Statistics of sunspot activity
May, 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 | 96.50 | 107.25 | 68.60 | 58.67 | 36.00 | 28.50 | 43.33 | 69.50 | 89.17 | 99.33 | 115.17 | 123.29 | 141.00 | 116.80 | 100.50 | 116.25 | 101.33 | 76.17 | 90.60 | 85.17 | 78.67 | 70.67 | 100.43 | 94.00 | 84.43 | 101.71 | 90.00 | 65.00 | 90.00 | 73.40 | 84.67 | 86.97 | 100 |
| Wn | 0.00 | 0.00 | 0.00 | 0.00 | 6.60 | 24.50 | 43.33 | 61.33 | 72.50 | 75.50 | 91.00 | 96.43 | 105.00 | 86.80 | 52.50 | 61.50 | 35.17 | 24.33 | 7.40 | 0.00 | 0.00 | 0.00 | 0.00 | 5.50 | 0.00 | 5.00 | 2.20 | 2.00 | 1.86 | 0.00 | 0.00 | 27.76 | 31.91 |
| Ws | 96.50 | 107.25 | 68.60 | 58.67 | 29.40 | 4.00 | 0.00 | 8.17 | 16.67 | 23.83 | 24.17 | 26.86 | 36.00 | 30.00 | 48.00 | 54.75 | 66.17 | 51.83 | 83.20 | 85.17 | 78.67 | 70.67 | 100.43 | 88.50 | 84.43 | 96.71 | 87.80 | 63.00 | 88.14 | 73.40 | 84.67 | 59.21 | 68.09 |
| n | 2.33 | 3.00 | 2.60 | 3.33 | 2.80 | 2.00 | 2.00 | 2.67 | 3.00 | 3.67 | 3.83 | 4.86 | 5.20 | 4.20 | 4.17 | 5.00 | 5.00 | 4.00 | 4.60 | 4.17 | 3.33 | 3.33 | 4.00 | 3.25 | 2.29 | 4.57 | 5.20 | 3.83 | 5.14 | 4.00 | 4.50 | 3.74 | 100 |
| A | 0.17 | 0.25 | 0.20 | 0.67 | 0.80 | 0.33 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 1.43 | 1.20 | 0.80 | 0.67 | 1.00 | 1.50 | 0.33 | 0.00 | 0.67 | 0.17 | 0.17 | 0.71 | 1.00 | 0.00 | 0.43 | 1.60 | 0.17 | 0.71 | 1.20 | 0.50 | 0.54 | 14.53 |
| B | 0.00 | 0.75 | 0.20 | 0.67 | 0.00 | 0.00 | 0.00 | 0.50 | 0.33 | 0.33 | 0.17 | 0.71 | 1.40 | 0.60 | 0.00 | 0.25 | 0.17 | 0.00 | 1.20 | 0.50 | 0.33 | 0.33 | 0.86 | 0.00 | 0.14 | 1.00 | 0.20 | 1.00 | 1.43 | 1.60 | 1.33 | 0.52 | 13.82 |
| C | 0.00 | 0.00 | 0.00 | 0.50 | 0.60 | 0.00 | 0.00 | 0.50 | 0.67 | 1.83 | 1.83 | 1.00 | 0.80 | 0.40 | 0.17 | 0.75 | 1.33 | 1.83 | 1.00 | 1.00 | 0.83 | 0.17 | 0.00 | 0.25 | 0.00 | 0.43 | 0.40 | 0.67 | 1.00 | 0.20 | 1.33 | 0.63 | 16.82 |
| D | 0.33 | 0.00 | 0.40 | 0.17 | 0.80 | 0.00 | 0.00 | 0.00 | 0.33 | 0.17 | 0.00 | 0.00 | 0.60 | 1.00 | 1.50 | 0.50 | 0.67 | 0.17 | 0.80 | 0.83 | 0.83 | 1.00 | 1.00 | 0.75 | 1.00 | 1.00 | 0.40 | 0.17 | 0.71 | 0.00 | 0.33 | 0.50 | 13.35 |
| E | 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 | 0.17 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.43 | 0.60 | 0.83 | 0.07 | 1.92 |
| F | 1.00 | 1.00 | 0.80 | 0.33 | 0.00 | 0.00 | 0.67 | 0.83 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.83 | 0.75 | 0.67 | 0.33 | 0.40 | 0.50 | 0.67 | 0.67 | 0.86 | 0.25 | 0.57 | 0.71 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.58 | 15.57 |
| G | 0.67 | 1.00 | 1.00 | 1.00 | 0.00 | 1.00 | 0.33 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.75 | 0.33 | 1.00 | 0.40 | 0.50 | 0.33 | 0.33 | 0.14 | 0.75 | 0.43 | 0.86 | 2.20 | 1.83 | 0.57 | 0.40 | 0.17 | 0.53 | 14.10 |
| 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 | 0.14 | 0.14 | 0.00 | 0.00 | 0.14 | 0.00 | 0.00 | 0.01 | 0.37 |
| I | 0.17 | 0.00 | 0.00 | 0.00 | 0.60 | 0.67 | 1.00 | 0.67 | 0.50 | 0.33 | 0.83 | 0.71 | 0.20 | 0.40 | 0.83 | 1.00 | 0.33 | 0.17 | 0.60 | 0.17 | 0.17 | 0.67 | 0.43 | 0.25 | 0.00 | 0.00 | 0.20 | 0.00 | 0.14 | 0.00 | 0.00 | 0.36 | 9.52 |
