Year Month Day AAO index 2007 MAY 1 -2.699 2007 MAY 2 -2.086 2007 MAY 3 -2.060 2007 MAY 4 -1.964 2007 MAY 5 -1.748 2007 MAY 6 -1.691 2007 MAY 7 -1.775 2007 MAY 8 -1.358 2007 MAY 9 -0.438 2007 MAY 10 0.104 2007 MAY 11 0.268 2007 MAY 12 0.329 2007 MAY 13 0.148 2007 MAY 14 -0.259 2007 MAY 15 0.194 2007 MAY 16 -0.067 2007 MAY 17 -0.217 2007 MAY 18 -0.052 2007 MAY 19 0.342 2007 MAY 20 0.474 2007 MAY 21 0.469 2007 MAY 22 0.263 2007 MAY 23 0.304 2007 MAY 24 0.150 2007 MAY 25 -0.377 2007 MAY 26 -0.606 2007 MAY 27 -0.912 2007 MAY 28 -0.949 2007 MAY 29 -0.836 2007 MAY 30 -0.766 2007 MAY 31 -0.549 2007 JUN 1 0.311 2007 JUN 2 1.070 2007 JUN 3 1.496 2007 JUN 4 1.495 2007 JUN 5 0.605 2007 JUN 6 -0.960 2007 JUN 7 -1.735 2007 JUN 8 -1.846 2007 JUN 9 -2.214 2007 JUN 10 -2.112 2007 JUN 11 -1.087 2007 JUN 12 -0.351 2007 JUN 13 -0.285 2007 JUN 14 -0.237 2007 JUN 15 -0.122 2007 JUN 16 -0.639 2007 JUN 17 -1.086 2007 JUN 18 -1.329 2007 JUN 19 -1.664 2007 JUN 20 -1.292 2007 JUN 21 -1.324 2007 JUN 22 -2.706 2007 JUN 23 -3.145 2007 JUN 24 -3.291 2007 JUN 25 -2.946 2007 JUN 26 -2.079 2007 JUN 27 -1.392 2007 JUN 28 -1.345 2007 JUN 29 -2.016 2007 JUN 30 -2.501 2007 JUL 1 -1.819 2007 JUL 2 -2.070 2007 JUL 3 -3.039 2007 JUL 4 -3.527 2007 JUL 5 -3.674 2007 JUL 6 -3.171 2007 JUL 7 -2.510 2007 JUL 8 -1.899 2007 JUL 9 -1.539 2007 JUL 10 -1.820 2007 JUL 11 -1.810 2007 JUL 12 -1.460 2007 JUL 13 -0.991 2007 JUL 14 -0.640 2007 JUL 15 -0.878 2007 JUL 16 -1.483 2007 JUL 17 -1.521 2007 JUL 18 -1.593 2007 JUL 19 -1.669 2007 JUL 20 -2.047 2007 JUL 21 -2.666 2007 JUL 22 -3.161 2007 JUL 23 -3.919 2007 JUL 24 -4.385 2007 JUL 25 -3.819 2007 JUL 26 -3.586 2007 JUL 27 -3.949 2007 JUL 28 -4.260 2007 JUL 29 -3.902 2007 JUL 30 -3.147 2007 JUL 31 -2.753 2007 AUG 1 -2.506 2007 AUG 2 -1.927 2007 AUG 3 -1.463 2007 AUG 4 -1.273 2007 AUG 5 -0.953 2007 AUG 6 -1.013 2007 AUG 7 -1.445 2007 AUG 8 -0.767 2007 AUG 9 0.138 2007 AUG 10 0.081 2007 AUG 11 0.084 2007 AUG 12 0.288 2007 AUG 13 0.764 2007 AUG 14 1.317 2007 AUG 15 1.652 2007 AUG 16 1.888 2007 AUG 17 1.789 2007 AUG 18 1.857 2007 AUG 19 1.917 2007 AUG 20 1.217 2007 AUG 21 0.203 2007 AUG 22 -0.476 2007 AUG 23 -0.358 2007 AUG 24 -0.074 2007 AUG 25 -0.343 2007 AUG 26 -0.590 2007 AUG 27 -1.027 2007 AUG 28 -0.908 2007 AUG 29 -0.573 2007 AUG 30 -0.355 2007 AUG 31 -0.447