Statistics of sunspot activity
May, 2012
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 | 86.33 | 78.67 | 85.67 | 80.00 | 80.67 | 76.50 | 68.50 | 83.00 | 83.00 | 94.50 | 104.33 | 86.00 | 113.33 | 132.00 | 109.50 | 124.50 | 117.00 | 114.67 | 102.67 | 106.33 | 103.67 | 81.00 | 78.67 | 62.67 | 77.67 | 73.33 | 80.00 | 94.33 | 71.00 | 69.33 | 73.67 | 90.08 | 100.00 |
| Wn | 18.00 | 11.67 | 22.00 | 22.33 | 34.00 | 45.00 | 39.50 | 54.33 | 48.67 | 66.00 | 69.00 | 63.67 | 76.67 | 82.50 | 64.00 | 65.50 | 82.00 | 80.00 | 76.67 | 79.33 | 76.33 | 68.67 | 63.00 | 45.33 | 55.67 | 41.33 | 39.00 | 41.67 | 26.00 | 15.67 | 13.00 | 51.18 | 56.81 |
| Ws | 68.33 | 67.00 | 63.67 | 57.67 | 46.67 | 31.50 | 29.00 | 28.67 | 34.33 | 28.50 | 35.33 | 22.33 | 36.67 | 49.50 | 45.50 | 59.00 | 35.00 | 34.67 | 26.00 | 27.00 | 27.33 | 12.33 | 15.67 | 17.33 | 22.00 | 32.00 | 41.00 | 52.67 | 45.00 | 53.67 | 60.67 | 38.90 | 43.19 |
| n | 5.00 | 4.67 | 6.00 | 5.33 | 6.33 | 5.00 | 4.00 | 4.33 | 4.33 | 3.50 | 5.00 | 4.00 | 6.00 | 8.00 | 8.00 | 9.00 | 7.67 | 7.00 | 6.00 | 6.33 | 6.67 | 5.00 | 5.67 | 4.33 | 5.33 | 5.00 | 5.67 | 5.67 | 4.00 | 3.33 | 5.00 | 5.52 | 100.00 |
| A | 0.00 | 0.33 | 1.00 | 1.00 | 2.33 | 1.00 | 1.00 | 0.67 | 1.00 | 0.00 | 0.33 | 0.00 | 0.67 | 1.50 | 3.00 | 1.50 | 1.00 | 1.00 | 0.00 | 0.00 | 1.00 | 0.67 | 0.33 | 0.33 | 0.00 | 0.00 | 0.67 | 0.67 | 0.33 | 0.00 | 1.67 | 0.74 | 13.44 |
| B | 0.67 | 0.00 | 0.33 | 0.33 | 0.33 | 0.00 | 0.00 | 0.33 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 1.50 | 0.50 | 1.00 | 0.67 | 0.33 | 0.33 | 0.67 | 0.67 | 1.00 | 1.00 | 1.33 | 0.33 | 0.33 | 0.67 | 1.33 | 0.00 | 0.67 | 0.00 | 0.47 | 8.57 |
| C | 1.33 | 1.33 | 3.00 | 1.33 | 1.33 | 1.00 | 0.50 | 0.33 | 0.33 | 0.00 | 0.33 | 0.00 | 0.33 | 1.50 | 0.50 | 2.00 | 2.33 | 1.00 | 1.67 | 0.67 | 1.00 | 1.00 | 2.33 | 0.67 | 2.00 | 0.67 | 1.33 | 0.33 | 0.67 | 0.00 | 0.67 | 1.02 | 18.40 |
| D | 1.33 | 1.00 | 0.33 | 1.00 | 1.00 | 0.50 | 0.50 | 0.67 | 0.67 | 0.50 | 1.00 | 1.00 | 0.00 | 0.00 | 1.50 | 1.50 | 2.00 | 2.00 | 2.33 | 2.67 | 2.00 | 1.00 | 0.33 | 1.33 | 2.67 | 3.33 | 2.00 | 1.67 | 1.33 | 0.33 | 1.67 | 1.26 | 22.88 |
| E | 0.00 | 0.33 | 0.00 | 0.33 | 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 | 0.33 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.05 | 0.97 |
| F | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.50 | 0.50 | 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 | 0.27 | 4.97 |
| G | 1.33 | 1.00 | 0.33 | 0.33 | 0.00 | 0.50 | 0.00 | 0.00 | 0.00 | 0.50 | 0.00 | 0.00 | 0.67 | 0.50 | 0.00 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.67 | 1.00 | 1.33 | 0.67 | 0.31 | 5.65 |
| H | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.33 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.67 | 0.00 | 0.00 | 0.00 | 0.33 | 0.33 | 0.33 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.11 | 1.95 |
| I | 0.33 | 0.67 | 1.00 | 1.00 | 1.00 | 1.50 | 1.00 | 1.00 | 0.67 | 1.50 | 2.33 | 2.00 | 3.33 | 2.50 | 2.00 | 2.50 | 1.33 | 2.00 | 1.67 | 2.33 | 2.00 | 0.67 | 1.00 | 0.33 | 0.33 | 0.33 | 0.67 | 1.00 | 0.67 | 0.67 | 0.33 | 1.28 | 23.17 |
