https://www.ncdc.noaa.gov/teleconnections/ao/ Arctic Oscillation (AO) Date Value 1950 01 -0.060 1950 02 0.627 1950 03 -0.008 1950 04 0.555 1950 05 0.072 1950 06 0.539 1950 07 -0.802 1950 08 -0.851 1950 09 0.358 1950 10 -0.379 1950 11 -0.515 1950 12 -1.928 1951 01 -0.085 1951 02 -0.400 1951 03 -1.934 1951 04 -0.776 1951 05 -0.863 1951 06 -0.918 1951 07 0.090 1951 08 -0.377 1951 09 -0.818 1951 10 -0.213 1951 11 -0.069 1951 12 1.987 1952 01 0.368 1952 02 -1.747 1952 03 -1.859 1952 04 0.539 1952 05 -0.774 1952 06 -0.441 1952 07 0.383 1952 08 -0.030 1952 09 -0.383 1952 10 -0.437 1952 11 -1.891 1952 12 -1.827 1953 01 -1.036 1953 02 -0.249 1953 03 1.068 1953 04 -1.256 1953 05 -0.562 1953 06 0.023 1953 07 0.333 1953 08 0.085 1953 09 0.662 1953 10 -0.194 1953 11 0.354 1953 12 0.575 1954 01 -0.148 1954 02 -0.181 1954 03 0.476 1954 04 0.512 1954 05 -1.656 1954 06 -0.268 1954 07 0.341 1954 08 -0.122 1954 09 0.301 1954 10 0.513 1954 11 -0.328 1954 12 0.553 1955 01 -1.163 1955 02 -1.542 1955 03 -1.568 1955 04 0.194 1955 05 0.242 1955 06 -0.266 1955 07 0.332 1955 08 0.760 1955 09 0.357 1955 10 0.099 1955 11 -1.342 1955 12 -0.444 1956 01 -1.204 1956 02 -2.029 1956 03 0.470 1956 04 -0.868 1956 05 1.391 1956 06 0.280 1956 07 -0.215 1956 08 -0.652 1956 09 -0.202 1956 10 1.139 1956 11 -0.066 1956 12 0.001 1957 01 2.062 1957 02 -1.513 1957 03 -2.013 1957 04 0.238 1957 05 -0.966 1957 06 -0.760 1957 07 -0.646 1957 08 0.097 1957 09 -0.956 1957 10 0.903 1957 11 -1.380 1957 12 0.828 1958 01 -1.438 1958 02 -2.228 1958 03 -2.522 1958 04 -0.360 1958 05 -0.336 1958 06 -1.149 1958 07 -0.684 1958 08 -0.755 1958 09 -0.012 1958 10 0.770 1958 11 -0.011 1958 12 -1.687 1959 01 -2.013 1959 02 2.544 1959 03 1.432 1959 04 0.119 1959 05 -0.341 1959 06 -0.033 1959 07 0.1 05 1959 08 -0.745 1959 09 -0.281 1959 10 -0.249 1959 11 -1.411 1959 12 -0.042 1960 01 -2.484 1960 02 -2.212 1960 03 -1.625 1960 04 -0.297 1960 05 -0.857 1960 06 0. 05 5 1960 07 -0.619 1960 08 -1.008 1960 09 -0.382 1960 10 -1.187 1960 11 -0.553 1960 12 -0.343 1961 01 -1.506 1961 02 0.621 1961 03 0.341 1961 04 -0.237 1961 05 0.157 1961 06 0.837 1961 07 -0.108 1961 08 0.013 1961 09 0.815 1961 10 0.203 1961 11 -0.010 1961 12 -1.668 1962 01 1.645 1962 02 -0.358 1962 03 -2.848 1962 04 1.169 1962 05 0.068 1962 06 0.287 1962 07 -0.927 1962 08 0.152 1962 09 -0. 