097 0.646 1.064 0.921 1994 0.011 -1.098 -0.068 0.651 0.713 -0.458 0.223 2.013 -0.259 0.494 0.795 0.790 1995 0.170 -1.566 -1.006 1.039 0.256 -1.135 -0.720 -0.906 -0.204 0.233 -2.235 -1.626 1996 -0.439 0.725 -0.346 1.293 -1.337 -1.295 -0.109 0.310 -1.422 -0.927 -0.145 0.031 1997 -1.008 -0.563 -0.146 0.549 1.082 -0.621 -0.260 -1.233 0.446 -1.831 1.685 1.382 1998 -0.277 0.396 0.439 -0.374 1.180 -1.484 1.656 0.555 1.623 0.760 -0.257 0.395 1999 -0.107 1.205 1.763 -0.504 -0.079 0.702 0.320 1.157 0.820 -0.266 1.091 -0.688 2000 0.462 -1.153 -0.547 0.013 -0.980 0.094 0.802 -0.331 0.563 0.018 0.514 -0.720 2001 0.323 0.733 -0.789 -0.616 -1.316 0.014 1.175 0.236 2.013 0.072 -0.067 -0.099 2002 0.345 1.060 1.074 -2.384 -0.450 -0.391 0.123 -1.696 1.149 -1.906 -1.258 0.751 2003 -0.053 -0.346 -1.234 0.442 0.646 0.807 1.963 -0.611 -0.965 -0.665 0.085 1.189 2004 -0.966 -0.262 0.203 1.717 0.662 1.542 -0.579 -0.369 0.849 1.207 0.715 0.057 2005 -0.809 -0.150 0.178 0.624 -0.478 0.946 0.910 0.337 0.783 1.433 -2.350 -1.565 2006 -0.018 2.059 1.024 -0.246 0.083 -1.116 -0.344 -0.549 1.177 0.478 -2.805 1.159 2007 1.014 0.300 -1.321 1.475 -0.933 -0.068 -0.254 -0.455 0.610 0.301 0.161 0.060 2008 1.156 -0.405 -0.938 -1.476 -1.131 -1.472 1.187 -1.674 0.279 0.315 -0.429 0.195 2009 -0.300 1.520 -0.139 0.230 -0.540 -1.800 -0.943 0.304 -0.299 -1.755 0.913 -1.289 2010 0.081 0.329 2.500 0.886 -2.267 0.336 2.371 0.324 0.562 0.496 -1.120 -1.690 2011 -1.091 1.441 -0.079 0.252 0.327 0.903 1.345 -0.459 2.197 1.407 0.359 0.043 2012 -1.042 0.549 1.603 -0.852 -1.934 -1.392 1.837 0.771 0.950 -2.198 -2.759 -0.488 2013 -0.668 0.670 1.425 -1.037 -1.790 -0.378 1.552 -0.724 1.454 0.681 -0.896 -2.054 2014 0.521 -0.081 -0.081 0.543 -1.405 -0.801 1.251 -1.544 -0.511 -0.854 -0.278 -0.587 2015 -0.415 -0.503 0.824 -0.338 1.183 -0.125 -0.145 -1.874 0.285 -0.686 0.414 0.777