Statistics of sunspot activity
August, 1983
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 | 155.50 | 129.00 | 135.60 | 134.67 | 96.40 | 82.33 | 86.00 | 77.00 | 89.67 | 110.17 | 127.67 | 155.00 | 142.67 | 118.00 | 132.33 | 106.20 | 68.86 | 97.80 | 60.83 | 48.83 | 66.50 | 58.50 | 63.00 | 69.00 | 62.29 | 63.50 | 66.67 | 65.83 | 72.40 | 70.67 | 49.20 | 92.33 | 100 |
| Wn | 22.50 | 20.00 | 16.20 | 20.17 | 9.60 | 12.83 | 15.00 | 3.00 | 1.83 | 3.67 | 12.83 | 17.60 | 22.00 | 28.20 | 35.00 | 29.80 | 31.43 | 50.20 | 47.00 | 43.33 | 38.50 | 29.67 | 29.40 | 24.40 | 15.71 | 2.00 | 4.67 | 0.00 | 0.00 | 15.17 | 10.20 | 19.74 | 21.38 |
| Ws | 133.00 | 109.00 | 119.40 | 114.50 | 86.80 | 69.50 | 71.00 | 74.00 | 87.83 | 106.50 | 114.83 | 137.40 | 120.67 | 89.80 | 97.33 | 76.40 | 37.43 | 47.60 | 13.83 | 5.50 | 28.00 | 28.83 | 33.60 | 44.60 | 46.57 | 61.50 | 62.00 | 65.83 | 72.40 | 55.50 | 39.00 | 72.59 | 78.62 |
| n | 7.50 | 7.00 | 5.60 | 6.33 | 5.00 | 4.50 | 5.50 | 4.25 | 3.67 | 4.50 | 6.00 | 6.40 | 7.00 | 7.20 | 7.33 | 7.00 | 4.86 | 7.20 | 4.33 | 3.50 | 5.25 | 4.17 | 4.80 | 5.20 | 4.43 | 4.67 | 4.67 | 4.83 | 5.60 | 6.00 | 4.20 | 5.44 | 100 |
| A | 2.00 | 1.00 | 1.20 | 1.67 | 0.80 | 0.33 | 1.50 | 0.00 | 0.17 | 0.83 | 1.17 | 0.60 | 1.00 | 1.40 | 1.67 | 1.40 | 0.57 | 0.80 | 0.33 | 1.00 | 2.25 | 0.83 | 1.80 | 1.40 | 0.71 | 1.83 | 1.67 | 1.33 | 2.00 | 2.33 | 2.20 | 1.22 | 22.44 |
| B | 0.50 | 3.00 | 1.00 | 1.17 | 1.60 | 1.67 | 1.00 | 1.00 | 0.33 | 0.00 | 0.33 | 0.60 | 1.00 | 0.80 | 0.50 | 1.20 | 0.43 | 2.20 | 1.00 | 0.50 | 1.50 | 2.17 | 1.80 | 1.60 | 1.57 | 0.67 | 1.00 | 1.50 | 1.60 | 1.50 | 0.00 | 1.12 | 20.62 |
| C | 2.25 | 1.00 | 1.00 | 1.50 | 1.00 | 0.50 | 0.83 | 0.25 | 0.33 | 1.00 | 0.33 | 0.40 | 0.00 | 1.20 | 2.50 | 0.80 | 0.86 | 1.40 | 1.67 | 0.83 | 0.25 | 0.50 | 0.60 | 0.80 | 0.57 | 1.00 | 0.33 | 0.50 | 0.60 | 0.67 | 0.40 | 0.83 | 15.36 |
| D | 1.00 | 0.50 | 0.40 | 0.33 | 0.00 | 0.17 | 0.50 | 0.50 | 0.50 | 0.83 | 0.50 | 0.40 | 0.00 | 0.20 | 0.50 | 0.40 | 0.29 | 0.20 | 0.00 | 0.00 | 0.75 | 0.17 | 0.40 | 0.20 | 0.14 | 0.17 | 0.67 | 0.50 | 0.00 | 0.17 | 0.00 | 0.33 | 6.16 |
| E | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.50 | 1.00 | 0.20 | 1.67 | 0.80 | 0.50 | 0.80 | 0.43 | 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 | 3.65 |
| F | 1.00 | 0.75 | 1.00 | 1.00 | 0.40 | 0.17 | 0.17 | 0.50 | 0.67 | 0.33 | 0.17 | 0.40 | 0.33 | 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 | 0.23 | 4.18 |
| G | 0.00 | 0.00 | 0.00 | 0.00 | 0.60 | 0.83 | 0.83 | 0.50 | 0.17 | 0.33 | 0.50 | 1.20 | 0.00 | 0.80 | 0.50 | 0.00 | 0.29 | 0.40 | 0.00 | 0.67 | 0.25 | 0.50 | 0.00 | 0.00 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.27 | 5.05 |
| H | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.17 | 0.17 | 0.40 | 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 | 0.17 | 0.33 | 0.00 | 0.00 | 0.17 | 0.00 | 0.06 | 1.15 |
| I | 0.75 | 0.75 | 1.00 | 0.67 | 0.60 | 0.83 | 0.67 | 1.25 | 1.17 | 0.50 | 1.83 | 2.20 | 3.00 | 1.80 | 1.00 | 2.40 | 2.00 | 2.20 | 1.33 | 0.50 | 0.25 | 0.00 | 0.20 | 1.20 | 1.29 | 0.83 | 0.67 | 1.00 | 1.40 | 1.17 | 1.60 | 1.16 | 21.40 |
