Statistics of sunspot activity
July, 1988
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 | 143.14 | 137.00 | 177.67 | 160.33 | 138.00 | 112.80 | 109.20 | 112.50 | 94.57 | 135.20 | 101.33 | 98.71 | 108.14 | 120.86 | 109.67 | 132.17 | 143.50 | 145.14 | 123.67 | 120.14 | 117.17 | 120.43 | 104.86 | 84.71 | 70.63 | 70.00 | 111.33 | 138.14 | 177.50 | 155.83 | 163.57 | 123.80 | 100 |
| Wn | 51.86 | 56.67 | 74.83 | 62.83 | 56.20 | 57.40 | 73.60 | 88.33 | 85.00 | 121.00 | 89.83 | 77.00 | 65.71 | 68.86 | 57.83 | 46.83 | 38.83 | 26.14 | 3.67 | 10.29 | 27.17 | 32.00 | 36.29 | 42.71 | 39.50 | 27.86 | 60.50 | 91.00 | 123.00 | 113.83 | 116.43 | 62.03 | 50.11 |
| Ws | 91.29 | 80.33 | 102.83 | 97.50 | 81.80 | 55.40 | 35.60 | 24.17 | 9.57 | 14.20 | 11.50 | 21.71 | 42.43 | 52.00 | 51.83 | 85.33 | 104.67 | 119.00 | 120.00 | 109.86 | 90.00 | 88.43 | 68.57 | 42.00 | 31.13 | 42.14 | 50.83 | 47.14 | 54.50 | 42.00 | 47.14 | 61.77 | 49.89 |
| n | 4.14 | 4.50 | 4.67 | 5.33 | 5.60 | 6.00 | 6.40 | 7.17 | 5.14 | 6.80 | 4.50 | 4.71 | 5.00 | 5.14 | 5.00 | 5.00 | 6.17 | 7.29 | 6.33 | 6.71 | 6.83 | 7.71 | 7.14 | 5.86 | 5.00 | 4.71 | 6.17 | 6.43 | 5.83 | 5.33 | 6.00 | 5.76 | 100 |
| A | 0.00 | 0.00 | 0.67 | 1.17 | 2.20 | 0.60 | 0.60 | 2.00 | 1.00 | 1.20 | 0.50 | 0.14 | 0.00 | 0.14 | 0.00 | 0.33 | 0.67 | 2.00 | 1.67 | 0.86 | 1.00 | 0.86 | 0.86 | 0.86 | 1.50 | 1.43 | 1.50 | 0.43 | 0.17 | 0.17 | 0.00 | 0.79 | 13.72 |
| B | 0.00 | 0.33 | 0.00 | 0.50 | 0.40 | 1.00 | 0.80 | 1.00 | 1.14 | 2.40 | 0.00 | 0.14 | 0.00 | 0.14 | 0.00 | 0.17 | 1.67 | 1.86 | 1.17 | 2.71 | 1.67 | 1.86 | 1.14 | 1.43 | 1.50 | 0.71 | 1.33 | 1.86 | 1.17 | 0.00 | 0.86 | 0.93 | 16.21 |
| C | 0.14 | 0.50 | 1.17 | 0.17 | 0.20 | 0.40 | 0.20 | 0.50 | 0.00 | 0.40 | 0.33 | 0.14 | 0.00 | 0.57 | 1.17 | 1.33 | 1.33 | 1.43 | 1.33 | 0.86 | 1.17 | 1.29 | 1.14 | 0.57 | 0.75 | 0.86 | 0.83 | 1.43 | 1.00 | 0.50 | 1.00 | 0.73 | 12.71 |
| D | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.60 | 1.80 | 1.33 | 0.71 | 1.40 | 1.67 | 1.43 | 1.29 | 0.86 | 1.17 | 1.00 | 0.67 | 0.29 | 0.00 | 0.43 | 1.00 | 1.00 | 2.43 | 2.29 | 1.00 | 0.86 | 0.83 | 2.14 | 1.67 | 2.67 | 2.29 | 1.06 | 18.36 |
