Statistics of sunspot activity
November, 1991
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 | Average | % |
| W | 263.67 | 227.43 | 151.14 | 128.83 | 154.29 | 173.33 | 185.29 | 196.83 | 179.00 | 197.00 | 179.83 | 162.67 | 162.00 | 186.00 | 145.20 | 108.80 | 100.67 | 103.80 | 136.00 | 126.83 | 114.00 | 117.50 | 111.33 | 145.67 | 131.83 | 123.20 | 148.50 | 157.50 | 149.00 | 109.50 | 152.55 | 100 |
| Wn | 75.17 | 61.86 | 48.00 | 48.17 | 47.00 | 31.33 | 38.43 | 75.67 | 73.17 | 109.00 | 119.67 | 112.33 | 101.20 | 102.50 | 79.80 | 61.60 | 34.17 | 25.80 | 22.00 | 26.83 | 35.00 | 40.00 | 27.67 | 28.50 | 19.17 | 20.60 | 32.00 | 44.00 | 37.67 | 30.00 | 53.61 | 35.14 |
| Ws | 188.50 | 165.57 | 103.14 | 80.67 | 107.29 | 142.00 | 146.86 | 121.17 | 105.83 | 88.00 | 60.17 | 50.33 | 60.80 | 83.50 | 65.40 | 47.20 | 66.50 | 78.00 | 114.00 | 100.00 | 79.00 | 77.50 | 83.67 | 117.17 | 112.67 | 102.60 | 116.50 | 113.50 | 111.33 | 79.50 | 98.95 | 64.86 |
| n | 10.83 | 10.43 | 9.43 | 8.17 | 9.71 | 10.33 | 9.43 | 10.33 | 9.33 | 9.75 | 7.50 | 7.00 | 6.20 | 7.00 | 5.80 | 5.60 | 5.17 | 6.40 | 9.00 | 8.50 | 8.17 | 9.17 | 8.33 | 10.50 | 9.50 | 7.00 | 8.33 | 8.50 | 8.67 | 6.33 | 8.35 | 100 |
| A | 2.17 | 1.86 | 1.14 | 1.33 | 1.71 | 1.50 | 0.71 | 1.33 | 1.50 | 1.00 | 1.00 | 1.00 | 0.60 | 1.50 | 0.40 | 0.80 | 1.17 | 1.20 | 3.60 | 1.50 | 1.33 | 2.17 | 1.67 | 2.33 | 3.67 | 2.00 | 1.33 | 1.67 | 1.67 | 1.50 | 1.55 | 18.51 |
| B | 1.00 | 0.43 | 0.57 | 1.67 | 1.86 | 3.00 | 3.43 | 1.50 | 1.50 | 2.25 | 0.83 | 2.00 | 1.60 | 2.00 | 1.40 | 1.00 | 0.17 | 1.20 | 1.40 | 1.83 | 1.33 | 2.00 | 2.67 | 2.83 | 3.00 | 0.80 | 1.50 | 0.67 | 1.50 | 0.50 | 1.58 | 18.94 |
| C | 1.83 | 2.00 | 2.43 | 1.67 | 1.14 | 1.00 | 0.57 | 0.67 | 0.50 | 0.50 | 0.83 | 0.00 | 0.60 | 0.00 | 1.40 | 1.40 | 0.83 | 0.20 | 0.80 | 2.33 | 3.50 | 3.00 | 1.67 | 2.17 | 0.50 | 1.00 | 0.83 | 1.33 | 1.33 | 1.17 | 1.24 | 14.86 |
| D | 2.67 | 2.57 | 1.71 | 1.83 | 1.86 | 1.83 | 1.29 | 2.83 | 2.00 | 3.50 | 3.33 | 3.33 | 2.20 | 1.50 | 0.60 | 0.20 | 0.83 | 2.20 | 3.20 | 2.33 | 1.67 | 1.33 | 1.00 | 1.67 | 1.83 | 2.60 | 3.67 | 3.83 | 3.17 | 2.67 | 2.18 | 26.06 |
| E | 0.33 | 1.00 | 0.57 | 0.00 | 0.29 | 0.67 | 0.71 | 0.50 | 0.50 | 0.00 | 0.33 | 0.67 | 0.60 | 1.00 | 0.80 | 0.40 | 0.50 | 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 | 0.30 | 3.61 |
| F | 1.50 | 1.00 | 0.29 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.17 | 0.25 | 0.17 | 0.00 | 0.00 | 0.00 | 0.60 | 0.40 | 0.33 | 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 | 0.16 | 1.94 |
| G | 1.33 | 1.00 | 0.71 | 0.17 | 0.57 | 0.33 | 1.29 | 1.33 | 1.17 | 1.00 | 0.00 | 0.00 | 0.60 | 1.00 | 0.60 | 0.60 | 0.33 | 0.80 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.43 | 5.13 |
| H | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.50 | 0.25 | 0.33 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.06 | 0.71 |
| I | 0.00 | 0.57 | 2.00 | 1.50 | 2.29 | 2.00 | 1.43 | 1.50 | 1.50 | 1.00 | 0.67 | 0.00 | 0.00 | 0.00 | 0.00 | 0.80 | 1.00 | 0.60 | 0.00 | 0.33 | 0.33 | 0.67 | 1.33 | 1.50 | 0.50 | 0.60 | 1.00 | 1.00 | 1.00 | 0.50 | 0.85 | 10.23 |
