Statistics of sunspot activity
May, 2004
Visual indices of solar activity by National Geophysical Data Center
| Date | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | Average | % |
| W | 60.33 | 40.33 | 49.33 | 59.33 | 41.67 | 31.00 | 30.75 | 31.00 | 40.00 | 59.00 | 46.50 | 78.00 | 70.00 | 89.67 | 112.67 | 110.33 | 110.00 | 99.50 | 83.00 | 100.00 | 79.75 | 76.50 | 97.50 | 104.00 | 57.50 | 68.00 | 53.00 | 45.75 | 63.50 | 63.00 | 54.33 | 67.91 | 100 |
| Wn | 12.33 | 0.00 | 0.00 | 3.67 | 0.00 | 0.00 | 2.75 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 5.00 | 20.00 | 28.33 | 37.67 | 40.33 | 26.50 | 21.75 | 26.50 | 11.75 | 16.25 | 15.25 | 12.25 | 8.25 | 11.33 | 11.33 | 2.75 | 0.00 | 0.00 | 0.00 | 10.13 | 14.92 |
| Ws | 48.00 | 40.33 | 49.33 | 55.67 | 41.67 | 31.00 | 28.00 | 31.00 | 40.00 | 59.00 | 46.50 | 78.00 | 65.00 | 69.67 | 84.33 | 72.67 | 69.67 | 73.00 | 61.25 | 73.50 | 68.00 | 60.25 | 82.25 | 91.75 | 49.25 | 56.67 | 41.67 | 43.00 | 63.50 | 63.00 | 54.33 | 57.78 | 85.08 |
| n | 3.67 | 2.00 | 3.00 | 3.67 | 2.67 | 2.00 | 2.50 | 2.50 | 3.00 | 4.50 | 3.00 | 5.00 | 4.33 | 5.00 | 5.00 | 6.33 | 6.00 | 6.50 | 5.75 | 6.50 | 5.00 | 4.25 | 4.75 | 5.25 | 3.50 | 3.67 | 2.00 | 1.50 | 2.50 | 3.00 | 3.00 | 3.91 | 100 |
| A | 0.33 | 0.00 | 0.33 | 0.33 | 0.33 | 0.00 | 1.00 | 0.25 | 0.25 | 2.00 | 0.00 | 0.67 | 0.67 | 0.33 | 0.67 | 0.67 | 0.33 | 0.00 | 0.00 | 0.50 | 0.00 | 0.25 | 0.50 | 0.25 | 0.25 | 0.33 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.34 | 8.65 |
| B | 1.00 | 0.67 | 1.00 | 0.67 | 0.00 | 0.00 | 0.00 | 0.25 | 0.25 | 0.00 | 1.00 | 1.67 | 0.67 | 1.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.75 | 0.25 | 0.50 | 0.75 | 1.00 | 0.50 | 0.67 | 0.00 | 0.00 | 0.50 | 0.33 | 0.00 | 0.43 | 11.06 |
| C | 1.33 | 0.00 | 0.33 | 1.00 | 0.67 | 1.33 | 0.50 | 0.50 | 1.00 | 1.00 | 0.50 | 1.00 | 1.00 | 0.67 | 0.67 | 0.67 | 1.33 | 1.50 | 1.00 | 1.50 | 3.25 | 0.75 | 1.00 | 1.00 | 0.50 | 0.33 | 0.00 | 0.00 | 0.50 | 0.00 | 0.67 | 0.82 | 21.02 |
| D | 1.00 | 1.33 | 0.67 | 0.67 | 1.33 | 0.67 | 0.00 | 0.00 | 0.50 | 0.50 | 0.50 | 0.33 | 1.00 | 1.67 | 2.33 | 2.33 | 2.00 | 2.00 | 2.00 | 1.75 | 0.25 | 0.25 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 1.00 | 1.00 | 0.83 | 21.29 |
| E | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.25 | 0.25 | 0.25 | 0.25 | 0.25 | 0.33 | 0.33 | 0.50 | 0.50 | 0.00 | 0.00 | 0.10 | 2.68 |
| F | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.50 | 0.75 | 0.00 | 0.67 | 0.67 | 0.50 | 0.50 | 0.67 | 0.00 | 0.15 | 3.71 |
| G | 0.00 | 0.00 | 0.33 | 1.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.25 | 0.25 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.67 | 0.11 | 2.75 |
| H | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.50 | 0.50 | 0.33 | 0.67 | 0.33 | 0.00 | 0.00 | 0.00 | 1.00 | 0.25 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.13 | 3.37 |
| I | 0.00 | 0.00 | 0.33 | 0.00 | 0.33 | 0.00 | 1.00 | 1.25 | 1.00 | 0.50 | 0.50 | 1.00 | 0.33 | 1.00 | 1.33 | 2.67 | 2.00 | 2.00 | 2.50 | 1.75 | 0.75 | 1.75 | 1.25 | 2.00 | 1.75 | 1.33 | 1.00 | 0.25 | 0.00 | 0.67 | 0.67 | 1.00 | 25.48 |
