Year Month Day AAO index 2010 MAY 1 -0.256 2010 MAY 2 -0.558 2010 MAY 3 -0.518 2010 MAY 4 -0.569 2010 MAY 5 -0.663 2010 MAY 6 -1.084 2010 MAY 7 -1.469 2010 MAY 8 -1.368 2010 MAY 9 -1.234 2010 MAY 10 -0.816 2010 MAY 11 -0.601 2010 MAY 12 -0.569 2010 MAY 13 -0.148 2010 MAY 14 0.390 2010 MAY 15 1.112 2010 MAY 16 2.472 2010 MAY 17 2.851 2010 MAY 18 2.251 2010 MAY 19 2.429 2010 MAY 20 2.739 2010 MAY 21 2.847 2010 MAY 22 2.809 2010 MAY 23 2.301 2010 MAY 24 1.667 2010 MAY 25 1.495 2010 MAY 26 1.813 2010 MAY 27 2.280 2010 MAY 28 2.274 2010 MAY 29 2.526 2010 MAY 30 2.793 2010 MAY 31 3.245 2010 JUN 1 3.349 2010 JUN 2 3.341 2010 JUN 3 2.997 2010 JUN 4 2.837 2010 JUN 5 2.601 2010 JUN 6 2.284 2010 JUN 7 2.220 2010 JUN 8 2.319 2010 JUN 9 2.308 2010 JUN 10 1.904 2010 JUN 11 1.486 2010 JUN 12 1.319 2010 JUN 13 1.196 2010 JUN 14 1.443 2010 JUN 15 1.328 2010 JUN 16 0.896 2010 JUN 17 0.405 2010 JUN 18 0.425 2010 JUN 19 1.018 2010 JUN 20 1.574 2010 JUN 21 2.123 2010 JUN 22 2.498 2010 JUN 23 2.587 2010 JUN 24 2.661 2010 JUN 25 2.404 2010 JUN 26 1.993 2010 JUN 27 1.985 2010 JUN 28 2.174 2010 JUN 29 2.029 2010 JUN 30 2.114 2010 JUL 1 2.037 2010 JUL 2 2.315 2010 JUL 3 2.879 2010 JUL 4 3.391 2010 JUL 5 3.072 2010 JUL 6 2.373 2010 JUL 7 1.799 2010 JUL 8 1.717 2010 JUL 9 1.370 2010 JUL 10 1.540 2010 JUL 11 1.743 2010 JUL 12 1.607 2010 JUL 13 0.855 2010 JUL 14 1.258 2010 JUL 15 2.345 2010 JUL 16 2.900 2010 JUL 17 3.117 2010 JUL 18 2.905 2010 JUL 19 3.276 2010 JUL 20 3.904 2010 JUL 21 4.037 2010 JUL 22 3.635 2010 JUL 23 3.985 2010 JUL 24 4.159 2010 JUL 25 3.295 2010 JUL 26 2.280 2010 JUL 27 1.640 2010 JUL 28 0.871 2010 JUL 29 0.674 2010 JUL 30 0.774 2010 JUL 31 0.613 2010 AUG 1 1.439 2010 AUG 2 2.518 2010 AUG 3 2.835 2010 AUG 4 2.582 2010 AUG 5 1.958 2010 AUG 6 1.214 2010 AUG 7 1.249 2010 AUG 8 1.878 2010 AUG 9 1.916 2010 AUG 10 2.308 2010 AUG 11 2.631 2010 AUG 12 2.936 2010 AUG 13 2.768 2010 AUG 14 2.239 2010 AUG 15 2.112 2010 AUG 16 1.757 2010 AUG 17 1.767 2010 AUG 18 2.060 2010 AUG 19 2.092 2010 AUG 20 1.713 2010 AUG 21 1.498 2010 AUG 22 0.787 2010 AUG 23 0.354 2010 AUG 24 0.147 2010 AUG 25 -0.603 2010 AUG 26 -1.083 2010 AUG 27 -1.011 2010 AUG 28 -0.347 2010 AUG 29 0.599 2010 AUG 30 1.023 2010 AUG 31 1.722