Statistics of sunspot activity
March, 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 | 141.75 | 124.75 | | | | | | 84.60 | 88.17 | 77.83 | 56.40 | 34.00 | 13.40 | 40.25 | 61.40 | 91.00 | 96.50 | 109.00 | 103.50 | 116.57 | 118.67 | 87.00 | 87.83 | 89.71 | 83.67 | 98.50 | 92.60 | | 73.00 | 62.33 | 69.75 | 84.09 | 100 |
| Wn | 26.50 | 18.25 | | | | | | 0.00 | 9.67 | 10.17 | 7.40 | 2.40 | 0.00 | 8.50 | 16.40 | 17.20 | 13.00 | 21.50 | 5.75 | 0.00 | 0.00 | 0.00 | 0.00 | 8.29 | 13.33 | 18.50 | 14.40 | | 0.00 | 0.00 | 0.00 | 8.45 | 10.05 |
| Ws | 115.25 | 106.50 | | | | | | 84.60 | 78.50 | 67.67 | 49.00 | 31.60 | 13.40 | 31.75 | 45.00 | 73.80 | 83.50 | 87.50 | 97.75 | 116.57 | 118.67 | 87.00 | 87.83 | 81.43 | 70.33 | 80.00 | 78.20 | | 73.00 | 62.33 | 69.75 | 75.64 | 89.95 |
| n | 9.00 | 7.75 | | | | | | 5.20 | 5.00 | 4.17 | 3.60 | 2.40 | 1.20 | 2.50 | 3.60 | 4.00 | 4.00 | 5.33 | 4.50 | 5.00 | 5.17 | 4.67 | 5.00 | 5.71 | 5.83 | 7.25 | 7.00 | | 5.75 | 4.50 | 5.00 | 4.93 | 100 |
| A | 1.00 | 1.00 | | | | | | 0.40 | 0.67 | 0.33 | 0.60 | 0.20 | 0.80 | 0.00 | 0.00 | 0.00 | 0.50 | 1.00 | 0.50 | 0.14 | 0.50 | 0.50 | 0.67 | 0.71 | 0.83 | 1.75 | 1.40 | | 1.00 | 1.83 | 2.50 | 0.75 | 15.30 |
| B | 1.50 | 1.75 | | | | | | 0.00 | 0.17 | 0.50 | 0.40 | 0.80 | 0.20 | 1.00 | 0.20 | 0.00 | 0.00 | 0.67 | 0.25 | 0.43 | 0.33 | 0.33 | 0.67 | 1.57 | 1.00 | 0.25 | 1.00 | | 1.25 | 0.83 | 1.50 | 0.66 | 13.48 |
| C | 2.25 | 2.00 | | | | | | 0.20 | 1.00 | 0.33 | 0.20 | 1.00 | 0.00 | 1.00 | 0.60 | 0.00 | 0.50 | 0.50 | 0.50 | 1.86 | 1.83 | 1.17 | 1.33 | 1.14 | 2.50 | 1.00 | 1.60 | | 1.75 | 0.83 | 0.00 | 1.00 | 20.38 |
| D | 1.50 | 1.50 | | | | | | 3.00 | 2.17 | 1.83 | 1.80 | 0.40 | 0.00 | 0.50 | 1.60 | 2.00 | 1.00 | 1.00 | 1.75 | 1.57 | 0.83 | 1.17 | 1.33 | 1.43 | 0.50 | 2.25 | 1.60 | | 0.25 | 0.83 | 1.00 | 1.31 | 26.65 |
| E | 0.25 | 0.00 | | | | | | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.33 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | | 0.00 | 0.00 | 0.00 | 0.05 | 1.02 |
| 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 |
| G | 0.00 | 0.25 | | | | | | 0.40 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.60 | 1.00 | 0.50 | 0.50 | 0.50 | 0.14 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | | 0.00 | 0.00 | 0.00 | 0.18 | 3.57 |
| H | 0.75 | 0.75 | | | | | | 0.00 | 0.33 | 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 | 0.17 | 0.14 | 0.17 | 0.00 | 0.00 | | 0.00 | 0.00 | 0.00 | 0.10 | 2.01 |
| I | 1.75 | 0.50 | | | | | | 1.20 | 0.67 | 0.83 | 0.60 | 0.00 | 0.20 | 0.00 | 0.60 | 1.00 | 1.00 | 1.33 | 1.00 | 0.86 | 1.17 | 1.50 | 0.83 | 0.71 | 0.83 | 2.00 | 1.40 | | 1.50 | 0.17 | 0.00 | 0.87 | 17.59 |