| x | 0.17 | 1.00 | 0.40 | 1.33 | 0.80 | 0.33 | 0.00 | 0.50 | 0.50 | 0.33 | 0.17 | 2.14 | 2.60 | 1.40 | 0.67 | 1.25 | 1.67 | 0.33 | 1.20 | 1.17 | 0.50 | 0.50 | 1.57 | 1.00 | 0.14 | 1.43 | 1.80 | 1.17 | 2.14 | 2.80 | 1.83 | 1.06 | 28.35 |
| r | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.50 | 1.00 | 0.86 | 0.40 | 0.20 | 0.00 | 0.00 | 0.17 | 0.50 | 0.20 | 0.33 | 0.33 | 0.00 | 0.14 | 0.25 | 0.00 | 0.14 | 0.00 | 0.00 | 0.43 | 0.20 | 0.50 | 0.21 | 5.60 |
| s | 0.17 | 0.00 | 0.00 | 0.17 | 1.00 | 0.50 | 0.83 | 0.83 | 0.67 | 1.17 | 1.67 | 0.71 | 0.20 | 0.80 | 1.33 | 1.75 | 1.33 | 1.50 | 1.00 | 0.83 | 0.50 | 1.33 | 1.14 | 0.75 | 0.86 | 1.43 | 1.00 | 0.33 | 0.57 | 0.00 | 0.50 | 0.80 | 21.47 |
| a | 0.00 | 0.00 | 0.40 | 0.33 | 0.80 | 0.17 | 0.17 | 0.33 | 0.50 | 0.67 | 0.00 | 0.14 | 1.00 | 0.80 | 1.17 | 1.00 | 0.83 | 0.67 | 1.20 | 0.83 | 1.00 | 0.83 | 0.57 | 0.75 | 0.86 | 0.43 | 0.80 | 0.83 | 1.00 | 0.00 | 0.83 | 0.61 | 16.33 |
| 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 | 0.17 | 0.40 | 0.33 | 0.17 | 0.33 | 0.14 | 0.50 | 0.14 | 0.14 | 0.80 | 1.33 | 1.00 | 1.00 | 0.33 | 0.22 | 5.86 |
| k | 2.00 | 2.00 | 1.80 | 1.50 | 0.20 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 0.83 | 0.60 | 0.67 | 0.83 | 0.33 | 0.43 | 0.00 | 0.29 | 1.00 | 0.80 | 0.17 | 0.00 | 0.00 | 0.50 | 0.84 | 22.39 |
| x | 0.33 | 0.25 | 0.20 | 0.67 | 1.40 | 1.00 | 1.00 | 0.67 | 0.67 | 0.33 | 0.83 | 2.14 | 1.40 | 1.20 | 1.50 | 2.00 | 1.83 | 0.50 | 0.60 | 0.83 | 0.33 | 0.83 | 1.14 | 1.25 | 0.14 | 0.57 | 1.80 | 0.17 | 1.00 | 1.20 | 0.50 | 0.91 | 24.42 |
| o | 1.00 | 1.75 | 1.60 | 2.33 | 1.40 | 1.00 | 0.33 | 1.17 | 1.33 | 2.33 | 2.00 | 1.71 | 2.80 | 2.00 | 1.83 | 2.00 | 2.33 | 2.83 | 3.40 | 2.50 | 2.00 | 1.50 | 1.86 | 1.75 | 1.57 | 3.29 | 3.00 | 3.67 | 3.71 | 2.20 | 3.00 | 2.10 | 56.28 |
| i | 1.00 | 1.00 | 0.80 | 0.33 | 0.00 | 0.00 | 0.67 | 0.50 | 0.83 | 0.83 | 0.83 | 1.00 | 1.00 | 1.00 | 0.83 | 1.00 | 0.83 | 0.67 | 0.60 | 0.83 | 1.00 | 1.00 | 1.00 | 0.25 | 0.57 | 0.71 | 0.40 | 0.00 | 0.43 | 0.60 | 1.00 | 0.69 | 18.58 |
| c | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.17 | 0.17 | 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 | 0.03 | 0.72 |
| CV | 93.50 | 93.75 | 90.80 | 75.33 | 33.40 | 50.83 | 56.50 | 62.67 | 66.50 | 72.33 | 72.33 | 63.43 | 70.00 | 78.00 | 89.33 | 88.25 | 78.67 | 79.67 | 82.80 | 77.83 | 74.50 | 73.83 | 69.00 | 58.75 | 59.71 | 96.43 | 112.80 | 94.17 | 80.14 | 57.20 | 64.33 | 74.74 | 100 |
| CVn | 0.00 | 0.00 | 0.00 | 0.00 | 5.40 | 50.50 | 56.50 | 60.33 | 56.67 | 58.67 | 57.67 | 57.71 | 55.20 | 54.20 | 47.50 | 48.00 | 47.00 | 47.00 | 11.60 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.00 | 0.71 | 0.20 | 0.17 | 0.29 | 0.00 | 0.00 | 23.09 | 30.90 |
| CVs | 93.50 | 93.75 | 90.80 | 75.33 | 28.00 | 0.33 | 0.00 | 2.33 | 9.83 | 13.67 | 14.67 | 5.71 | 14.80 | 23.80 | 41.83 | 40.25 | 31.67 | 32.67 | 71.20 | 77.83 | 74.50 | 73.83 | 69.00 | 58.25 | 59.71 | 95.71 | 112.60 | 94.00 | 79.86 | 57.20 | 64.33 | 51.64 | 69.10 |
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