| x | 0.67 | 0.33 | 1.33 | 1.33 | 2.67 | 1.00 | 1.00 | 1.00 | 1.33 | 0.00 | 0.33 | 0.00 | 0.67 | 3.00 | 3.50 | 2.50 | 1.67 | 1.33 | 0.33 | 0.67 | 1.67 | 1.67 | 1.33 | 1.67 | 0.33 | 0.33 | 1.33 | 2.00 | 0.33 | 0.67 | 1.67 | 1.22 | 22.01 |
| r | 0.33 | 1.33 | 1.00 | 0.67 | 0.00 | 0.00 | 1.00 | 0.33 | 0.00 | 0.50 | 0.33 | 0.00 | 0.33 | 0.00 | 0.00 | 0.50 | 0.33 | 0.33 | 0.00 | 0.33 | 0.67 | 0.00 | 1.00 | 0.67 | 1.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 0.37 | 6.62 |
| s | 1.00 | 1.33 | 2.00 | 1.67 | 2.00 | 2.00 | 0.50 | 1.67 | 1.33 | 2.00 | 2.33 | 3.00 | 4.00 | 4.00 | 2.50 | 3.50 | 2.67 | 2.33 | 3.33 | 3.00 | 3.00 | 1.33 | 1.00 | 1.00 | 3.67 | 3.33 | 2.67 | 1.67 | 2.00 | 1.67 | 2.00 | 2.24 | 40.60 |
| a | 2.00 | 0.67 | 0.67 | 0.67 | 0.33 | 0.50 | 0.00 | 0.00 | 0.33 | 0.00 | 1.00 | 0.00 | 0.00 | 0.00 | 0.50 | 2.50 | 0.67 | 0.67 | 0.33 | 0.00 | 0.67 | 1.00 | 0.33 | 0.00 | 0.00 | 0.33 | 1.00 | 1.33 | 1.00 | 1.00 | 0.67 | 0.59 | 10.61 |
| h | 0.67 | 0.67 | 0.33 | 0.33 | 0.33 | 1.50 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 0.00 | 0.67 | 1.33 | 0.67 | 1.33 | 0.67 | 0.67 | 1.33 | 0.67 | 0.33 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.43 | 7.79 |
| k | 0.33 | 0.33 | 0.67 | 0.67 | 1.00 | 0.00 | 1.00 | 1.33 | 1.33 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.50 | 0.00 | 1.67 | 1.00 | 1.33 | 1.00 | 0.00 | 0.33 | 0.67 | 0.33 | 0.00 | 0.67 | 0.67 | 0.67 | 0.67 | 0.00 | 0.00 | 0.68 | 12.37 |
| x | 0.33 | 1.00 | 2.00 | 2.00 | 3.67 | 2.50 | 2.00 | 2.00 | 2.00 | 1.50 | 2.67 | 2.00 | 4.00 | 4.00 | 5.00 | 4.00 | 2.67 | 3.67 | 1.67 | 2.33 | 3.00 | 1.67 | 1.67 | 1.00 | 0.33 | 0.67 | 1.33 | 1.67 | 1.00 | 0.67 | 2.00 | 2.13 | 38.56 |
| o | 4.67 | 3.33 | 4.00 | 3.00 | 2.67 | 2.00 | 0.50 | 1.33 | 1.33 | 1.00 | 1.33 | 1.00 | 1.00 | 3.00 | 2.50 | 4.50 | 4.67 | 1.67 | 2.67 | 2.67 | 3.00 | 2.67 | 3.67 | 2.67 | 4.33 | 4.00 | 4.33 | 3.67 | 2.33 | 2.00 | 2.33 | 2.70 | 48.98 |
| i | 0.00 | 0.33 | 0.00 | 0.33 | 0.00 | 0.00 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 1.00 | 0.50 | 0.50 | 0.33 | 1.00 | 1.00 | 0.33 | 0.67 | 0.67 | 0.33 | 0.33 | 0.67 | 0.33 | 0.00 | 0.33 | 0.67 | 0.67 | 0.67 | 0.37 | 6.72 |
| c | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.67 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 0.67 | 1.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.32 | 5.74 |
| CV | 99.33 | 95.33 | 78.67 | 82.67 | 85.00 | 107.00 | 96.50 | 99.00 | 97.00 | 94.50 | 102.33 | 102.00 | 107.00 | 93.00 | 115.00 | 88.00 | 145.67 | 152.33 | 147.00 | 161.67 | 93.33 | 82.33 | 108.33 | 77.33 | 98.00 | 122.00 | 89.00 | 82.00 | 82.67 | 55.67 | 65.33 | 100.16 | 100.00 |
| CVn | 15.00 | 3.00 | 7.00 | 7.00 | 48.33 | 66.50 | 59.50 | 59.00 | 57.33 | 57.00 | 66.33 | 82.00 | 78.67 | 65.00 | 97.50 | 62.50 | 119.67 | 136.00 | 124.33 | 136.33 | 77.00 | 80.67 | 102.33 | 73.00 | 77.33 | 67.00 | 30.00 | 21.33 | 21.67 | 8.00 | 10.33 | 61.83 | 61.73 |
| CVs | 84.33 | 92.33 | 71.67 | 75.67 | 36.67 | 40.50 | 37.00 | 40.00 | 39.67 | 37.50 | 36.00 | 20.00 | 28.33 | 28.00 | 17.50 | 25.50 | 26.00 | 16.33 | 22.67 | 25.33 | 16.33 | 1.67 | 6.00 | 4.33 | 20.67 | 55.00 | 59.00 | 60.67 | 61.00 | 47.67 | 55.00 | 38.33 | 38.27 |
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