Statistics of sunspot activity
December, 1992
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 | 78.80 | 72.20 | 82.50 | 81.00 | 87.33 | 68.00 | 46.67 | 96.00 | 135.25 | 137.80 | 182.33 | 174.40 | 171.00 | 157.25 | 172.75 | 155.00 | 141.80 | 144.25 | 140.60 | 128.00 | 113.50 | 118.83 | 116.20 | 109.00 | 108.50 | 127.00 | 102.83 | 108.00 | 98.00 | 90.00 | 64.33 | 116.42 | 100 |
| Wn | 51.20 | 47.00 | 39.75 | 42.75 | 43.00 | 24.50 | 3.67 | 15.00 | 14.00 | 12.80 | 14.50 | 16.60 | 17.00 | 14.50 | 13.75 | 17.50 | 13.80 | 25.00 | 44.80 | 45.80 | 42.17 | 36.17 | 25.40 | 26.50 | 36.75 | 64.75 | 56.17 | 56.00 | 56.50 | 50.67 | 34.33 | 32.33 | 27.77 |
| Ws | 27.60 | 25.20 | 42.75 | 38.25 | 44.33 | 43.50 | 43.00 | 81.00 | 121.25 | 125.00 | 167.83 | 157.80 | 154.00 | 142.75 | 159.00 | 137.50 | 128.00 | 119.25 | 95.80 | 82.20 | 71.33 | 82.67 | 90.80 | 82.50 | 71.75 | 62.25 | 46.67 | 52.00 | 41.50 | 39.33 | 30.00 | 84.09 | 72.23 |
| n | 4.00 | 4.00 | 5.75 | 6.25 | 6.67 | 5.50 | 3.67 | 6.33 | 6.75 | 6.40 | 7.17 | 6.80 | 8.00 | 8.50 | 8.75 | 9.25 | 9.40 | 9.25 | 9.20 | 8.80 | 7.00 | 7.50 | 7.00 | 7.00 | 6.50 | 7.75 | 6.50 | 6.67 | 6.25 | 6.67 | 5.00 | 6.91 | 100 |
| A | 0.00 | 0.60 | 0.75 | 1.00 | 1.00 | 2.25 | 1.00 | 0.00 | 0.50 | 0.40 | 0.83 | 0.40 | 1.50 | 1.25 | 0.75 | 1.00 | 1.20 | 0.75 | 1.60 | 1.80 | 0.17 | 0.17 | 0.20 | 1.50 | 0.25 | 0.75 | 0.50 | 0.33 | 0.75 | 1.00 | 1.33 | 0.82 | 11.92 |
| B | 0.60 | 0.40 | 0.50 | 1.00 | 1.33 | 2.00 | 1.00 | 0.67 | 0.50 | 0.20 | 0.33 | 0.40 | 0.00 | 0.50 | 0.00 | 1.25 | 0.40 | 1.25 | 0.60 | 0.60 | 1.00 | 1.00 | 1.60 | 0.00 | 1.00 | 1.00 | 1.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.66 | 9.55 |
| C | 1.40 | 1.00 | 1.25 | 0.25 | 1.33 | 0.00 | 0.33 | 2.67 | 2.00 | 1.60 | 1.67 | 1.20 | 1.00 | 2.00 | 2.00 | 2.25 | 1.00 | 3.00 | 1.00 | 1.20 | 0.67 | 1.33 | 2.60 | 1.00 | 1.50 | 2.50 | 2.33 | 2.67 | 2.00 | 1.67 | 0.67 | 1.52 | 21.97 |
| D | 0.20 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 1.00 | 2.25 | 3.60 | 2.33 | 2.40 | 2.00 | 1.25 | 2.50 | 2.00 | 2.60 | 1.75 | 2.20 | 1.80 | 2.17 | 1.33 | 1.00 | 1.75 | 1.75 | 1.75 | 1.00 | 1.67 | 1.00 | 1.00 | 1.00 | 1.41 | 20.36 |
| E | 0.40 | 0.80 | 0.25 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 1.17 | 1.00 | 1.00 | 1.00 | 0.25 | 0.25 | 0.00 | 0.00 | 0.00 | 0.20 | 0.00 | 0.00 | 0.60 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.24 | 3.46 |
| F | 0.00 | 0.00 | 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 | 0.00 | 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 | 0.23 |
| G | 0.60 | 0.20 | 0.50 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.60 | 1.00 | 0.75 | 1.00 | 0.50 | 0.60 | 0.00 | 0.80 | 0.40 | 0.33 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.25 | 0.00 | 0.00 | 0.27 | 3.87 |
| H | 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 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.01 | 0.12 |
| I | 0.80 | 1.00 | 2.25 | 3.00 | 2.67 | 1.25 | 1.33 | 2.00 | 1.25 | 0.60 | 0.83 | 0.80 | 1.50 | 1.75 | 2.25 | 2.00 | 3.60 | 2.50 | 3.00 | 2.80 | 2.67 | 3.33 | 1.00 | 2.75 | 2.00 | 1.75 | 1.17 | 2.00 | 2.25 | 3.00 | 2.00 | 1.97 | 28.52 |