| x | 3.17 | 2.29 | 1.71 | 3.00 | 3.57 | 4.50 | 4.14 | 2.83 | 3.00 | 3.25 | 1.83 | 3.00 | 2.20 | 3.50 | 1.80 | 1.80 | 1.33 | 2.40 | 5.00 | 3.33 | 2.67 | 4.17 | 4.33 | 5.17 | 6.67 | 2.80 | 2.83 | 2.33 | 3.17 | 2.00 | 3.13 | 37.46 |
| r | 0.00 | 0.29 | 0.57 | 0.00 | 0.14 | 0.17 | 0.00 | 0.17 | 0.33 | 0.50 | 0.33 | 0.00 | 0.00 | 0.50 | 0.00 | 0.60 | 0.33 | 0.20 | 0.60 | 1.00 | 0.50 | 0.50 | 1.00 | 1.67 | 0.17 | 0.20 | 0.17 | 0.17 | 0.17 | 0.17 | 0.35 | 4.17 |
| s | 1.33 | 2.14 | 1.71 | 2.50 | 3.71 | 3.33 | 3.00 | 2.17 | 1.50 | 1.00 | 1.00 | 0.67 | 0.60 | 0.50 | 0.60 | 0.80 | 1.50 | 1.20 | 1.80 | 1.33 | 2.67 | 3.00 | 1.67 | 2.67 | 2.00 | 2.40 | 1.17 | 3.67 | 2.83 | 1.33 | 1.86 | 22.28 |
| a | 4.33 | 4.43 | 4.57 | 2.67 | 1.86 | 1.17 | 1.29 | 3.50 | 2.17 | 2.25 | 2.00 | 0.67 | 1.40 | 0.50 | 1.60 | 1.40 | 1.50 | 1.60 | 1.40 | 2.83 | 2.33 | 1.50 | 1.33 | 1.00 | 0.67 | 1.60 | 4.00 | 1.67 | 1.50 | 1.83 | 2.02 | 24.18 |
| h | 0.00 | 0.00 | 0.14 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.60 | 0.20 | 0.00 | 0.40 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.06 | 0.70 |
| k | 2.00 | 1.29 | 0.71 | 0.00 | 0.43 | 1.00 | 1.00 | 1.67 | 2.33 | 2.50 | 2.33 | 2.67 | 2.00 | 2.00 | 1.20 | 0.80 | 0.50 | 0.60 | 0.20 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.67 | 1.00 | 1.00 | 0.94 | 11.21 |
| x | 2.17 | 2.43 | 3.14 | 2.83 | 4.00 | 3.50 | 2.14 | 3.33 | 3.50 | 2.25 | 2.00 | 1.00 | 0.60 | 1.50 | 0.40 | 1.60 | 2.17 | 2.00 | 3.60 | 1.83 | 1.67 | 2.83 | 3.00 | 3.83 | 4.17 | 2.60 | 2.33 | 2.67 | 2.67 | 2.00 | 2.46 | 29.46 |
| o | 6.17 | 6.00 | 5.43 | 4.83 | 4.71 | 5.67 | 6.43 | 5.17 | 4.00 | 5.50 | 3.67 | 4.00 | 3.40 | 3.50 | 3.80 | 3.20 | 2.00 | 4.20 | 5.00 | 6.50 | 6.50 | 6.33 | 5.33 | 6.50 | 4.50 | 2.40 | 4.67 | 5.33 | 4.83 | 3.17 | 4.76 | 57.00 |
| i | 1.83 | 1.57 | 0.71 | 0.50 | 0.86 | 1.00 | 0.71 | 1.83 | 1.67 | 2.00 | 1.67 | 1.67 | 2.00 | 2.00 | 1.40 | 0.80 | 1.00 | 0.20 | 0.40 | 0.17 | 0.00 | 0.00 | 0.00 | 0.17 | 0.83 | 2.00 | 1.33 | 0.50 | 1.00 | 1.00 | 1.03 | 12.31 |
| c | 0.67 | 0.43 | 0.14 | 0.00 | 0.14 | 0.17 | 0.14 | 0.00 | 0.17 | 0.00 | 0.17 | 0.33 | 0.20 | 0.00 | 0.20 | 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 | 0.17 | 0.10 | 1.23 |
| CV | 202.83 | 182.00 | 129.57 | 77.33 | 112.14 | 130.00 | 127.57 | 176.17 | 168.33 | 188.25 | 160.67 | 158.67 | 134.20 | 128.00 | 121.60 | 80.80 | 76.33 | 102.00 | 88.20 | 75.83 | 75.50 | 70.17 | 50.67 | 72.67 | 63.67 | 80.00 | 100.17 | 126.50 | 124.50 | 103.17 | 116.25 | 100 |
| CVn | 63.50 | 51.71 | 41.00 | 34.33 | 35.43 | 28.17 | 30.00 | 52.67 | 55.67 | 93.50 | 91.50 | 106.67 | 85.20 | 79.00 | 76.00 | 42.60 | 12.33 | 16.00 | 2.40 | 10.00 | 25.83 | 21.50 | 11.67 | 10.83 | 4.17 | 2.20 | 15.83 | 36.17 | 26.83 | 19.67 | 39.41 | 33.90 |
| CVs | 139.33 | 130.29 | 88.57 | 43.00 | 76.71 | 101.83 | 97.57 | 123.50 | 112.67 | 94.75 | 69.17 | 52.00 | 49.00 | 49.00 | 45.60 | 38.20 | 64.00 | 86.00 | 85.80 | 65.83 | 49.67 | 48.67 | 39.00 | 61.83 | 59.50 | 77.80 | 84.33 | 90.33 | 97.67 | 83.50 | 76.84 | 66.10 |
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