Year Month Day AO index 2005 MAY 1 -1.143 2005 MAY 2 -0.648 2005 MAY 3 -0.094 2005 MAY 4 0.364 2005 MAY 5 0.133 2005 MAY 6 -0.281 2005 MAY 7 -0.770 2005 MAY 8 -1.559 2005 MAY 9 -1.935 2005 MAY 10 -1.603 2005 MAY 11 -1.228 2005 MAY 12 -1.049 2005 MAY 13 -1.176 2005 MAY 14 -1.310 2005 MAY 15 -1.025 2005 MAY 16 -0.793 2005 MAY 17 -0.803 2005 MAY 18 -1.037 2005 MAY 19 -1.205 2005 MAY 20 -1.297 2005 MAY 21 -0.810 2005 MAY 22 -0.402 2005 MAY 23 -0.659 2005 MAY 24 -0.871 2005 MAY 25 -0.666 2005 MAY 26 -0.221 2005 MAY 27 0.176 2005 MAY 28 0.062 2005 MAY 29 -0.212 2005 MAY 30 -0.371 2005 MAY 31 -0.393 2005 JUN 1 -0.257 2005 JUN 2 -0.352 2005 JUN 3 -0.489 2005 JUN 4 -0.566 2005 JUN 5 -0.582 2005 JUN 6 -0.589 2005 JUN 7 -0.607 2005 JUN 8 -0.631 2005 JUN 9 -0.449 2005 JUN 10 -0.463 2005 JUN 11 -0.875 2005 JUN 12 -1.407 2005 JUN 13 -2.026 2005 JUN 14 -2.358 2005 JUN 15 -2.076 2005 JUN 16 -1.517 2005 JUN 17 -1.299 2005 JUN 18 -1.009 2005 JUN 19 -0.343 2005 JUN 20 0.160 2005 JUN 21 -0.013 2005 JUN 22 -0.091 2005 JUN 23 0.062 2005 JUN 24 0.391 2005 JUN 25 0.783 2005 JUN 26 1.043 2005 JUN 27 1.406 2005 JUN 28 1.471 2005 JUN 29 1.009 2005 JUN 30 0.582 2005 JUL 1 0.341 2005 JUL 2 0.130 2005 JUL 3 -0.013 2005 JUL 4 0.194 2005 JUL 5 0.335 2005 JUL 6 0.460 2005 JUL 7 0.495 2005 JUL 8 0.389 2005 JUL 9 0.201 2005 JUL 10 -0.030 2005 JUL 11 -0.010 2005 JUL 12 0.718 2005 JUL 13 1.267 2005 JUL 14 1.257 2005 JUL 15 1.133 2005 JUL 16 1.035 2005 JUL 17 0.731 2005 JUL 18 0.481 2005 JUL 19 0.191 2005 JUL 20 -0.105 2005 JUL 21 -0.357 2005 JUL 22 -0.541 2005 JUL 23 -0.787 2005 JUL 24 -1.241 2005 JUL 25 -1.747 2005 JUL 26 -1.845 2005 JUL 27 -1.445 2005 JUL 28 -1.005 2005 JUL 29 -0.478 2005 JUL 30 -0.355 2005 JUL 31 -0.308 2005 AUG 1 -0.031 2005 AUG 2 -0.029 2005 AUG 3 -0.310 2005 AUG 4 -0.639 2005 AUG 5 -0.952 2005 AUG 6 -1.187 2005 AUG 7 -1.443 2005 AUG 8 -1.588 2005 AUG 9 -1.691 2005 AUG 10 -1.433 2005 AUG 11 -1.074 2005 AUG 12 -0.996 2005 AUG 13 -1.262 2005 AUG 14 -1.463 2005 AUG 15 -0.949 2005 AUG 16 -0.218 2005 AUG 17 0.265 2005 AUG 18 0.303 2005 AUG 19 0.669 2005 AUG 20 1.242 2005 AUG 21 1.418 2005 AUG 22 1.450 2005 AUG 23 1.362 2005 AUG 24 1.342 2005 AUG 25 1.465 2005 AUG 26 1.525 2005 AUG 27 1.291 2005 AUG 28 1.096 2005 AUG 29 1.208 2005 AUG 30 0.969 2005 AUG 31 0.439