Year Month Day AO index 2003 MAY 1 0.567 2003 MAY 2 0.054 2003 MAY 3 -0.445 2003 MAY 4 -0.276 2003 MAY 5 0.595 2003 MAY 6 1.409 2003 MAY 7 2.041 2003 MAY 8 1.827 2003 MAY 9 1.488 2003 MAY 10 1.246 2003 MAY 11 1.349 2003 MAY 12 1.378 2003 MAY 13 1.516 2003 MAY 14 1.799 2003 MAY 15 2.177 2003 MAY 16 1.576 2003 MAY 17 0.712 2003 MAY 18 0.374 2003 MAY 19 0.448 2003 MAY 20 0.583 2003 MAY 21 0.787 2003 MAY 22 1.169 2003 MAY 23 1.503 2003 MAY 24 1.233 2003 MAY 25 1.050 2003 MAY 26 0.989 2003 MAY 27 1.037 2003 MAY 28 0.659 2003 MAY 29 0.565 2003 MAY 30 0.570 2003 MAY 31 0.413 2003 JUN 1 -0.071 2003 JUN 2 -0.429 2003 JUN 3 -0.663 2003 JUN 4 -0.698 2003 JUN 5 -0.315 2003 JUN 6 0.139 2003 JUN 7 0.282 2003 JUN 8 -0.095 2003 JUN 9 -0.208 2003 JUN 10 -0.068 2003 JUN 11 0.282 2003 JUN 12 0.194 2003 JUN 13 -0.266 2003 JUN 14 -0.474 2003 JUN 15 -0.491 2003 JUN 16 -0.603 2003 JUN 17 -0.393 2003 JUN 18 0.151 2003 JUN 19 0.753 2003 JUN 20 0.688 2003 JUN 21 0.564 2003 JUN 22 0.359 2003 JUN 23 0.048 2003 JUN 24 0.250 2003 JUN 25 0.390 2003 JUN 26 0.327 2003 JUN 27 -0.031 2003 JUN 28 -0.774 2003 JUN 29 -1.029 2003 JUN 30 -0.778 2003 JUL 1 -0.489 2003 JUL 2 -0.580 2003 JUL 3 -0.718 2003 JUL 4 -0.731 2003 JUL 5 -0.597 2003 JUL 6 -0.462 2003 JUL 7 -0.346 2003 JUL 8 -0.236 2003 JUL 9 -0.028 2003 JUL 10 0.121 2003 JUL 11 0.300 2003 JUL 12 0.198 2003 JUL 13 -0.082 2003 JUL 14 -0.049 2003 JUL 15 -0.283 2003 JUL 16 -0.591 2003 JUL 17 -0.822 2003 JUL 18 -0.954 2003 JUL 19 -0.657 2003 JUL 20 0.055 2003 JUL 21 0.562 2003 JUL 22 1.212 2003 JUL 23 1.534 2003 JUL 24 1.548 2003 JUL 25 1.128 2003 JUL 26 0.654 2003 JUL 27 0.466 2003 JUL 28 0.269 2003 JUL 29 0.204 2003 JUL 30 0.820 2003 JUL 31 0.802 2003 AUG 1 0.547 2003 AUG 2 0.448 2003 AUG 3 0.045 2003 AUG 4 -0.436 2003 AUG 5 -0.799 2003 AUG 6 -1.035 2003 AUG 7 -1.156 2003 AUG 8 -1.196 2003 AUG 9 -1.052 2003 AUG 10 -1.148 2003 AUG 11 -1.418 2003 AUG 12 -0.966 2003 AUG 13 -0.213 2003 AUG 14 0.327 2003 AUG 15 0.589 2003 AUG 16 0.675 2003 AUG 17 0.919 2003 AUG 18 0.886 2003 AUG 19 1.059 2003 AUG 20 1.162 2003 AUG 21 1.143 2003 AUG 22 0.401 2003 AUG 23 -0.587 2003 AUG 24 -1.160 2003 AUG 25 -1.221 2003 AUG 26 -0.999 2003 AUG 27 -0.951 2003 AUG 28 -1.198 2003 AUG 29 -1.097 2003 AUG 30 -0.438 2003 AUG 31 0.482