Statistics of sunspot activity
March, 2000
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 | 199.25 | 204.33 | 177.00 | 156.00 | 167.00 | 174.00 | 164.00 | 188.33 | 205.67 | 196.75 | 178.25 | 188.33 | 165.00 | 171.00 | 160.00 | 120.75 | 118.75 | 138.75 | 183.00 | 248.67 | 193.00 | 206.75 | 229.75 | 245.50 | 256.33 | 277.00 | 226.75 | 244.00 | 222.00 | 213.00 | 240.67 | 195.47 | 100 |
| Wn | 95.25 | 83.67 | 66.25 | 34.75 | 26.67 | 26.00 | 12.00 | 16.00 | 25.00 | 29.50 | 28.75 | 35.33 | 36.33 | 53.33 | 44.50 | 48.25 | 59.50 | 79.25 | 117.40 | 168.00 | 131.67 | 142.75 | 144.50 | 125.75 | 112.33 | 129.67 | 114.50 | 123.50 | 96.00 | 86.25 | 93.67 | 76.98 | 39.38 |
| Ws | 104.00 | 120.67 | 110.75 | 121.25 | 140.33 | 148.00 | 152.00 | 172.33 | 180.67 | 167.25 | 149.50 | 153.00 | 128.67 | 117.67 | 115.50 | 72.50 | 59.25 | 59.50 | 65.60 | 80.67 | 61.33 | 64.00 | 85.25 | 119.75 | 144.00 | 147.33 | 112.25 | 120.50 | 126.00 | 126.75 | 147.00 | 118.49 | 60.62 |
| n | 10.00 | 9.67 | 9.00 | 8.25 | 8.00 | 9.00 | 9.00 | 10.33 | 10.67 | 10.00 | 10.00 | 10.00 | 9.67 | 10.00 | 7.50 | 6.75 | 5.75 | 6.25 | 8.00 | 10.67 | 9.33 | 9.75 | 13.50 | 15.50 | 14.00 | 15.00 | 12.75 | 13.50 | 12.67 | 12.75 | 13.00 | 10.33 | 100 |
| A | 0.75 | 1.00 | 1.00 | 0.00 | 0.33 | 0.00 | 1.00 | 0.00 | 1.00 | 1.25 | 0.50 | 1.00 | 1.67 | 1.33 | 1.50 | 1.25 | 0.25 | 0.00 | 0.20 | 2.33 | 1.67 | 0.50 | 0.75 | 1.25 | 1.33 | 2.00 | 0.75 | 1.00 | 1.33 | 1.50 | 0.67 | 0.94 | 9.09 |
| B | 2.00 | 2.33 | 1.00 | 0.50 | 0.33 | 1.67 | 2.00 | 1.33 | 1.67 | 1.75 | 0.00 | 0.00 | 1.67 | 2.33 | 2.50 | 0.25 | 0.25 | 0.25 | 1.00 | 1.00 | 0.33 | 1.25 | 0.75 | 0.00 | 1.33 | 1.33 | 1.50 | 0.50 | 1.00 | 0.00 | 2.00 | 1.09 | 10.56 |
| C | 1.00 | 1.00 | 2.00 | 1.50 | 1.00 | 1.00 | 0.00 | 2.67 | 2.67 | 1.75 | 2.75 | 3.33 | 2.00 | 3.00 | 1.00 | 1.00 | 0.75 | 1.50 | 0.60 | 1.00 | 1.00 | 1.25 | 2.50 | 3.75 | 3.33 | 1.33 | 2.50 | 1.50 | 1.67 | 3.00 | 2.33 | 1.80 | 17.39 |
| D | 2.25 | 1.00 | 1.75 | 3.00 | 5.00 | 1.67 | 2.00 | 3.00 | 1.67 | 1.75 | 1.75 | 0.67 | 2.00 | 1.67 | 1.00 | 2.75 | 2.75 | 3.75 | 3.40 | 2.00 | 3.00 | 2.00 | 3.25 | 4.50 | 5.00 | 6.33 | 4.50 | 6.50 | 3.67 | 4.00 | 3.33 | 2.93 | 28.38 |
