Statistics of sunspot activity
January, 1992
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 | 240.83 | 196.43 | 239.20 | 234.50 | 243.00 | 249.20 | 290.40 | 295.75 | 248.00 | 218.25 | 176.60 | 173.00 | 176.80 | 132.83 | 108.33 | 123.00 | 109.00 | 97.57 | 128.00 | 148.83 | 177.00 | 174.43 | 155.33 | 154.20 | 157.33 | 190.33 | 236.88 | 253.33 | 299.00 | 327.88 | 342.17 | 203.14 | 100 |
| Wn | 4.67 | 15.00 | 32.60 | 51.33 | 57.40 | 76.40 | 133.40 | 141.25 | 118.50 | 113.75 | 71.20 | 70.50 | 62.60 | 40.33 | 23.33 | 22.00 | 28.40 | 24.43 | 63.80 | 73.33 | 69.00 | 65.43 | 56.67 | 55.40 | 58.33 | 55.67 | 80.38 | 87.83 | 107.67 | 103.75 | 103.50 | 66.70 | 32.84 |
| Ws | 236.17 | 181.43 | 206.60 | 183.17 | 185.60 | 172.80 | 157.00 | 154.50 | 129.50 | 104.50 | 105.40 | 102.50 | 114.20 | 92.50 | 85.00 | 101.00 | 80.60 | 73.14 | 64.20 | 75.50 | 108.00 | 109.00 | 98.67 | 98.80 | 99.00 | 134.67 | 156.50 | 165.50 | 191.33 | 224.13 | 238.67 | 136.44 | 67.16 |
| n | 7.67 | 6.86 | 9.00 | 10.33 | 10.60 | 10.60 | 12.20 | 12.50 | 11.25 | 11.50 | 10.40 | 10.75 | 11.00 | 8.50 | 6.33 | 7.50 | 6.20 | 6.71 | 8.60 | 9.67 | 11.33 | 10.57 | 9.33 | 10.20 | 10.00 | 10.83 | 12.88 | 14.17 | 14.33 | 16.38 | 16.17 | 10.46 | 100 |
| A | 0.67 | 0.71 | 0.80 | 1.67 | 1.40 | 1.20 | 1.20 | 1.50 | 0.50 | 1.25 | 1.00 | 1.50 | 2.00 | 1.00 | 0.33 | 2.00 | 1.40 | 1.14 | 1.40 | 2.50 | 3.33 | 2.29 | 1.00 | 1.80 | 0.50 | 2.33 | 1.88 | 1.83 | 1.83 | 3.75 | 3.00 | 1.57 | 15.02 |
| B | 0.33 | 0.29 | 0.40 | 0.00 | 0.00 | 1.40 | 2.40 | 2.25 | 2.25 | 1.25 | 0.60 | 1.00 | 1.00 | 1.50 | 1.00 | 1.50 | 1.60 | 2.14 | 2.20 | 1.67 | 1.83 | 1.71 | 2.00 | 1.60 | 0.67 | 2.17 | 2.88 | 2.00 | 1.33 | 1.00 | 1.33 | 1.40 | 13.35 |
| C | 0.33 | 0.14 | 0.40 | 1.17 | 1.80 | 2.60 | 2.00 | 2.00 | 2.00 | 1.50 | 2.20 | 2.25 | 2.80 | 1.17 | 2.33 | 2.00 | 1.60 | 1.43 | 1.00 | 0.67 | 1.17 | 2.43 | 3.50 | 4.60 | 3.83 | 2.33 | 2.00 | 3.00 | 3.17 | 4.13 | 3.83 | 2.11 | 20.16 |
| D | 1.17 | 0.00 | 0.60 | 2.00 | 0.80 | 0.60 | 1.80 | 2.00 | 1.25 | 2.50 | 2.00 | 2.75 | 2.00 | 2.50 | 0.83 | 0.50 | 1.60 | 0.71 | 2.20 | 1.83 | 1.33 | 1.71 | 1.17 | 0.40 | 2.17 | 1.17 | 1.63 | 2.33 | 4.17 | 2.63 | 2.00 | 1.62 | 15.52 |