05 6 1962 10 -0.016 1962 11 -1.112 1962 12 -0.711 1963 01 -3.311 1963 02 -1.721 1963 03 0.724 1963 04 -0.348 1963 05 0.771 1963 06 -0.585 1963 07 -0.303 1963 08 -0.625 1963 09 0.083 1963 10 1.069 1963 11 -0.419 1963 12 -1.178 1964 01 0.385 1964 02 -0.575 1964 03 -0.558 1964 04 0.663 1964 05 1.174 1964 06 0.142 1964 07 0.734 1964 08 -1.207 1964 09 -0.227 1964 10 0.342 1964 11 -0.344 1964 12 -0.246 1965 01 -1.046 1965 02 -2.084 1965 03 -0.9 05 1965 04 0.568 1965 05 -0.153 1965 06 0.038 1965 07 -0.510 1965 08 -0.255 1965 09 -0.698 1965 10 0.394 1965 11 -1.341 1965 12 0.163 1966 01 -3.232 1966 02 -1.438 1966 03 -0.911 1966 04 -1.837 1966 05 1.124 1966 06 0.408 1966 07 0.011 1966 08 -0.945 1966 09 0.011 1966 10 -1.077 1966 11 0.111 1966 12 -1.401 1967 01 -0.576 1967 02 1.180 1967 03 1.967 1967 04 1.700 1967 05 0.127 1967 06 0.647 1967 07 0.259 1967 08 -0.293 1967 09 0.133 1967 10 1.299 1967 11 0.334 1967 12 -0.347 1968 01 -0.409 1968 02 -2.154 1968 03 1.741 1968 04 0.328 1968 05 -0.241 1968 06 0.420 1968 07 -0.836 1968 08 -0.671 1968 09 -1.009 1968 10 -1.013 1968 11 -2.183 1968 12 -0.783 1969 01 -2.967 1969 02 -3.114 1969 03 -1.582 1969 04 0.438 1969 05 -0.720 1969 06 -0.348 1969 07 0.410 1969 08 -0.782 1969 09 -0.083 1969 10 0.098 1969 11 0.326 1969 12 -1.856 1970 01 -2.412 1970 02 -1.325 1970 03 -2.084 1970 04 0.302 1970 05 0.531 1970 06 0.875 1970 07 0.139 1970 08 -0.263 1970 09 0.030 1970 10 0.098 1970 11 0.378 1970 12 -0.399 1971 01 -0.163 1971 02 -0.922 1971 03 -1.091 1971 04 -0.583 1971 05 0.679 1971 06 -0.668 1971 07 -0.578 1971 08 0.818 1971 09 0.153 1971 10 1.185 1971 11 0.419 1971 12 0.824 1972 01 0.166 1972 02 -0.195 1972 03 -0.141 1972 04 1.007 1972 05 0.140 1972 06 -0.049 1972 07 -0.553 1972 08 -0.082 1972 09 -0.920 1972 10 0.392 1972 11 -0.380 1972 12 1.238 1973 01 1.232 1973 02 0.786 1973 03 0.537 1973 04 -1.126 1973 05 0.073 1973 06 0.531 1973 07 0.270 1973 08 0.313 1973 09 0.114 1973 10 0.337 1973 11 0.002 1973 12 -0.181 1974 01 0.232 1974 02 -0.489 1974 03 -0.746 1974 04 0.309 1974 05 -0.507 1974 06 -0.048 1974 07 0.390 1974 08 -0.533 1974 09 -0.136 1974 10 -1.024 1974 11 -0.435 1974 12 0.556 1975 01 1.595 1975 02 0.194 1975 03 0.151 1975 04 0.409 1975 05 -0.614 1975 06 -0.323 1975 07 0.345 1975 08 0.130 1975 09 1.278 1975 10 0.138 1975 11 0.619 1975 12 1.290 1976 01 0.034 1976 02 1.656 1976 03 0.587 1976 04 0.440 1976 05 0.060 1976 