| E | 0.71 | 0.33 | 0.17 | 0.67 | 0.60 | 1.40 | 1.00 | 0.50 | 1.00 | 1.00 | 1.00 | 1.14 | 1.29 | 1.29 | 1.00 | 1.00 | 1.00 | 0.86 | 0.50 | 0.71 | 0.50 | 0.29 | 0.29 | 0.00 | 0.00 | 0.14 | 0.50 | 0.00 | 0.67 | 0.17 | 0.00 | 0.64 | 11.04 |
| F | 1.14 | 1.50 | 1.83 | 1.17 | 1.40 | 0.40 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.00 | 0.00 | 0.00 | 0.00 | 0.14 | 0.17 | 0.00 | 0.33 | 0.29 | 0.29 | 0.00 | 0.00 | 0.00 | 0.00 | 0.29 | 0.33 | 0.33 | 0.14 | 0.32 | 5.63 |
| G | 0.14 | 0.17 | 0.00 | 0.00 | 0.00 | 0.20 | 1.00 | 0.50 | 0.29 | 0.20 | 0.50 | 1.29 | 1.29 | 1.14 | 0.00 | 0.17 | 0.00 | 0.00 | 0.33 | 0.29 | 0.17 | 0.43 | 0.43 | 0.29 | 0.25 | 0.14 | 0.83 | 0.29 | 0.33 | 0.50 | 0.71 | 0.38 | 6.64 |
| H | 0.71 | 0.50 | 0.50 | 0.50 | 0.40 | 0.00 | 0.20 | 0.17 | 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 | 0.29 | 0.00 | 0.29 | 0.00 | 0.14 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.13 | 2.26 |
| I | 1.29 | 1.17 | 0.33 | 1.17 | 0.40 | 1.40 | 0.80 | 1.00 | 1.00 | 0.20 | 0.33 | 0.43 | 1.00 | 1.00 | 1.67 | 1.00 | 0.83 | 0.71 | 1.17 | 0.86 | 1.00 | 1.43 | 0.57 | 0.14 | 0.00 | 0.43 | 0.33 | 0.00 | 0.33 | 1.00 | 1.00 | 0.77 | 13.43 |
| x | 0.00 | 0.33 | 0.67 | 1.67 | 2.60 | 1.60 | 1.40 | 3.00 | 2.14 | 3.60 | 0.50 | 0.29 | 0.00 | 0.29 | 0.00 | 0.50 | 2.33 | 3.86 | 2.83 | 3.57 | 2.67 | 2.71 | 2.00 | 2.29 | 3.00 | 2.14 | 2.83 | 2.29 | 1.33 | 0.17 | 0.86 | 1.72 | 29.93 |
| r | 0.00 | 0.33 | 0.00 | 0.67 | 0.00 | 0.00 | 0.00 | 0.17 | 0.29 | 0.40 | 0.00 | 0.00 | 0.00 | 0.14 | 0.00 | 0.33 | 1.17 | 0.43 | 1.00 | 0.57 | 0.83 | 0.57 | 1.00 | 0.43 | 0.00 | 0.14 | 0.00 | 0.29 | 1.00 | 0.17 | 0.43 | 0.33 | 5.80 |
| s | 1.29 | 1.17 | 1.00 | 0.33 | 0.40 | 1.60 | 0.80 | 1.50 | 0.57 | 1.40 | 2.33 | 2.00 | 3.00 | 2.71 | 4.00 | 2.50 | 1.33 | 1.71 | 1.50 | 1.14 | 1.50 | 2.71 | 2.00 | 2.43 | 1.25 | 0.71 | 1.50 | 1.00 | 0.83 | 2.00 | 1.14 | 1.59 | 27.64 |
| a | 0.29 | 0.33 | 0.33 | 0.17 | 0.20 | 1.00 | 2.40 | 2.17 | 1.57 | 1.00 | 0.83 | 1.29 | 1.00 | 1.00 | 0.00 | 0.67 | 0.33 | 0.29 | 0.00 | 0.43 | 0.83 | 0.29 | 0.57 | 0.00 | 0.50 | 0.57 | 0.50 | 0.43 | 0.50 | 1.00 | 1.43 | 0.71 | 12.27 |