| E | 1.00 | 1.43 | 1.80 | 1.67 | 1.80 | 1.40 | 1.00 | 0.50 | 0.50 | 0.00 | 0.00 | 0.50 | 0.20 | 0.17 | 0.17 | 0.00 | 0.00 | 0.00 | 0.20 | 0.17 | 0.17 | 0.14 | 0.00 | 0.00 | 0.00 | 0.17 | 0.88 | 1.00 | 0.67 | 1.00 | 2.00 | 0.60 | 5.71 |
| F | 0.83 | 0.86 | 0.20 | 0.50 | 0.60 | 0.40 | 1.00 | 1.00 | 1.00 | 1.00 | 0.60 | 0.25 | 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 | 0.25 | 0.33 | 0.33 | 0.25 | 0.83 | 0.33 | 3.16 |
| G | 3.33 | 2.86 | 3.00 | 1.83 | 1.00 | 0.80 | 1.40 | 2.00 | 2.50 | 2.75 | 1.60 | 1.25 | 1.40 | 0.67 | 1.33 | 0.50 | 0.00 | 0.00 | 0.40 | 0.33 | 0.83 | 0.71 | 0.00 | 0.00 | 0.83 | 1.67 | 1.00 | 0.67 | 1.00 | 1.00 | 1.00 | 1.22 | 11.61 |
| H | 0.00 | 0.57 | 0.80 | 0.00 | 0.40 | 0.20 | 0.00 | 0.00 | 0.00 | 0.25 | 0.40 | 0.00 | 0.40 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.80 | 0.50 | 0.83 | 0.29 | 0.00 | 0.20 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.19 | 1.84 |
| I | 0.00 | 0.00 | 1.00 | 1.50 | 2.80 | 2.00 | 1.40 | 1.25 | 1.25 | 1.00 | 2.00 | 1.25 | 1.20 | 1.33 | 0.33 | 1.00 | 0.00 | 1.29 | 0.40 | 2.00 | 1.83 | 1.29 | 1.67 | 1.60 | 2.00 | 1.00 | 2.38 | 2.83 | 1.83 | 2.63 | 2.17 | 1.43 | 13.63 |
| x | 1.00 | 1.00 | 1.20 | 1.67 | 1.40 | 2.60 | 3.60 | 3.75 | 2.75 | 2.50 | 1.60 | 2.50 | 3.00 | 2.50 | 1.33 | 3.50 | 3.00 | 3.29 | 3.60 | 4.17 | 5.17 | 4.00 | 3.00 | 3.40 | 1.17 | 4.50 | 4.75 | 3.83 | 3.17 | 4.75 | 4.33 | 2.97 | 28.37 |
| r | 0.17 | 0.00 | 0.00 | 0.00 | 0.80 | 1.40 | 0.40 | 0.25 | 0.25 | 0.00 | 0.00 | 0.25 | 0.40 | 0.17 | 0.00 | 0.50 | 0.80 | 0.14 | 0.20 | 0.33 | 0.33 | 0.43 | 0.33 | 0.60 | 0.67 | 0.17 | 0.38 | 1.33 | 0.50 | 0.00 | 0.50 | 0.36 | 3.48 |
| s | 0.67 | 0.29 | 0.60 | 2.00 | 2.40 | 2.00 | 1.80 | 1.75 | 0.50 | 0.75 | 2.80 | 2.25 | 2.00 | 1.00 | 1.17 | 1.50 | 0.40 | 1.43 | 2.00 | 2.00 | 1.67 | 2.29 | 1.67 | 1.60 | 3.33 | 2.00 | 2.00 | 3.50 | 2.33 | 3.63 | 3.17 | 1.82 | 17.41 |
| a | 4.50 | 3.71 | 4.40 | 3.50 | 3.20 | 1.80 | 3.20 | 3.75 | 4.75 | 5.75 | 4.80 | 5.25 | 4.40 | 4.00 | 3.17 | 1.00 | 1.00 | 1.29 | 2.00 | 2.50 | 2.50 | 2.43 | 2.67 | 2.60 | 2.33 | 1.33 | 3.75 | 3.50 | 6.17 | 5.75 | 4.50 | 3.40 | 32.52 |