06 0.328 1976 07 -0.325 1976 08 0.559 1976 09 -0.743 1976 10 -0.804 1976 11 -0.087 1976 12 -2.074 1977 01 -3.767 1977 02 -2.010 1977 03 0.344 1977 04 1.329 1977 05 0.104 1977 06 -0.226 1977 07 -0.492 1977 08 -1.412 1977 09 0.586 1977 10 -0.009 1977 11 0.605 1977 12 -0.240 1978 01 -0.347 1978 02 -3.014 1978 03 0.502 1978 04 -0.967 1978 05 0.059 1978 06 0.635 1978 07 -0.604 1978 08 -0.354 1978 09 -0.099 1978 10 0.895 1978 11 2.470 1978 12 -0.980 1979 01 -2.233 1979 02 -0.697 1979 03 -0.814 1979 04 -1.157 1979 05 -0.250 1979 06 0.933 1979 07 0.039 1979 08 -0.684 1979 09 -0.046 1979 10 -1.243 1979 11 0.475 1979 12 1.295 1980 01 -2.066 1980 02 -0.934 1980 03 -1.433 1980 04 -0.419 1980 05 -1.155 1980 06 0.721 1980 07 -0.622 1980 08 -0.185 1980 09 0.313 1980 10 -0.521 1980 11 -1.361 1980 12 -0.057 1981 01 -0.116 1981 02 -0.332 1981 03 -1.645 1981 04 0.430 1981 05 0.180 1981 06 -0.438 1981 07 0.561 1981 08 -0.244 1981 09 -1.040 1981 10 -1.167 1981 11 -0.188 1981 12 -1.216 1982 01 -0.883 1982 02 0.974 1982 03 1.074 1982 04 1.454 1982 05 -0.209 1982 06 -1.180 1982 07 0.005 1982 08 0.362 1982 09 0.558 1982 10 -0.211 1982 11 0.661 1982 12 0.967 1983 01 1.359 1983 02 -1.806 1983 03 -0.567 1983 04 -0.738 1983 05 -0.441 1983 06 0.313 1983 07 0.131 1983 08 1.098 1983 09 0.167 1983 10 1.369 1983 11 -0.688 1983 12 0.186 1984 01 0.905 1984 02 -0.303 1984 03 -2.386 1984 04 -0.284 1984 05 0.479 1984 06 0.007 1984 07 0.019 1984 08 0.466 1984 09 -0.413 1984 10 -0.270 1984 11 -0.966 1984 12 0.446 1985 01 -2.806 1985 02 -1.440 1985 03 0.551 1985 04 0.652 1985 05 -0.432 1985 06 -0.347 1985 07 -0.390 1985 08 -0.001 1985 09 0.114 1985 10 1.035 1985 11 -1.218 1985 12 -1.948 1986 01 -0.568 1986 02 -2.904 1986 03 1.931 1986 04 0.103 1986 05 0.367 1986 06 0.535 1986 07 -0.008 1986 08 -0.826 1986 09 -0.023 1986 10 1.425 1986 11 0.926 1986 12 0.060 1987 01 -1.148 1987 02 -1.473 1987 03 -1.746 1987 04 0.387 1987 05 0.325 1987 06 -0.710 1987 07 -0.466 1987 08 -0.836 1987 09 0.287 1987 10 -0.080 1987 11 -0.536 1987 12 -0.534 1988 01 0.265 1988 02 -1.066 1988 03 -0.197 1988 04 -0.561 1988 05 -0.846 1988 06 0.061 1988 07 -0.143 1988 08 0.255 1988 09 1.039 1988 10 0.032 1988 11 -0.035 1988 12 1.679 1989 01 3.106 1989 02 3.279 1989 03 1.530 1989 04 -0.250 1989 05 0.889 1989 06 0.345 1989 07 0.866 1989 08 0.551 1989 09 0.703 1989 10 0.991 1989 11 0.034 