Statistics of sunspot activity
August, 1984
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 | 19.67 | 19.83 | 36.00 | 34.83 | 18.50 | 28.33 | 36.83 | 49.80 | 45.00 | 58.67 | 37.80 | 42.83 | 39.00 | 37.00 | 28.40 | 22.25 | 20.67 | 13.60 | 20.40 | 22.40 | 18.60 | 14.83 | 22.67 | 37.40 | 61.83 | 69.40 | 56.50 | 45.67 | 49.50 | 29.83 | 49.00 | 35.07 | 100 |
| Wn | 2.17 | 0.00 | 7.33 | 11.50 | 11.50 | 28.33 | 32.83 | 47.40 | 41.75 | 58.67 | 37.80 | 42.83 | 36.50 | 37.00 | 28.40 | 14.00 | 9.50 | 2.60 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 2.00 | 0.00 | 0.00 | 0.00 | 7.80 | 14.84 | 42.31 |
| Ws | 17.50 | 19.83 | 28.67 | 23.33 | 7.00 | 0.00 | 4.00 | 2.40 | 3.25 | 0.00 | 0.00 | 0.00 | 2.50 | 0.00 | 0.00 | 8.25 | 11.17 | 11.00 | 20.40 | 22.40 | 18.60 | 14.83 | 22.67 | 37.40 | 61.83 | 69.40 | 54.50 | 45.67 | 49.50 | 29.83 | 41.20 | 20.23 | 57.69 |
| n | 1.33 | 1.00 | 2.33 | 2.67 | 1.50 | 1.83 | 2.17 | 2.00 | 1.25 | 1.83 | 1.80 | 2.50 | 2.33 | 2.50 | 2.40 | 2.00 | 1.83 | 1.20 | 1.80 | 2.00 | 1.60 | 1.33 | 1.83 | 2.60 | 3.83 | 3.20 | 2.50 | 2.17 | 2.50 | 1.00 | 1.60 | 2.01 | 100 |
| A | 0.33 | 0.00 | 0.67 | 1.00 | 0.17 | 0.67 | 0.67 | 0.80 | 0.25 | 0.50 | 0.60 | 0.17 | 0.17 | 0.50 | 1.00 | 1.25 | 0.50 | 0.00 | 0.40 | 0.80 | 0.40 | 0.33 | 0.00 | 0.00 | 0.67 | 0.60 | 0.50 | 0.00 | 0.25 | 0.00 | 0.00 | 0.43 | 21.11 |
| B | 0.00 | 0.00 | 0.00 | 0.17 | 0.33 | 0.33 | 0.50 | 0.40 | 0.00 | 0.00 | 0.20 | 1.00 | 0.50 | 1.17 | 1.00 | 0.25 | 0.00 | 0.20 | 0.40 | 0.20 | 0.00 | 0.00 | 0.67 | 0.60 | 0.33 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.28 | 13.85 |
| C | 0.83 | 0.33 | 0.33 | 1.33 | 0.50 | 0.17 | 0.33 | 0.20 | 0.00 | 0.17 | 0.00 | 0.50 | 1.33 | 0.67 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.40 | 0.00 | 0.33 | 0.00 | 1.00 | 0.40 | 0.67 | 0.83 | 1.00 | 0.00 | 0.40 | 0.38 | 19.11 |
| D | 0.00 | 0.67 | 0.67 | 0.00 | 0.00 | 0.33 | 0.67 | 0.60 | 1.00 | 0.83 | 0.80 | 0.67 | 0.33 | 0.17 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 1.00 | 1.17 | 1.80 | 1.33 | 1.33 | 1.25 | 1.00 | 1.00 | 0.54 | 26.93 |
| E | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 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 | 0.27 |
| 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 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| G | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.17 | 0.20 | 0.17 | 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 | 0.02 | 1.12 |
| 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 | 0.17 | 0.00 | 0.67 | 0.17 | 0.50 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.50 | 1.33 | 1.00 | 1.00 | 0.80 | 0.80 | 1.00 | 0.83 | 1.00 | 0.67 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.35 | 17.61 |
