Statistics of sunspot activity
January, 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 | 109.50 | 81.33 | 87.17 | 57.60 | 118.00 | 151.50 | 180.00 | 163.40 | 139.67 | 148.50 | 107.20 | 115.60 | 139.25 | 135.80 | 138.50 | 140.20 | 141.25 | 139.80 | 128.80 | 112.00 | 110.67 | 90.50 | 81.00 | 112.50 | 108.50 | 106.00 | 96.75 | 123.00 | 158.00 | 129.33 | 169.00 | 123.24 | 100 |
| Wn | 36.50 | 36.33 | 36.00 | 9.40 | 24.00 | 18.50 | 27.00 | 29.60 | 11.67 | 11.50 | 8.80 | 33.20 | 53.75 | 57.80 | 65.50 | 74.20 | 75.75 | 75.40 | 64.80 | 54.00 | 51.00 | 36.50 | 43.25 | 60.25 | 55.50 | 49.00 | 42.25 | 51.40 | 55.25 | 45.00 | 51.50 | 43.37 | 35.20 |
| Ws | 73.00 | 45.00 | 51.17 | 48.20 | 94.00 | 133.00 | 153.00 | 133.80 | 128.00 | 137.00 | 98.40 | 82.40 | 85.50 | 78.00 | 73.00 | 66.00 | 65.50 | 64.40 | 64.00 | 58.00 | 59.67 | 54.00 | 37.75 | 52.25 | 53.00 | 57.00 | 54.50 | 71.60 | 102.75 | 84.33 | 117.50 | 79.86 | 64.80 |
| n | 6.50 | 6.00 | 6.00 | 3.60 | 6.67 | 8.25 | 10.00 | 9.60 | 7.33 | 7.50 | 6.20 | 7.80 | 10.25 | 10.20 | 9.50 | 8.40 | 8.00 | 7.00 | 6.80 | 6.50 | 8.00 | 7.00 | 6.00 | 8.75 | 7.50 | 6.40 | 5.50 | 6.00 | 7.00 | 6.00 | 7.00 | 7.33 | 100 |
| A | 1.50 | 1.67 | 1.00 | 0.80 | 1.33 | 1.75 | 3.00 | 2.60 | 2.00 | 1.50 | 0.00 | 0.60 | 0.75 | 2.20 | 1.75 | 0.40 | 0.25 | 0.20 | 0.40 | 0.25 | 0.00 | 1.50 | 0.75 | 1.50 | 0.00 | 0.80 | 0.00 | 0.80 | 0.75 | 0.33 | 1.00 | 1.01 | 13.81 |
| B | 1.00 | 1.00 | 0.83 | 0.00 | 0.33 | 0.50 | 0.00 | 1.20 | 0.33 | 1.00 | 0.40 | 1.00 | 0.50 | 1.20 | 0.75 | 0.60 | 0.50 | 0.20 | 0.40 | 0.25 | 0.00 | 0.25 | 0.50 | 1.00 | 1.00 | 1.20 | 0.75 | 0.40 | 1.25 | 0.00 | 0.50 | 0.61 | 8.29 |
| C | 2.25 | 1.33 | 1.33 | 0.40 | 1.00 | 1.00 | 3.00 | 1.60 | 2.00 | 1.50 | 3.40 | 3.20 | 2.00 | 3.00 | 2.50 | 2.80 | 2.50 | 2.20 | 2.80 | 2.25 | 1.67 | 1.50 | 1.25 | 2.25 | 1.50 | 1.20 | 1.25 | 0.80 | 1.50 | 1.00 | 0.50 | 1.82 | 24.86 |
| D | 0.75 | 0.33 | 0.50 | 1.60 | 2.00 | 1.50 | 2.00 | 1.20 | 2.00 | 2.50 | 1.80 | 1.40 | 1.50 | 0.80 | 2.75 | 3.00 | 2.25 | 2.00 | 1.20 | 1.00 | 0.33 | 0.25 | 0.00 | 0.75 | 2.00 | 2.20 | 2.50 | 2.20 | 2.00 | 2.33 | 1.50 | 1.55 | 21.19 |
| E | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.00 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.25 | 0.33 | 0.00 | 0.07 | 0.94 |
| 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 | 0.33 | 0.00 | 0.01 | 0.15 |
| G | 1.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.80 | 0.67 | 0.50 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.40 | 0.20 | 0.25 | 1.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.40 | 0.50 | 0.67 | 2.50 | 0.31 | 4.24 |
| H | 0.00 | 1.33 | 0.17 | 0.40 | 1.00 | 0.50 | 0.00 | 0.40 | 0.00 | 0.00 | 0.00 | 0.20 | 0.25 | 0.60 | 0.00 | 0.00 | 0.25 | 0.20 | 0.00 | 0.50 | 0.67 | 0.00 | 0.25 | 0.25 | 0.50 | 0.00 | 0.25 | 0.20 | 0.25 | 0.67 | 0.00 | 0.28 | 3.89 |
| I | 0.00 | 0.33 | 2.17 | 0.40 | 1.00 | 2.25 | 2.00 | 1.40 | 0.33 | 0.50 | 0.60 | 1.40 | 5.00 | 2.40 | 1.75 | 1.60 | 2.25 | 1.80 | 1.60 | 1.75 | 4.33 | 3.25 | 3.25 | 3.00 | 2.50 | 1.00 | 0.75 | 1.00 | 0.50 | 0.33 | 1.00 | 1.66 | 22.64 |