1989 12 -0.644 1990 01 1.001 1990 02 3.402 1990 03 2.990 1990 04 1.879 1990 05 0.943 1990 06 0.304 1990 07 -0.296 1990 08 -0.180 1990 09 -0.210 1990 10 0.660 1990 11 0.521 1990 12 1.277 1991 01 0.723 1991 02 -0.876 1991 03 -0.527 1991 04 0.530 1991 05 0.486 1991 06 -0.115 1991 07 -0.188 1991 08 0.797 1991 09 -0.112 1991 10 -0.252 1991 11 0.285 1991 12 1.613 1992 01 0.550 1992 02 1.122 1992 03 0.984 1992 04 -0.521 1992 05 1.341 1992 06 -0.302 1992 07 0.191 1992 08 0.535 1992 09 -0.640 1992 10 -0.366 1992 11 0.717 1992 12 1.627 1993 01 3.495 1993 02 0.184 1993 03 0.764 1993 04 -0.435 1993 05 -1.607 1993 06 -0.520 1993 07 -0.511 1993 08 -0.393 1993 09 -0.361 1993 10 -0.565 1993 11 1.002 1993 12 -0.104 1994 01 -0.288 1994 02 -0.862 1994 03 1.881 1994 04 0.225 1994 05 -0.115 1994 06 1.606 1994 07 0.351 1994 08 0.828 1994 09 -0.084 1994 10 0.174 1994 11 1.779 1994 12 0.894 1995 01 -0.154 1995 02 1.429 1995 03 0.393 1995 04 -0.963 1995 05 -0.891 1995 06 -0.112 1995 07 -0.217 1995 08 0.544 1995 09 -0.549 1995 10 0.075 1995 11 -0.723 1995 12 -2.127 1996 01 -1.200 1996 02 0.163 1996 03 -1.483 1996 04 -1.525 1996 05 -0.226 1996 06 0.497 1996 07 0.715 1996 08 0.125 1996 09 -1.140 1996 10 0.183 1996 11 0.136 1996 12 -1.721 1997 01 -0.457 1997 02 1.889 1997 03 1.091 1997 04 0.324 1997 05 -0.961 1997 06 -0.815 1997 07 -0.431 1997 08 0.121 1997 09 0.195 1997 10 -0.700 1997 11 -0.661 1997 12 -0.071 1998 01 -2.081 1998 02 -0.183 1998 03 -0.254 1998 04 -0.038 1998 05 0.429 1998 06 -0.711 1998 07 -0.212 1998 08 0.650 1998 09 -1.050 1998 10 0.294 1998 11 -1.449 1998 12 1.353 1999 01 0.110 1999 02 0.482 1999 03 -1.492 1999 04 0.284 1999 05 0.226 1999 06 0.707 1999 07 -0.002 1999 08 -0.672 1999 09 0.059 1999 10 -0.006 1999 11 0.611 1999 12 1.043 2000 01 1.270 2000 02 1.076 2000 03 -0.451 2000 04 -0.279 2000 05 0.969 2000 06 0.586 2000 07 -0.649 2000 08 0.144 2000 09 0.395 2000 10 0.317 2000 11 -1.581 2000 12 -2.354 2001 01 -0.959 2001 02 -0.622 2001 03 -1.687 2001 04 0.906 2001 05 0.452 2001 06 -0.015 2001 07 -0.031 2001 08 0.521 2001 09 -0.707 2001 10 0.707 2001 11 0.819 2001 12 -1.322 2002 01 1.381 2002 02 1.304 2002 03 0.902 2002 04 0.748 2002 05 0.401 2002 06 0.573 2002 07 0.328 2002 08 -0.229 2002 09 -0.043 2002 10 -1.489 2002 11 -1.425 2002 12 -1.592 2003 01 -0.472 2003 02 0.128 2003 03 0.933 2003 04 -0.178 2003 05 1.017 2003 06 -0.102 2003 07 0.075 2003 08 -0.280 2003 09 0.467 2003 10 -0.670 2003 11 0.642 2003 12 0.265 2004 01 -1.686 2004 02 -1.528 2004 03 0.318 2004 04 -0.409 2004 05 -0.094 2004 06 -0.236 2004 07 -0.201 2004 08 -0.720 2004 09 0.855 2004 10 -0.515 2004 11 0.678 2004 12 1.230 2005 01 0.356 2005 02 -1.271 2005 03 -1.348 2005 04 -0.046 2005 05 -0.763 2005 06 -0.383 2005 07 -0.030 2005 08 0.026 2005 09 0.802 2005 10 0.030 2005 11 0.228 2005 12 -2.104 2006 01 -0.170 2006 02 -0.156 2006 03 -1.604 2006 04 0.138 2006 05 0.156 2006 06 1.071 2006 07 0.103 2006 08 -0.265 2006 09 0.606 2006 10 -1.029 2006 11 0.521 2006 12 2.282 2007 01 2.034 2007 02 -1.307 2007 03 1.182 2007 04 0.544 2007 05 0.894 2007 06 -0.555 2007 07 -0.397 2007 08 -0.034 2007 09 0.179 2007 10 0.383 2007 11 -0.519 2007 12 0.821 2008 01 0.819 2008 02 0.938 2008 03 0.586 2008 04 -0.455 2008 05 -1.205 2008 06 -0.090 2008 07 -0.480 2008 08 -0.080 2008 09 -0.327 2008 10 1.676 2008 11 0.092 2008 12 0.648 2009 01 0.800 2009 02 -0.672 2009 03 0.121 2009 04 0.973 2009 05 1.194 2009 06 -1.351 2009 07 -1.356 2009 08 -0.054 2009 09 0.875 2009 10 -1.540 2009 11 0.459 2009 12 -3.413 2010 01 -2.587 2010 02 -4.266 2010 03 -0.432 2010 04 -0.275 2010 05 -0.919 2010 06 -0.013 2010 07 0.435 2010 08 -0.117 2010 09 -0.865 2010 10 -0.467 2010 11 -0.376 2010 12 -2.631 2011 01 -1.683 2011 02 1.575 2011 03 1.424 2011 04 2.275 2011 05 -0.035 2011 06 -0.858 2011 07 -0.472 2011 08 -1.063 2011 09 0.665 2011 10 0.800 2011 11 1.459 2011 12 2.221 2012 01 -0.220 2012 02 -0.036 2012 03 1.037 2012 04 -0.035 2012 05 0.168 2012 06 -0.672 2012 07 0.168 2012 08 0.014 2012 09 0.772 2012 10 -1.514 2012 11 -0.111 2012 12 -1.749 2013 01 -0.610 2013 02 -1.007 2013 03 -3.185 2013 04 0.322 2013 05 0.494 2013 06 0.549 2013 07 -0.011 2013 08 0.154 2013 09 -0.461 2013 10 0.263 2013 11 2.029 2013 12 1.475 2014 01 -0.969 2014 02 0.044 2014 03 1.206 2014 04 0.972 2014 05 0.464 2014 06 -0.507 2014 07 -0.489 2014 08 -0.372 2014 09 0.102 2014 10 -1.134 2014 11 -0.530 2014 12 0.413 2015 01 1.092 2015 02 1.043 2015 03 1.837 2015 04 1.216 2015 05 0.763 2015 06 0.427 2015 07 -1.108 2015 08 -0.689 2015 09 -0.165 2015 10 -0.250 2015 11 1.945 2015 12 1.444 2016 01 -1.449 2016 02 -0.024 2016 03 0.280 2016 04 -1.051 2016 05 -0.036 2016 06 0.313 2016 07 0.085 2016 08 0.472 2016 09 0.781 2016 10 -1.917 2016 11 -0.611 2016 12 1.786