| E | 2.00 | 2.00 | 1.50 | 1.00 | 0.00 | 1.00 | 1.00 | 1.00 | 0.67 | 0.25 | 1.25 | 0.33 | 1.00 | 0.67 | 0.50 | 0.00 | 0.00 | 0.00 | 1.80 | 1.67 | 1.67 | 2.00 | 1.25 | 0.75 | 0.33 | 0.33 | 0.25 | 0.50 | 1.00 | 1.00 | 1.00 | 0.89 | 8.65 |
| F | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 0.50 | 0.25 | 0.67 | 0.00 | 0.33 | 0.50 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.10 | 0.99 |
| G | 1.50 | 1.33 | 1.00 | 1.75 | 1.00 | 1.67 | 2.00 | 1.00 | 1.67 | 1.50 | 0.75 | 1.67 | 0.67 | 0.67 | 0.00 | 0.25 | 0.00 | 0.25 | 0.20 | 1.67 | 1.00 | 1.75 | 2.50 | 1.75 | 1.33 | 0.00 | 0.25 | 0.50 | 0.67 | 0.25 | 1.00 | 1.02 | 9.85 |
| H | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.67 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.33 | 0.33 | 0.50 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.07 | 0.65 |
| I | 0.50 | 1.00 | 0.50 | 0.50 | 0.33 | 2.00 | 1.00 | 0.67 | 0.67 | 1.25 | 2.75 | 2.33 | 0.67 | 0.00 | 0.50 | 1.25 | 1.75 | 0.50 | 0.80 | 0.67 | 0.33 | 0.50 | 2.50 | 3.25 | 1.33 | 3.67 | 3.00 | 3.00 | 3.33 | 3.00 | 2.67 | 1.49 | 14.43 |
| x | 2.75 | 3.33 | 2.00 | 0.50 | 0.67 | 1.67 | 3.00 | 1.33 | 2.67 | 3.00 | 0.50 | 1.00 | 3.33 | 3.67 | 4.00 | 1.50 | 0.50 | 0.25 | 1.20 | 3.33 | 2.00 | 1.75 | 1.50 | 1.25 | 2.67 | 3.33 | 2.25 | 1.50 | 2.33 | 1.50 | 2.67 | 2.03 | 19.66 |
| r | 0.25 | 0.33 | 1.50 | 0.75 | 0.00 | 1.00 | 0.00 | 1.00 | 2.33 | 1.25 | 1.25 | 0.00 | 0.00 | 0.33 | 0.50 | 0.75 | 0.25 | 0.25 | 0.20 | 0.33 | 0.33 | 0.25 | 0.50 | 1.00 | 0.33 | 0.00 | 0.75 | 1.50 | 0.67 | 2.00 | 2.00 | 0.70 | 6.75 |
| s | 2.00 | 3.00 | 2.75 | 4.75 | 3.00 | 2.67 | 1.00 | 3.33 | 1.33 | 1.00 | 4.75 | 5.00 | 1.67 | 2.67 | 1.50 | 1.50 | 2.00 | 1.75 | 1.20 | 2.67 | 2.33 | 2.50 | 3.50 | 6.00 | 4.67 | 9.00 | 6.50 | 6.00 | 5.33 | 4.75 | 2.67 | 3.32 | 32.09 |
| a | 3.00 | 1.00 | 0.75 | 0.50 | 3.00 | 1.67 | 3.00 | 2.33 | 2.33 | 3.00 | 2.25 | 2.67 | 3.67 | 2.00 | 0.50 | 1.75 | 1.50 | 3.25 | 3.80 | 1.67 | 3.00 | 2.50 | 6.25 | 6.25 | 6.33 | 2.67 | 2.50 | 3.50 | 4.00 | 3.75 | 4.67 | 2.87 | 27.81 |
| h | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.50 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.25 | 0.00 | 0.00 | 0.67 | 0.33 | 1.50 | 0.00 | 0.25 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.13 | 1.25 |