| x | 1.33 | 0.67 | 1.33 | 1.00 | 0.33 | 0.00 | 1.00 | 0.50 | 0.50 | 2.00 | 1.00 | 2.33 | 1.33 | 1.33 | 0.67 | 0.67 | 0.33 | 0.00 | 0.00 | 1.25 | 0.25 | 0.75 | 1.25 | 1.25 | 0.75 | 1.00 | 0.00 | 0.25 | 0.50 | 0.33 | 0.00 | 0.77 | 19.71 |
| r | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.33 | 0.25 | 0.00 | 0.25 | 0.00 | 0.50 | 0.33 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 2.54 |
| s | 1.67 | 0.33 | 1.33 | 1.33 | 1.33 | 1.00 | 1.25 | 1.25 | 1.75 | 1.00 | 0.00 | 0.67 | 0.67 | 1.00 | 1.00 | 1.33 | 2.00 | 0.50 | 1.00 | 1.75 | 3.00 | 2.00 | 1.75 | 2.00 | 1.25 | 2.00 | 1.00 | 0.00 | 0.00 | 0.67 | 1.00 | 1.19 | 30.36 |
| a | 0.67 | 0.67 | 0.00 | 1.33 | 1.00 | 0.67 | 0.00 | 0.50 | 0.50 | 1.00 | 1.00 | 1.33 | 1.00 | 1.67 | 2.33 | 3.67 | 3.00 | 5.00 | 4.00 | 3.00 | 1.75 | 0.75 | 1.25 | 1.25 | 0.75 | 0.67 | 1.00 | 1.25 | 1.50 | 2.00 | 2.00 | 1.50 | 38.32 |
| h | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.33 | 0.00 | 0.00 | 0.00 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.05 | 1.17 |
| k | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.50 | 0.50 | 0.33 | 0.67 | 0.67 | 1.00 | 0.67 | 0.67 | 0.50 | 0.75 | 0.50 | 0.00 | 0.50 | 0.50 | 0.75 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.00 | 0.00 | 0.31 | 7.90 |
| x | 0.33 | 0.00 | 0.67 | 0.33 | 0.67 | 0.00 | 2.00 | 1.75 | 1.25 | 3.00 | 1.00 | 2.00 | 1.67 | 1.67 | 2.00 | 3.33 | 2.33 | 3.00 | 2.75 | 2.50 | 0.75 | 2.00 | 1.75 | 2.25 | 2.00 | 1.67 | 1.00 | 0.50 | 0.00 | 0.67 | 0.67 | 1.47 | 37.50 |
| o | 3.00 | 1.67 | 2.33 | 3.33 | 2.00 | 2.00 | 0.50 | 0.75 | 1.50 | 1.50 | 2.00 | 3.00 | 2.33 | 2.67 | 2.33 | 2.33 | 2.67 | 2.50 | 2.25 | 3.75 | 3.50 | 1.75 | 2.25 | 2.00 | 1.25 | 1.00 | 0.00 | 0.00 | 1.00 | 1.00 | 1.67 | 1.93 | 49.31 |
| i | 0.33 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.33 | 0.33 | 1.00 | 1.00 | 0.75 | 0.25 | 0.75 | 0.25 | 0.50 | 0.75 | 0.25 | 0.67 | 0.67 | 0.50 | 0.50 | 0.33 | 0.33 | 0.34 | 8.59 |
| c | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.33 | 0.33 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.25 | 0.25 | 0.00 | 0.33 | 0.33 | 0.50 | 1.00 | 1.00 | 0.33 | 0.18 | 4.60 |
| CV | 41.00 | 37.67 | 32.67 | 48.33 | 39.33 | 27.33 | 15.00 | 26.50 | 30.75 | 46.00 | 36.00 | 38.67 | 73.00 | 88.67 | 92.67 | 94.00 | 95.67 | 108.50 | 93.00 | 83.00 | 58.25 | 61.25 | 67.50 | 74.25 | 39.00 | 47.33 | 36.67 | 30.00 | 60.50 | 61.33 | 53.00 | 56.03 | 100 |
| CVn | 6.67 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 13.67 | 24.33 | 28.33 | 25.67 | 31.00 | 23.75 | 18.50 | 9.50 | 9.75 | 9.25 | 9.50 | 6.75 | 10.33 | 9.00 | 1.75 | 0.00 | 0.00 | 0.00 | 7.71 | 13.76 |
| CVs | 34.33 | 37.67 | 32.67 | 48.00 | 39.33 | 27.33 | 14.75 | 26.50 | 30.75 | 46.00 | 36.00 | 38.67 | 72.33 | 75.00 | 68.33 | 65.67 | 70.00 | 77.50 | 69.25 | 64.50 | 48.75 | 51.50 | 58.25 | 64.75 | 32.25 | 37.00 | 27.67 | 28.25 | 60.50 | 61.33 | 53.00 | 48.32 | 86.24 |
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