Statistics of sunspot activity
August, 1993
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 | 46.33 | 52.25 | 44.00 | 34.75 | 35.50 | 56.00 | 53.80 | 45.60 | 77.40 | 82.40 | 86.00 | 82.20 | 81.00 | 61.20 | 42.40 | 27.33 | 36.00 | 40.50 | 38.25 | 27.00 | 42.00 | 56.80 | 64.25 | 57.00 | 74.00 | 55.25 | 57.80 | 70.00 | 63.60 | 57.75 | 48.00 | 54.72 | 100 |
| Wn | 32.67 | 38.25 | 33.00 | 23.50 | 24.25 | 33.80 | 38.20 | 45.60 | 74.80 | 75.00 | 71.25 | 68.00 | 60.00 | 28.60 | 6.60 | 0.00 | 3.00 | 5.75 | 0.00 | 0.00 | 13.40 | 13.00 | 16.25 | 20.20 | 43.00 | 42.00 | 45.40 | 57.50 | 51.60 | 44.50 | 45.25 | 34.01 | 62.15 |
| Ws | 13.67 | 14.00 | 11.00 | 11.25 | 11.25 | 22.20 | 15.60 | 0.00 | 2.60 | 7.40 | 14.75 | 14.20 | 21.00 | 32.60 | 35.80 | 27.33 | 33.00 | 34.75 | 38.25 | 27.00 | 28.60 | 43.80 | 48.00 | 36.80 | 31.00 | 13.25 | 12.40 | 12.50 | 12.00 | 13.25 | 2.75 | 20.71 | 37.85 |
| n | 3.83 | 4.50 | 3.25 | 2.50 | 2.50 | 3.60 | 3.40 | 2.80 | 4.20 | 5.00 | 5.75 | 4.40 | 5.40 | 4.20 | 2.60 | 2.00 | 3.00 | 3.25 | 2.75 | 2.00 | 3.00 | 4.20 | 5.00 | 4.40 | 5.20 | 4.00 | 4.00 | 4.00 | 4.00 | 4.00 | 3.75 | 3.76 | 100 |
| A | 0.17 | 0.75 | 0.00 | 0.00 | 0.25 | 0.60 | 2.00 | 0.80 | 0.00 | 0.20 | 0.75 | 0.20 | 0.80 | 1.00 | 0.60 | 0.00 | 0.50 | 0.75 | 0.25 | 0.00 | 0.00 | 0.80 | 1.25 | 0.60 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.25 | 0.42 | 11.30 |
| B | 1.17 | 0.25 | 0.25 | 0.00 | 0.25 | 1.20 | 0.40 | 0.60 | 1.40 | 0.40 | 1.00 | 1.00 | 0.80 | 0.00 | 0.00 | 0.00 | 0.25 | 0.50 | 0.50 | 0.00 | 0.40 | 0.20 | 0.25 | 0.20 | 0.20 | 0.25 | 0.40 | 0.00 | 0.20 | 0.50 | 0.25 | 0.41 | 11.00 |
| C | 0.67 | 0.75 | 0.00 | 0.00 | 0.00 | 0.20 | 0.00 | 0.40 | 1.20 | 1.60 | 0.75 | 0.40 | 0.00 | 0.40 | 0.20 | 1.00 | 0.25 | 0.50 | 0.25 | 0.80 | 1.80 | 2.00 | 0.75 | 1.40 | 1.80 | 2.25 | 1.60 | 0.50 | 1.20 | 1.75 | 0.75 | 0.81 | 21.61 |
| D | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.40 | 0.00 | 0.00 | 0.80 | 1.20 | 2.00 | 2.20 | 2.00 | 0.80 | 0.80 | 0.00 | 0.00 | 0.25 | 0.75 | 0.20 | 0.00 | 0.20 | 1.25 | 0.00 | 0.00 | 0.75 | 1.00 | 2.00 | 1.20 | 0.75 | 0.75 | 0.63 | 16.78 |
| 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 | 0.00 | 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 |
| F | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 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 | 0.00 | 0.00 | 0.00 | 0.01 | 0.17 |
| G | 0.00 | 0.00 | 0.75 | 1.00 | 1.00 | 1.00 | 0.80 | 1.00 | 0.80 | 0.80 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.60 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.27 | 7.21 |
| 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 | 0.00 | 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 |
| I | 1.83 | 2.75 | 2.00 | 1.50 | 1.00 | 0.20 | 0.00 | 0.00 | 0.00 | 0.80 | 1.00 | 0.60 | 1.80 | 2.00 | 1.00 | 1.00 | 2.00 | 1.25 | 1.00 | 1.00 | 0.80 | 1.00 | 1.50 | 1.60 | 2.40 | 0.75 | 1.00 | 1.50 | 1.40 | 0.75 | 1.75 | 1.20 | 31.92 |