| x | 0.60 | 1.00 | 1.25 | 2.00 | 2.33 | 4.25 | 2.00 | 0.67 | 1.00 | 0.60 | 1.17 | 0.80 | 1.50 | 1.75 | 0.75 | 2.25 | 1.60 | 2.00 | 2.20 | 2.40 | 1.17 | 1.17 | 1.80 | 1.50 | 1.25 | 1.75 | 1.83 | 0.33 | 0.75 | 1.00 | 1.33 | 1.48 | 21.47 |
| r | 0.00 | 0.00 | 0.75 | 0.25 | 1.33 | 0.00 | 0.00 | 1.00 | 0.50 | 0.20 | 0.50 | 0.00 | 0.00 | 0.00 | 0.25 | 0.25 | 0.80 | 1.25 | 0.40 | 0.20 | 0.00 | 0.50 | 0.20 | 0.25 | 0.50 | 1.00 | 0.50 | 1.33 | 0.00 | 0.00 | 0.00 | 0.39 | 5.58 |
| s | 1.60 | 1.40 | 1.75 | 3.00 | 1.67 | 0.50 | 1.00 | 3.00 | 2.75 | 2.00 | 2.00 | 2.00 | 1.50 | 3.25 | 2.75 | 2.00 | 2.20 | 2.50 | 3.40 | 3.60 | 2.33 | 3.00 | 2.80 | 3.00 | 2.25 | 3.00 | 2.83 | 3.00 | 4.25 | 3.00 | 1.00 | 2.40 | 34.69 |
| a | 1.40 | 1.20 | 2.00 | 0.75 | 1.33 | 0.75 | 0.67 | 1.67 | 2.50 | 3.20 | 2.50 | 2.80 | 3.50 | 2.00 | 3.00 | 3.50 | 4.20 | 3.50 | 3.00 | 2.20 | 3.00 | 2.83 | 1.40 | 1.75 | 2.50 | 2.00 | 1.00 | 1.33 | 1.25 | 2.67 | 2.33 | 2.18 | 31.61 |
| h | 0.20 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.40 | 0.00 | 0.25 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.00 | 0.00 | 0.00 | 0.33 | 0.33 | 0.00 | 0.00 | 0.33 | 0.10 | 1.45 |
| k | 0.20 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.40 | 0.83 | 0.80 | 1.50 | 1.25 | 1.50 | 1.25 | 0.60 | 0.00 | 0.20 | 0.40 | 0.50 | 0.00 | 0.60 | 0.50 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.36 | 5.19 |
| x | 0.80 | 1.60 | 3.00 | 4.25 | 3.67 | 3.50 | 2.33 | 2.00 | 1.75 | 1.00 | 1.67 | 1.20 | 3.00 | 3.00 | 3.00 | 3.00 | 4.80 | 3.25 | 4.60 | 4.60 | 2.83 | 3.50 | 1.20 | 4.25 | 2.25 | 2.50 | 1.67 | 2.33 | 3.00 | 4.00 | 3.33 | 2.80 | 40.55 |
| o | 2.60 | 1.40 | 2.25 | 1.50 | 3.00 | 2.00 | 1.33 | 4.33 | 3.75 | 4.20 | 3.67 | 3.80 | 4.00 | 4.50 | 5.00 | 5.75 | 4.00 | 5.75 | 4.00 | 3.60 | 3.33 | 3.67 | 5.00 | 2.00 | 3.50 | 5.00 | 4.83 | 4.00 | 3.00 | 2.67 | 1.67 | 3.52 | 50.92 |
| i | 0.60 | 1.00 | 0.50 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 1.25 | 1.20 | 1.67 | 1.80 | 1.00 | 1.00 | 0.75 | 0.50 | 0.60 | 0.25 | 0.60 | 0.60 | 0.83 | 0.33 | 0.80 | 0.75 | 0.75 | 0.25 | 0.00 | 0.33 | 0.25 | 0.00 | 0.00 | 0.58 | 8.46 |
| c | 0.00 | 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 | 0.01 | 0.08 |
| CV | 62.80 | 56.40 | 53.25 | 62.00 | 40.33 | 16.50 | 18.00 | 62.67 | 86.00 | 106.00 | 126.33 | 137.80 | 141.50 | 139.50 | 166.50 | 125.25 | 116.60 | 82.50 | 108.20 | 101.80 | 97.00 | 78.17 | 94.60 | 84.50 | 70.00 | 75.00 | 70.33 | 92.33 | 71.75 | 63.33 | 53.67 | 85.83 | 100 |
| CVn | 49.40 | 45.60 | 30.75 | 40.25 | 16.00 | 3.25 | 3.33 | 10.67 | 10.25 | 10.20 | 10.17 | 10.40 | 11.00 | 10.50 | 9.25 | 10.25 | 12.60 | 11.25 | 29.80 | 31.00 | 33.83 | 24.00 | 11.80 | 25.25 | 30.25 | 38.50 | 41.00 | 63.33 | 47.00 | 37.33 | 31.00 | 24.17 | 28.16 |
| CVs | 13.40 | 10.80 | 22.50 | 21.75 | 24.33 | 13.25 | 14.67 | 52.00 | 75.75 | 95.80 | 116.17 | 127.40 | 130.50 | 129.00 | 157.25 | 115.00 | 104.00 | 71.25 | 78.40 | 70.80 | 63.17 | 54.17 | 82.80 | 59.25 | 39.75 | 36.50 | 29.33 | 29.00 | 24.75 | 26.00 | 22.67 | 61.66 | 71.84 |
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