Statistics of sunspot activity
July, 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 | 78.83 | 69.50 | 75.14 | 95.00 | 98.00 | 123.00 | 110.33 | 118.00 | 92.50 | 78.86 | 87.38 | 116.00 | 87.00 | 110.71 | 116.60 | 119.83 | 141.80 | 124.67 | 132.67 | 129.80 | 145.67 | 165.83 | 124.00 | 121.17 | 114.80 | 73.17 | 57.17 | 61.67 | 103.50 | 118.40 | 152.00 | 107.84 | 100 |
| Wn | 18.17 | 2.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 4.33 | 0.00 | 4.38 | 27.25 | 30.33 | 48.14 | 62.20 | 67.00 | 65.20 | 50.00 | 52.67 | 69.40 | 69.67 | 81.50 | 64.60 | 63.33 | 58.00 | 40.50 | 28.33 | 4.33 | 3.00 | 19.00 | 22.17 | 30.84 | 28.60 |
| Ws | 60.67 | 67.00 | 75.14 | 95.00 | 98.00 | 123.00 | 110.33 | 118.00 | 88.17 | 78.86 | 83.00 | 88.75 | 56.67 | 62.57 | 54.40 | 52.83 | 76.60 | 74.67 | 80.00 | 60.40 | 76.00 | 84.33 | 59.40 | 57.83 | 56.80 | 32.67 | 28.83 | 57.33 | 100.50 | 99.40 | 129.83 | 77.00 | 71.40 |
| n | 4.33 | 4.00 | 4.14 | 5.33 | 4.80 | 5.60 | 5.67 | 6.00 | 4.67 | 4.14 | 5.25 | 7.25 | 6.00 | 7.14 | 7.40 | 7.67 | 8.40 | 8.50 | 9.00 | 7.80 | 8.17 | 8.67 | 7.20 | 6.50 | 6.00 | 4.17 | 4.50 | 4.00 | 6.00 | 5.40 | 6.67 | 6.14 | 100 |
| A | 0.83 | 1.17 | 0.14 | 0.00 | 0.60 | 0.20 | 0.67 | 0.67 | 0.00 | 0.00 | 0.25 | 1.50 | 0.00 | 0.43 | 0.80 | 0.67 | 0.20 | 1.67 | 2.33 | 1.80 | 1.50 | 1.00 | 1.00 | 0.50 | 1.40 | 0.17 | 0.33 | 1.17 | 0.75 | 0.00 | 0.83 | 0.73 | 11.86 |
| B | 0.17 | 0.33 | 0.71 | 1.33 | 1.00 | 1.20 | 1.00 | 1.33 | 1.33 | 1.00 | 0.75 | 1.75 | 0.00 | 0.43 | 0.40 | 1.50 | 2.20 | 1.33 | 2.83 | 3.20 | 1.50 | 1.50 | 0.80 | 0.17 | 0.40 | 0.67 | 0.17 | 0.00 | 2.25 | 1.00 | 1.17 | 1.08 | 17.56 |
| C | 0.83 | 0.83 | 1.43 | 1.33 | 0.80 | 1.60 | 1.00 | 2.00 | 2.00 | 1.86 | 1.13 | 1.00 | 2.33 | 3.86 | 3.20 | 2.83 | 3.40 | 2.83 | 1.83 | 2.20 | 2.83 | 2.83 | 1.20 | 0.67 | 0.20 | 0.17 | 0.33 | 0.17 | 1.00 | 1.80 | 2.83 | 1.69 | 27.49 |
| D | 0.83 | 0.67 | 0.43 | 0.67 | 0.40 | 0.20 | 0.33 | 0.00 | 0.50 | 0.14 | 0.38 | 0.75 | 1.00 | 0.71 | 1.40 | 1.50 | 1.00 | 1.00 | 1.00 | 0.40 | 1.17 | 2.17 | 2.20 | 2.33 | 1.40 | 0.83 | 1.00 | 0.33 | 0.25 | 1.40 | 0.67 | 0.87 | 14.22 |