| x | 1.33 | 1.00 | 0.25 | 0.00 | 0.50 | 1.80 | 2.40 | 1.40 | 1.40 | 0.60 | 1.75 | 1.20 | 1.60 | 1.00 | 0.60 | 0.00 | 0.75 | 1.25 | 0.75 | 0.00 | 0.40 | 1.00 | 1.50 | 0.80 | 0.60 | 0.25 | 0.40 | 0.00 | 0.20 | 0.75 | 0.50 | 0.84 | 22.31 |
| r | 0.67 | 0.50 | 0.00 | 0.25 | 0.25 | 0.60 | 0.00 | 0.20 | 0.20 | 0.40 | 0.25 | 0.20 | 0.00 | 0.00 | 0.00 | 0.33 | 0.50 | 0.00 | 0.00 | 0.00 | 0.20 | 0.20 | 0.25 | 0.20 | 0.20 | 0.25 | 0.20 | 0.00 | 0.60 | 1.00 | 0.25 | 0.25 | 6.61 |
| s | 1.50 | 2.50 | 2.00 | 1.00 | 0.75 | 0.80 | 0.60 | 1.00 | 1.60 | 2.00 | 1.00 | 1.00 | 1.80 | 2.20 | 1.20 | 1.33 | 1.50 | 2.00 | 1.50 | 1.40 | 1.60 | 2.40 | 2.00 | 2.60 | 3.40 | 2.75 | 2.20 | 1.50 | 1.40 | 2.25 | 2.75 | 1.73 | 45.96 |
| a | 0.33 | 0.50 | 1.00 | 1.25 | 1.00 | 0.40 | 0.40 | 0.20 | 1.00 | 2.00 | 2.75 | 1.80 | 2.00 | 1.00 | 0.80 | 0.33 | 0.25 | 0.00 | 0.50 | 0.60 | 0.80 | 0.60 | 1.25 | 0.80 | 1.00 | 0.75 | 1.20 | 2.50 | 1.80 | 0.00 | 0.25 | 0.94 | 24.95 |
| 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 | 0.00 | 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 |
| k | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 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 | 0.01 | 0.17 |
| x | 2.00 | 3.50 | 2.00 | 1.50 | 1.25 | 0.80 | 2.00 | 0.80 | 0.00 | 1.00 | 1.75 | 0.80 | 2.60 | 3.00 | 1.60 | 1.00 | 2.50 | 2.00 | 1.25 | 1.00 | 0.80 | 1.80 | 2.75 | 2.20 | 2.80 | 0.75 | 1.00 | 1.50 | 1.40 | 1.00 | 2.00 | 1.62 | 43.23 |
| o | 1.83 | 1.00 | 1.25 | 1.00 | 1.25 | 2.80 | 1.20 | 2.00 | 3.80 | 3.60 | 3.50 | 2.60 | 2.20 | 0.60 | 0.80 | 1.00 | 0.50 | 1.25 | 1.50 | 1.00 | 2.20 | 2.40 | 2.25 | 2.20 | 2.20 | 3.25 | 2.80 | 2.00 | 2.00 | 2.75 | 1.75 | 1.95 | 51.92 |
| i | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.00 | 0.40 | 0.40 | 0.25 | 0.80 | 0.60 | 0.60 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.00 | 0.20 | 0.50 | 0.60 | 0.25 | 0.00 | 0.17 | 4.46 |
| c | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.20 | 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 | 0.01 | 0.39 |
| CV | 23.17 | 32.50 | 41.75 | 34.50 | 31.00 | 35.00 | 27.20 | 30.20 | 52.00 | 67.40 | 64.75 | 63.40 | 61.40 | 41.80 | 29.20 | 18.00 | 20.00 | 26.00 | 29.75 | 21.40 | 25.00 | 34.60 | 48.75 | 43.20 | 51.00 | 46.25 | 47.60 | 60.00 | 45.60 | 40.00 | 42.25 | 39.83 | 100 |
| CVn | 17.50 | 23.00 | 33.25 | 27.50 | 24.00 | 25.20 | 25.60 | 30.20 | 51.60 | 59.80 | 42.75 | 43.60 | 43.20 | 14.80 | 0.60 | 0.00 | 0.50 | 0.50 | 0.00 | 0.00 | 5.00 | 11.40 | 22.50 | 23.60 | 34.00 | 36.00 | 38.00 | 51.00 | 39.00 | 35.25 | 42.00 | 25.85 | 64.90 |
| CVs | 5.67 | 9.50 | 8.50 | 7.00 | 7.00 | 9.80 | 1.60 | 0.00 | 0.40 | 7.60 | 22.00 | 19.80 | 18.20 | 27.00 | 28.60 | 18.00 | 19.50 | 25.50 | 29.75 | 21.40 | 20.00 | 23.20 | 26.25 | 19.60 | 17.00 | 10.25 | 9.60 | 9.00 | 6.60 | 4.75 | 0.25 | 13.98 | 35.10 |
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