| x | 2.50 | 2.67 | 1.83 | 0.80 | 1.67 | 2.25 | 3.00 | 3.80 | 2.33 | 2.50 | 0.40 | 1.60 | 1.25 | 3.40 | 2.50 | 1.00 | 0.75 | 0.40 | 0.80 | 0.50 | 0.00 | 1.75 | 1.25 | 2.50 | 1.00 | 2.00 | 0.75 | 1.20 | 2.00 | 0.33 | 1.50 | 1.62 | 22.10 |
| r | 0.50 | 1.00 | 0.83 | 0.20 | 0.33 | 0.00 | 0.00 | 0.20 | 0.67 | 0.00 | 0.20 | 0.80 | 1.25 | 0.40 | 0.75 | 0.40 | 0.00 | 0.20 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.40 | 0.25 | 0.40 | 0.75 | 0.00 | 0.00 | 0.32 | 4.31 |
| s | 0.75 | 1.00 | 2.00 | 1.00 | 1.67 | 3.00 | 4.00 | 2.40 | 2.00 | 1.50 | 3.40 | 4.00 | 6.00 | 4.20 | 2.50 | 3.00 | 3.50 | 3.60 | 3.40 | 2.50 | 3.33 | 2.50 | 3.75 | 5.00 | 2.50 | 2.60 | 2.25 | 2.00 | 1.00 | 3.00 | 2.25 | 2.76 | 37.67 |
| a | 2.00 | 0.00 | 0.67 | 1.00 | 1.67 | 2.00 | 1.00 | 2.00 | 1.67 | 3.00 | 1.40 | 1.20 | 1.25 | 1.20 | 2.50 | 2.60 | 1.75 | 1.20 | 1.20 | 1.50 | 2.67 | 1.50 | 0.25 | 1.00 | 3.50 | 1.20 | 1.25 | 1.80 | 2.00 | 0.67 | 1.75 | 1.56 | 21.29 |
| h | 0.75 | 1.33 | 0.67 | 0.60 | 1.33 | 0.50 | 1.00 | 0.60 | 0.00 | 0.00 | 0.20 | 0.20 | 0.25 | 0.60 | 1.00 | 0.60 | 0.75 | 0.80 | 0.60 | 1.00 | 1.00 | 0.25 | 0.00 | 0.25 | 0.50 | 0.00 | 0.00 | 0.00 | 0.25 | 1.33 | 0.50 | 0.54 | 7.42 |
| k | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 1.00 | 0.60 | 0.67 | 0.50 | 0.60 | 0.00 | 0.25 | 0.40 | 0.25 | 0.80 | 1.25 | 0.80 | 0.80 | 1.00 | 1.00 | 0.75 | 0.75 | 0.00 | 0.00 | 0.20 | 1.00 | 0.60 | 1.00 | 0.67 | 1.00 | 0.53 | 7.21 |
| x | 1.50 | 3.33 | 3.33 | 1.60 | 3.33 | 4.50 | 5.00 | 4.40 | 2.33 | 2.00 | 0.60 | 2.20 | 6.00 | 5.20 | 3.50 | 2.00 | 2.75 | 2.20 | 2.00 | 2.50 | 5.00 | 4.75 | 4.25 | 4.75 | 3.00 | 1.80 | 1.00 | 2.00 | 1.50 | 1.33 | 2.00 | 2.96 | 40.34 |
| o | 5.00 | 2.67 | 2.67 | 1.80 | 2.67 | 2.75 | 4.00 | 4.60 | 5.00 | 5.00 | 5.20 | 5.40 | 4.25 | 4.80 | 5.75 | 5.60 | 4.00 | 4.20 | 4.40 | 3.50 | 2.67 | 2.25 | 1.75 | 4.00 | 4.50 | 4.60 | 4.25 | 3.60 | 4.50 | 3.00 | 4.00 | 3.95 | 53.85 |
| i | 0.00 | 0.00 | 0.00 | 0.20 | 0.67 | 1.00 | 1.00 | 0.60 | 0.00 | 0.50 | 0.40 | 0.20 | 0.00 | 0.20 | 0.25 | 0.80 | 1.25 | 0.60 | 0.40 | 0.50 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.40 | 1.00 | 1.67 | 0.75 | 0.42 | 5.71 |
| 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 | 0.25 | 0.01 | 0.11 |
| CV | 82.25 | 77.33 | 64.67 | 64.00 | 113.00 | 116.25 | 151.00 | 121.60 | 94.33 | 96.00 | 100.20 | 84.60 | 120.25 | 108.80 | 134.25 | 144.40 | 156.50 | 140.60 | 119.60 | 131.00 | 141.67 | 81.00 | 70.00 | 82.50 | 98.50 | 76.60 | 101.25 | 96.00 | 111.00 | 163.67 | 146.00 | 109.32 | 100 |
| CVn | 41.50 | 34.67 | 36.67 | 24.40 | 41.67 | 26.25 | 42.00 | 29.40 | 4.33 | 1.00 | 8.20 | 22.80 | 46.50 | 58.00 | 77.75 | 94.80 | 89.25 | 88.40 | 61.80 | 66.25 | 57.33 | 27.00 | 41.50 | 61.25 | 57.50 | 40.20 | 48.75 | 42.80 | 45.50 | 66.33 | 33.00 | 45.70 | 41.81 |
| CVs | 40.75 | 42.67 | 28.00 | 39.60 | 71.33 | 90.00 | 109.00 | 92.20 | 90.00 | 95.00 | 92.00 | 61.80 | 73.75 | 50.80 | 56.50 | 49.60 | 67.25 | 52.20 | 57.80 | 64.75 | 84.33 | 54.00 | 28.50 | 21.25 | 41.00 | 36.40 | 52.50 | 53.20 | 65.50 | 97.33 | 113.00 | 63.61 | 58.19 |
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