| E | 0.00 | 0.00 | 0.29 | 0.67 | 0.80 | 1.00 | 0.50 | 0.33 | 0.00 | 0.00 | 0.25 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.17 | 0.00 | 0.50 | 0.60 | 0.33 | 0.00 | 0.50 | 0.25 | 0.00 | 0.00 | 0.22 | 3.60 |
| 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 | 0.50 | 0.80 | 1.00 | 0.07 | 1.21 |
| G | 1.17 | 0.83 | 1.00 | 1.00 | 0.40 | 0.40 | 0.67 | 0.67 | 0.50 | 0.86 | 0.75 | 0.50 | 0.67 | 0.00 | 0.00 | 0.00 | 0.20 | 0.17 | 0.00 | 0.00 | 0.17 | 0.00 | 1.00 | 0.50 | 0.60 | 1.00 | 0.83 | 0.33 | 0.25 | 0.20 | 0.00 | 0.47 | 7.70 |
| H | 0.00 | 0.00 | 0.00 | 0.33 | 0.60 | 1.00 | 1.00 | 0.33 | 0.17 | 0.14 | 0.25 | 0.50 | 1.00 | 0.57 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.17 | 0.00 | 0.00 | 0.17 | 0.22 | 3.54 |
| I | 0.50 | 0.17 | 0.14 | 0.00 | 0.20 | 0.00 | 0.50 | 0.67 | 0.17 | 0.14 | 1.50 | 0.75 | 1.00 | 1.14 | 1.60 | 1.17 | 1.40 | 1.17 | 1.00 | 0.20 | 0.83 | 1.00 | 1.00 | 1.83 | 1.40 | 1.00 | 1.67 | 1.33 | 0.75 | 0.20 | 0.00 | 0.79 | 12.83 |
| x | 1.00 | 1.50 | 0.86 | 1.33 | 1.60 | 1.40 | 1.67 | 2.00 | 1.33 | 1.00 | 1.00 | 3.25 | 0.00 | 0.86 | 1.20 | 2.17 | 2.40 | 3.00 | 5.17 | 5.00 | 3.00 | 2.50 | 1.80 | 0.67 | 1.80 | 0.83 | 0.50 | 1.17 | 3.00 | 1.00 | 2.00 | 1.81 | 29.42 |
| r | 0.17 | 0.00 | 0.14 | 0.00 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.13 | 0.25 | 0.00 | 0.14 | 0.00 | 0.17 | 0.60 | 0.83 | 1.33 | 1.40 | 0.67 | 0.50 | 0.00 | 0.50 | 0.00 | 0.17 | 0.50 | 0.33 | 0.25 | 0.40 | 0.50 | 0.30 | 4.93 |
| s | 0.83 | 1.33 | 1.71 | 1.33 | 1.20 | 2.40 | 1.33 | 1.00 | 0.50 | 0.43 | 1.75 | 1.00 | 1.00 | 2.14 | 4.00 | 4.50 | 4.00 | 2.50 | 0.83 | 0.60 | 1.67 | 3.17 | 3.00 | 2.50 | 1.80 | 1.17 | 1.67 | 1.17 | 0.75 | 1.80 | 1.50 | 1.76 | 28.67 |
| a | 1.67 | 1.00 | 0.57 | 2.00 | 0.60 | 0.60 | 1.17 | 0.67 | 0.67 | 0.71 | 0.50 | 0.75 | 2.33 | 2.86 | 1.60 | 0.83 | 1.40 | 1.67 | 1.67 | 0.60 | 2.50 | 2.00 | 2.00 | 2.33 | 1.20 | 0.50 | 1.33 | 0.17 | 1.00 | 1.20 | 1.33 | 1.27 | 20.71 |