| x | 2.50 | 2.75 | | | | | | 0.40 | 0.83 | 0.83 | 1.00 | 1.00 | 1.00 | 1.00 | 0.20 | 0.00 | 0.50 | 1.67 | 0.75 | 0.57 | 0.83 | 0.83 | 1.33 | 2.29 | 1.83 | 2.00 | 2.40 | | 2.25 | 2.67 | 4.00 | 1.42 | 28.78 |
| r | 0.50 | 0.00 | | | | | | 0.00 | 0.00 | 0.00 | 0.20 | 0.40 | 0.00 | 0.25 | 0.20 | 0.40 | 0.50 | 0.00 | 0.00 | 0.86 | 1.67 | 1.17 | 1.50 | 0.71 | 0.83 | 0.50 | 1.60 | | 1.75 | 0.50 | 0.00 | 0.54 | 10.99 |
| s | 2.25 | 1.50 | | | | | | 3.00 | 2.17 | 2.17 | 2.40 | 1.00 | 0.00 | 0.75 | 1.60 | 0.60 | 1.00 | 1.83 | 2.00 | 1.00 | 0.67 | 0.50 | 0.33 | 1.00 | 2.00 | 2.25 | 1.60 | | 1.75 | 0.83 | 0.75 | 1.40 | 28.38 |
| a | 1.25 | 1.75 | | | | | | 1.60 | 1.33 | 0.50 | 0.00 | 0.00 | 0.20 | 0.50 | 1.40 | 2.20 | 1.00 | 0.83 | 0.25 | 0.57 | 0.33 | 0.50 | 0.17 | 0.71 | 0.67 | 2.50 | 1.40 | | 0.00 | 0.17 | 0.25 | 0.80 | 16.31 |
| h | 1.25 | 1.00 | | | | | | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.75 | 1.00 | 0.50 | 0.50 | 0.50 | 0.29 | 0.17 | 0.00 | 0.00 | | 0.00 | 0.33 | 0.00 | 0.28 | 5.65 |
| k | 1.25 | 0.75 | | | | | | 0.20 | 0.33 | 0.67 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.80 | 1.00 | 0.67 | 0.75 | 1.00 | 1.17 | 1.17 | 1.17 | 0.71 | 0.33 | 0.00 | 0.00 | | 0.00 | 0.00 | 0.00 | 0.49 | 9.88 |
| x | 3.50 | 2.25 | | | | | | 1.60 | 1.67 | 1.33 | 1.20 | 0.20 | 1.00 | 0.00 | 0.60 | 1.00 | 1.50 | 2.33 | 1.50 | 1.00 | 1.67 | 2.00 | 1.67 | 1.57 | 1.83 | 3.75 | 2.80 | | 2.50 | 2.00 | 2.50 | 1.72 | 34.90 |
| o | 5.25 | 5.00 | | | | | | 3.20 | 2.83 | 2.67 | 2.40 | 2.20 | 0.20 | 2.50 | 2.80 | 2.40 | 1.50 | 1.83 | 2.00 | 3.14 | 2.33 | 1.67 | 2.50 | 3.86 | 4.00 | 3.50 | 3.80 | | 3.25 | 2.33 | 2.50 | 2.79 | 56.58 |
| i | 0.25 | 0.50 | | | | | | 0.40 | 0.50 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.60 | 1.00 | 1.17 | 0.75 | 0.43 | 1.00 | 0.83 | 0.67 | 0.14 | 0.00 | 0.00 | 0.40 | | 0.00 | 0.17 | 0.00 | 0.37 | 7.45 |
| 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 | 0.25 | 0.43 | 0.17 | 0.17 | 0.17 | 0.14 | 0.00 | 0.00 | 0.00 | | 0.00 | 0.00 | 0.00 | 0.05 | 1.07 |
| CV | 155.50 | 122.00 | | | | | | 95.80 | 87.17 | 78.17 | 53.40 | 20.40 | 2.60 | 21.75 | 64.40 | 87.20 | 79.00 | 86.83 | 110.00 | 118.00 | 96.50 | 91.17 | 90.50 | 75.71 | 58.83 | 73.75 | 58.80 | | 33.50 | 41.17 | 29.00 | 73.25 | 100 |
| CVn | 31.50 | 11.75 | | | | | | 0.00 | 1.00 | 1.33 | 1.00 | 0.40 | 0.00 | 1.75 | 14.00 | 19.00 | 3.00 | 4.00 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 1.86 | 4.67 | 19.00 | 13.80 | | 0.00 | 0.00 | 0.00 | 5.14 | 7.02 |
| CVs | 124.00 | 110.25 | | | | | | 95.80 | 86.17 | 76.83 | 52.40 | 20.00 | 2.60 | 20.00 | 50.40 | 68.20 | 76.00 | 82.83 | 109.50 | 118.00 | 96.50 | 91.17 | 90.50 | 73.86 | 54.17 | 54.75 | 45.00 | | 33.50 | 41.17 | 29.00 | 68.10 | 92.98 |
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