| h | 0.57 | 1.00 | 1.17 | 0.67 | 0.60 | 0.40 | 0.00 | 0.17 | 0.57 | 0.40 | 0.83 | 0.43 | 0.00 | 0.00 | 0.17 | 0.17 | 0.00 | 0.00 | 0.00 | 0.14 | 0.33 | 0.86 | 1.00 | 0.71 | 0.25 | 0.29 | 0.33 | 0.86 | 0.17 | 0.00 | 0.00 | 0.39 | 6.76 |
| k | 2.00 | 1.33 | 1.50 | 1.83 | 1.80 | 1.40 | 1.80 | 0.17 | 0.00 | 0.00 | 0.00 | 0.71 | 1.00 | 1.00 | 0.83 | 0.83 | 1.00 | 1.00 | 1.00 | 0.86 | 0.67 | 0.57 | 0.57 | 0.00 | 0.00 | 0.86 | 1.00 | 1.57 | 2.00 | 2.00 | 2.14 | 1.01 | 17.61 |
| x | 2.00 | 1.67 | 1.50 | 2.83 | 3.00 | 2.00 | 1.60 | 3.17 | 2.00 | 1.40 | 1.00 | 0.57 | 1.00 | 1.14 | 1.67 | 1.33 | 1.50 | 2.71 | 2.83 | 1.71 | 2.00 | 2.57 | 1.43 | 1.29 | 1.50 | 2.00 | 1.83 | 0.43 | 0.67 | 1.17 | 1.00 | 1.69 | 29.40 |
| o | 0.29 | 1.00 | 1.17 | 0.50 | 0.60 | 2.00 | 2.80 | 2.50 | 1.86 | 4.20 | 2.00 | 1.86 | 1.43 | 2.14 | 2.00 | 2.33 | 3.33 | 3.57 | 2.83 | 4.14 | 3.67 | 3.86 | 4.86 | 4.57 | 3.38 | 2.29 | 3.50 | 4.43 | 2.50 | 1.83 | 2.57 | 2.58 | 44.78 |
| i | 0.86 | 1.00 | 0.67 | 1.00 | 1.00 | 1.80 | 1.80 | 1.33 | 1.14 | 1.20 | 1.50 | 2.29 | 2.43 | 1.71 | 1.17 | 1.00 | 1.00 | 0.43 | 0.33 | 0.57 | 1.00 | 1.29 | 0.86 | 0.00 | 0.13 | 0.43 | 0.83 | 1.29 | 2.33 | 2.17 | 2.29 | 1.19 | 20.62 |
| c | 1.00 | 0.83 | 1.33 | 1.00 | 1.00 | 0.20 | 0.20 | 0.17 | 0.14 | 0.00 | 0.00 | 0.00 | 0.14 | 0.14 | 0.17 | 0.33 | 0.33 | 0.57 | 0.33 | 0.29 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.29 | 0.33 | 0.17 | 0.14 | 0.30 | 5.20 |
| CV | 142.86 | 137.00 | 151.67 | 133.67 | 130.20 | 126.80 | 142.20 | 87.50 | 72.71 | 83.00 | 111.33 | 128.43 | 133.86 | 118.86 | 108.83 | 101.17 | 82.50 | 84.14 | 73.50 | 78.86 | 92.33 | 119.57 | 135.00 | 93.43 | 48.00 | 70.00 | 99.67 | 143.00 | 134.33 | 147.17 | 140.29 | 111.35 | 100 |
| CVn | 75.29 | 71.50 | 84.83 | 73.33 | 72.00 | 80.60 | 92.20 | 62.83 | 71.29 | 79.60 | 76.67 | 78.29 | 75.43 | 60.43 | 49.33 | 37.17 | 9.33 | 4.43 | 0.33 | 1.29 | 8.67 | 35.00 | 52.14 | 43.29 | 27.75 | 29.86 | 53.00 | 98.14 | 84.67 | 99.83 | 91.57 | 57.42 | 51.57 |
| CVs | 67.57 | 65.50 | 66.83 | 60.33 | 58.20 | 46.20 | 50.00 | 24.67 | 1.43 | 3.40 | 34.67 | 50.14 | 58.43 | 58.43 | 59.50 | 64.00 | 73.17 | 79.71 | 73.17 | 77.57 | 83.67 | 84.57 | 82.86 | 50.14 | 20.25 | 40.14 | 46.67 | 44.86 | 49.67 | 47.33 | 48.71 | 53.93 | 48.43 |
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