| x | 2.50 | 4.00 | 2.20 | 2.83 | 2.40 | 2.00 | 2.50 | 1.00 | 0.50 | 0.83 | 1.50 | 1.20 | 2.00 | 2.20 | 2.17 | 2.60 | 1.00 | 3.00 | 1.33 | 1.50 | 3.75 | 3.00 | 3.60 | 3.00 | 2.29 | 2.50 | 2.67 | 2.83 | 3.60 | 3.83 | 2.20 | 2.34 | 43.05 |
| r | 1.00 | 0.00 | 0.60 | 0.83 | 0.20 | 0.50 | 0.17 | 0.00 | 0.00 | 0.17 | 0.33 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.40 | 0.50 | 1.00 | 0.75 | 0.33 | 0.00 | 0.40 | 0.29 | 0.50 | 0.00 | 0.33 | 0.80 | 0.17 | 0.00 | 0.31 | 5.70 |
| s | 1.25 | 2.00 | 1.20 | 1.33 | 0.80 | 1.00 | 1.00 | 1.50 | 0.83 | 1.50 | 1.50 | 2.00 | 3.67 | 3.60 | 3.00 | 3.80 | 2.57 | 2.80 | 1.33 | 0.67 | 0.75 | 0.33 | 0.40 | 1.60 | 1.43 | 1.33 | 1.00 | 1.00 | 1.20 | 1.33 | 1.60 | 1.59 | 29.28 |
| a | 1.50 | 0.25 | 0.60 | 0.33 | 0.60 | 0.00 | 0.83 | 1.00 | 0.83 | 0.83 | 1.00 | 1.80 | 1.33 | 1.20 | 1.50 | 0.60 | 1.29 | 1.00 | 1.17 | 0.33 | 0.00 | 0.50 | 0.80 | 0.20 | 0.43 | 0.17 | 0.67 | 0.67 | 0.00 | 0.50 | 0.40 | 0.72 | 13.25 |
| h | 0.50 | 0.00 | 0.60 | 0.83 | 0.80 | 0.83 | 0.67 | 0.75 | 0.67 | 0.33 | 0.33 | 0.20 | 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 | 0.17 | 0.33 | 0.00 | 0.00 | 0.17 | 0.00 | 0.24 | 4.38 |
| k | 0.75 | 0.75 | 0.40 | 0.17 | 0.20 | 0.17 | 0.33 | 0.00 | 0.83 | 0.83 | 1.33 | 1.20 | 0.00 | 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 | 0.24 | 4.33 |
| x | 2.75 | 1.75 | 2.20 | 2.33 | 1.40 | 1.17 | 2.17 | 1.25 | 1.67 | 1.50 | 3.17 | 3.20 | 4.00 | 3.40 | 2.67 | 3.80 | 2.57 | 3.00 | 1.67 | 1.50 | 2.50 | 0.83 | 2.00 | 2.60 | 2.00 | 2.83 | 2.67 | 2.33 | 3.40 | 3.67 | 3.80 | 2.44 | 44.98 |
| o | 3.50 | 4.50 | 2.40 | 3.00 | 3.20 | 3.17 | 3.00 | 2.00 | 1.17 | 1.67 | 1.33 | 2.40 | 1.00 | 2.60 | 3.83 | 2.40 | 1.86 | 4.20 | 2.67 | 2.00 | 2.75 | 3.33 | 2.80 | 2.40 | 2.00 | 1.50 | 1.33 | 2.50 | 2.20 | 2.33 | 0.40 | 2.43 | 44.78 |
| i | 1.25 | 0.75 | 1.00 | 1.00 | 0.40 | 0.17 | 0.33 | 1.00 | 0.83 | 1.33 | 1.50 | 0.80 | 2.00 | 1.20 | 0.83 | 0.80 | 0.43 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.43 | 0.33 | 0.67 | 0.00 | 0.00 | 0.00 | 0.00 | 0.56 | 10.24 |
| 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 | 0.00 | 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 |
| CV | 104.00 | 72.50 | 78.60 | 82.00 | 69.00 | 68.17 | 76.83 | 78.00 | 88.50 | 92.17 | 112.83 | 113.60 | 83.33 | 85.00 | 82.33 | 66.20 | 52.57 | 51.60 | 27.50 | 24.50 | 29.75 | 23.33 | 20.40 | 27.00 | 27.00 | 29.67 | 42.33 | 26.83 | 21.00 | 32.17 | 21.40 | 58.39 | 100 |
| CVn | 18.00 | 19.75 | 5.40 | 4.50 | 1.00 | 1.67 | 1.50 | 0.50 | 0.17 | 8.33 | 9.17 | 20.20 | 20.00 | 21.20 | 24.67 | 21.20 | 20.43 | 29.00 | 20.50 | 24.00 | 25.00 | 15.00 | 11.40 | 9.80 | 8.43 | 0.33 | 0.67 | 0.00 | 0.00 | 10.00 | 7.20 | 11.58 | 19.83 |
| CVs | 86.00 | 52.75 | 73.20 | 77.50 | 68.00 | 66.50 | 75.33 | 77.50 | 88.33 | 83.83 | 103.67 | 93.40 | 63.33 | 63.80 | 57.67 | 45.00 | 32.14 | 22.60 | 7.00 | 0.50 | 4.75 | 8.33 | 9.00 | 17.20 | 18.57 | 29.33 | 41.67 | 26.83 | 21.00 | 22.17 | 14.20 | 46.81 | 80.17 |
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