| k | 2.00 | 2.00 | 2.00 | 1.50 | 1.33 | 2.00 | 2.00 | 2.33 | 2.00 | 1.25 | 1.00 | 1.33 | 1.00 | 1.33 | 1.00 | 1.25 | 1.25 | 0.75 | 1.60 | 2.00 | 1.33 | 1.25 | 1.75 | 0.75 | 0.00 | 0.00 | 0.75 | 1.00 | 0.33 | 0.75 | 1.00 | 1.29 | 12.44 |
| x | 1.25 | 2.00 | 1.50 | 0.50 | 0.67 | 2.00 | 2.00 | 1.33 | 1.67 | 2.50 | 3.25 | 3.33 | 2.33 | 1.33 | 2.00 | 2.50 | 2.00 | 0.50 | 1.00 | 3.33 | 2.33 | 1.50 | 3.25 | 4.75 | 2.67 | 5.67 | 3.75 | 4.00 | 4.67 | 4.50 | 3.33 | 2.50 | 24.17 |
| o | 6.75 | 5.67 | 5.50 | 6.50 | 5.00 | 5.33 | 6.00 | 8.00 | 7.67 | 6.50 | 4.75 | 5.33 | 6.00 | 7.33 | 4.50 | 3.25 | 2.00 | 4.00 | 5.00 | 5.67 | 5.00 | 5.00 | 8.50 | 9.00 | 10.00 | 7.00 | 7.00 | 6.50 | 6.67 | 6.00 | 8.00 | 6.11 | 59.15 |
| i | 0.50 | 0.00 | 0.25 | 0.25 | 0.67 | 1.67 | 1.00 | 1.00 | 1.00 | 0.75 | 1.50 | 0.67 | 0.67 | 0.33 | 0.00 | 0.75 | 1.75 | 1.00 | 1.00 | 0.33 | 1.67 | 2.75 | 1.25 | 1.25 | 1.33 | 2.33 | 1.50 | 3.00 | 1.00 | 1.50 | 1.00 | 1.09 | 10.51 |
| c | 1.50 | 2.00 | 1.75 | 1.00 | 1.67 | 0.00 | 0.00 | 0.00 | 0.33 | 0.25 | 0.50 | 0.67 | 0.67 | 1.00 | 1.00 | 0.25 | 0.00 | 0.75 | 1.00 | 1.33 | 0.33 | 0.50 | 0.50 | 0.50 | 0.00 | 0.00 | 0.50 | 0.00 | 0.33 | 0.75 | 0.67 | 0.64 | 6.17 |
| CV | 207.50 | 191.33 | 189.75 | 208.50 | 195.33 | 171.33 | 165.00 | 204.33 | 175.00 | 157.25 | 176.50 | 169.67 | 137.67 | 149.00 | 98.00 | 114.75 | 121.50 | 127.75 | 174.80 | 223.00 | 189.33 | 235.75 | 238.75 | 249.25 | 191.33 | 214.00 | 191.25 | 231.00 | 178.00 | 190.25 | 184.67 | 182.31 | 100 |
| CVn | 87.00 | 61.00 | 52.25 | 41.00 | 37.33 | 29.00 | 2.00 | 9.67 | 9.00 | 12.00 | 22.75 | 30.67 | 37.67 | 49.00 | 23.50 | 33.50 | 44.00 | 59.00 | 95.80 | 145.33 | 148.33 | 178.75 | 151.50 | 132.25 | 96.67 | 107.00 | 90.75 | 103.50 | 74.67 | 74.25 | 86.33 | 68.56 | 37.61 |
| CVs | 120.50 | 130.33 | 137.50 | 167.50 | 158.00 | 142.33 | 163.00 | 194.67 | 166.00 | 145.25 | 153.75 | 139.00 | 100.00 | 100.00 | 74.50 | 81.25 | 77.50 | 68.75 | 79.00 | 77.67 | 41.00 | 57.00 | 87.25 | 117.00 | 94.67 | 107.00 | 100.50 | 127.50 | 103.33 | 116.00 | 98.33 | 113.74 | 62.39 |
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