| x | 0.33 | 0.00 | 0.67 | 1.17 | 0.50 | 1.00 | 1.17 | 1.20 | 0.25 | 0.50 | 0.80 | 1.17 | 0.67 | 1.67 | 2.00 | 1.50 | 0.50 | 0.20 | 0.80 | 1.00 | 0.40 | 0.33 | 0.67 | 0.60 | 1.00 | 1.00 | 0.50 | 0.00 | 0.25 | 0.00 | 0.00 | 0.70 | 34.96 |
| r | 0.17 | 0.00 | 0.33 | 0.00 | 0.17 | 0.17 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 1.00 | 0.17 | 0.00 | 0.00 | 0.17 | 0.20 | 0.00 | 0.00 | 0.00 | 0.17 | 0.33 | 0.60 | 0.83 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.18 | 9.18 |
| s | 0.33 | 0.17 | 0.50 | 0.67 | 0.67 | 0.17 | 0.00 | 0.00 | 0.25 | 0.00 | 0.20 | 0.50 | 0.00 | 0.00 | 0.00 | 0.50 | 0.50 | 0.80 | 0.80 | 0.80 | 1.00 | 0.83 | 0.67 | 0.80 | 0.50 | 1.00 | 1.00 | 1.00 | 0.25 | 0.33 | 0.20 | 0.47 | 23.11 |
| a | 0.50 | 0.83 | 0.83 | 0.83 | 0.17 | 0.50 | 0.67 | 0.80 | 0.50 | 1.17 | 0.80 | 0.33 | 0.67 | 0.67 | 0.40 | 0.00 | 0.67 | 0.00 | 0.20 | 0.20 | 0.00 | 0.00 | 0.17 | 0.60 | 1.50 | 0.80 | 0.50 | 0.67 | 1.75 | 0.50 | 0.80 | 0.58 | 28.85 |
| h | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 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 | 0.50 | 0.17 | 0.25 | 0.17 | 0.00 | 0.05 | 2.32 |
| k | 0.00 | 0.00 | 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 | 0.00 | 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 | 0.40 | 0.03 | 1.57 |
| x | 0.50 | 0.00 | 1.33 | 1.17 | 0.67 | 0.83 | 0.67 | 0.80 | 0.25 | 0.50 | 0.60 | 0.17 | 0.17 | 0.50 | 1.20 | 1.75 | 1.83 | 1.00 | 1.40 | 1.60 | 1.20 | 1.33 | 0.83 | 1.00 | 1.33 | 0.60 | 0.50 | 0.00 | 0.25 | 0.00 | 0.20 | 0.78 | 38.72 |
| o | 0.83 | 1.00 | 1.00 | 1.50 | 0.83 | 1.00 | 1.33 | 1.20 | 0.25 | 0.33 | 1.00 | 2.17 | 2.17 | 2.00 | 1.20 | 0.25 | 0.00 | 0.20 | 0.40 | 0.40 | 0.40 | 0.00 | 1.00 | 1.60 | 2.17 | 2.20 | 1.33 | 1.67 | 1.25 | 0.33 | 0.60 | 1.02 | 50.63 |
| i | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.50 | 0.50 | 0.20 | 0.17 | 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 | 0.40 | 0.67 | 0.50 | 1.00 | 0.67 | 0.60 | 0.18 | 9.13 |
| c | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 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 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.03 | 1.52 |
| CV | 8.67 | 15.83 | 21.17 | 15.17 | 9.83 | 14.00 | 16.50 | 14.60 | 30.50 | 36.83 | 22.00 | 23.17 | 15.17 | 10.83 | 8.20 | 6.75 | 10.83 | 9.20 | 10.60 | 10.80 | 18.80 | 9.33 | 10.83 | 29.00 | 35.67 | 43.00 | 50.83 | 50.50 | 43.25 | 28.00 | 37.40 | 21.52 | 100 |
| CVn | 0.17 | 0.00 | 5.17 | 6.00 | 7.50 | 14.00 | 16.00 | 14.40 | 30.25 | 36.83 | 22.00 | 23.17 | 14.33 | 10.83 | 8.20 | 1.50 | 3.33 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 4.60 | 7.06 | 32.80 |
| CVs | 8.50 | 15.83 | 16.00 | 9.17 | 2.33 | 0.00 | 0.50 | 0.20 | 0.25 | 0.00 | 0.00 | 0.00 | 0.83 | 0.00 | 0.00 | 5.25 | 7.50 | 8.80 | 10.60 | 10.80 | 18.80 | 9.33 | 10.83 | 29.00 | 35.67 | 43.00 | 50.67 | 50.50 | 43.25 | 28.00 | 32.80 | 14.47 | 67.20 |
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