| h | 0.00 | 0.43 | 0.60 | 0.33 | 0.20 | 0.20 | 0.60 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.40 | 0.43 | 0.80 | 0.50 | 0.33 | 0.29 | 0.50 | 0.60 | 1.17 | 0.67 | 0.50 | 0.83 | 0.83 | 0.75 | 1.33 | 0.43 | 4.10 |
| k | 1.33 | 1.43 | 2.20 | 2.83 | 2.60 | 2.60 | 2.60 | 2.50 | 3.00 | 2.50 | 1.20 | 0.50 | 1.20 | 0.83 | 0.67 | 0.50 | 0.60 | 0.14 | 0.00 | 0.17 | 1.33 | 1.14 | 1.17 | 1.40 | 1.33 | 2.17 | 1.50 | 1.17 | 1.33 | 1.50 | 2.33 | 1.48 | 14.11 |
| x | 0.67 | 1.29 | 2.60 | 3.17 | 4.60 | 3.40 | 2.60 | 2.75 | 1.75 | 2.50 | 3.40 | 2.75 | 3.60 | 2.50 | 0.67 | 3.00 | 1.40 | 2.43 | 2.60 | 5.00 | 6.00 | 3.86 | 2.67 | 3.60 | 2.50 | 3.33 | 4.25 | 4.83 | 3.67 | 6.38 | 5.17 | 3.19 | 30.49 |
| o | 5.17 | 3.29 | 4.40 | 4.67 | 3.60 | 5.20 | 7.40 | 8.25 | 8.00 | 8.00 | 6.20 | 7.00 | 7.20 | 5.83 | 5.33 | 4.50 | 4.80 | 4.14 | 5.20 | 4.00 | 4.17 | 5.86 | 6.67 | 6.60 | 7.17 | 7.33 | 7.13 | 7.00 | 8.50 | 7.75 | 7.67 | 6.06 | 57.96 |
| i | 1.67 | 2.00 | 2.00 | 2.17 | 2.00 | 1.00 | 1.40 | 1.00 | 1.50 | 1.00 | 0.80 | 1.00 | 0.20 | 0.17 | 0.33 | 0.00 | 0.00 | 0.14 | 0.80 | 0.50 | 1.17 | 0.86 | 0.00 | 0.00 | 0.33 | 0.17 | 1.50 | 2.17 | 1.83 | 2.25 | 3.17 | 1.07 | 10.21 |
| c | 0.17 | 0.29 | 0.00 | 0.33 | 0.40 | 1.00 | 0.80 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.17 | 0.33 | 0.00 | 0.17 | 0.14 | 1.33 |
| CV | 174.33 | 171.71 | 215.40 | 238.33 | 213.80 | 194.20 | 238.20 | 234.25 | 218.00 | 217.75 | 168.80 | 149.00 | 149.40 | 113.00 | 90.67 | 77.50 | 72.40 | 62.14 | 113.00 | 104.33 | 136.00 | 134.71 | 119.33 | 126.20 | 188.83 | 177.17 | 176.50 | 208.83 | 240.00 | 232.88 | 286.33 | 169.13 | 100 |
| CVn | 0.50 | 26.86 | 55.40 | 61.83 | 58.40 | 68.60 | 103.20 | 109.00 | 106.50 | 98.75 | 83.00 | 65.50 | 66.20 | 43.50 | 19.33 | 10.50 | 11.60 | 13.57 | 43.40 | 41.67 | 60.83 | 65.00 | 55.67 | 58.20 | 80.50 | 81.83 | 83.38 | 104.00 | 97.50 | 89.63 | 88.00 | 62.96 | 37.23 |
| CVs | 173.83 | 144.86 | 160.00 | 176.50 | 155.40 | 125.60 | 135.00 | 125.25 | 111.50 | 119.00 | 85.80 | 83.50 | 83.20 | 69.50 | 71.33 | 67.00 | 60.80 | 48.57 | 69.60 | 62.67 | 75.17 | 69.71 | 63.67 | 68.00 | 108.33 | 95.33 | 93.13 | 104.83 | 142.50 | 143.25 | 198.33 | 106.17 | 62.77 |
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