| h | 0.33 | 0.17 | 0.14 | 0.00 | 0.80 | 1.20 | 1.17 | 1.00 | 0.50 | 0.43 | 1.00 | 0.75 | 1.00 | 0.29 | 0.00 | 0.00 | 0.00 | 0.33 | 0.00 | 0.20 | 0.00 | 0.00 | 0.00 | 0.33 | 0.40 | 0.50 | 0.00 | 0.17 | 0.00 | 0.00 | 0.67 | 0.37 | 5.97 |
| k | 0.33 | 0.00 | 0.71 | 0.67 | 0.20 | 0.00 | 0.33 | 1.33 | 1.67 | 1.57 | 0.88 | 1.25 | 1.67 | 0.86 | 0.60 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.33 | 0.50 | 0.40 | 0.17 | 0.80 | 1.00 | 0.50 | 1.00 | 1.00 | 1.00 | 0.67 | 0.63 | 10.30 |
| x | 1.33 | 1.33 | 0.29 | 0.33 | 1.40 | 1.20 | 2.17 | 1.67 | 0.33 | 0.29 | 2.00 | 2.75 | 2.00 | 2.14 | 2.40 | 1.83 | 1.60 | 3.17 | 3.33 | 2.00 | 2.33 | 2.00 | 2.00 | 2.33 | 2.80 | 1.17 | 2.17 | 2.67 | 1.50 | 0.20 | 1.00 | 1.73 | 28.23 |
| o | 3.00 | 2.67 | 3.14 | 4.33 | 2.40 | 3.20 | 2.67 | 3.67 | 4.17 | 3.86 | 3.00 | 3.50 | 4.00 | 4.86 | 4.80 | 5.83 | 5.60 | 4.83 | 4.83 | 5.00 | 4.67 | 5.83 | 5.00 | 2.67 | 2.00 | 2.50 | 2.33 | 0.83 | 3.75 | 4.40 | 4.50 | 3.80 | 61.90 |
| i | 0.00 | 0.00 | 0.71 | 0.67 | 1.00 | 1.20 | 0.83 | 0.67 | 0.17 | 0.00 | 0.25 | 1.00 | 0.00 | 0.14 | 0.20 | 0.00 | 1.20 | 0.50 | 0.83 | 0.80 | 1.17 | 0.83 | 0.20 | 1.50 | 1.20 | 0.50 | 0.00 | 0.50 | 0.75 | 0.80 | 1.00 | 0.60 | 9.78 |
| 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 | 0.17 | 0.01 | 0.09 |
| CV | 73.33 | 49.50 | 78.00 | 87.67 | 83.60 | 107.40 | 107.67 | 121.00 | 104.17 | 97.43 | 112.00 | 116.50 | 148.00 | 99.86 | 96.80 | 79.00 | 79.00 | 83.33 | 47.17 | 38.60 | 76.83 | 104.33 | 103.40 | 111.33 | 106.20 | 95.83 | 68.83 | 69.50 | 72.25 | 96.60 | 105.33 | 90.98 | 100 |
| CVn | 15.83 | 3.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 0.00 | 0.63 | 5.75 | 29.67 | 38.29 | 40.80 | 47.33 | 43.20 | 38.00 | 22.83 | 26.20 | 45.33 | 56.00 | 57.80 | 68.83 | 53.00 | 40.33 | 32.17 | 3.00 | 0.25 | 12.20 | 12.00 | 22.36 | 24.58 |
| CVs | 57.50 | 46.33 | 78.00 | 87.67 | 83.60 | 107.40 | 107.67 | 121.00 | 103.50 | 97.43 | 111.38 | 110.75 | 118.33 | 61.57 | 56.00 | 31.67 | 35.80 | 45.33 | 24.33 | 12.40 | 31.50 | 48.33 | 45.60 | 42.50 | 53.20 | 55.50 | 36.67 | 66.50 | 72.00 | 84.40 | 93.33 | 68.62 | 75.42 |
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