Solar Flare Watch2011: sunspot number and solar flux
| Month | Sunspot number | F10.7 flux |
|---|---|---|
| January | 32.2 | 83.4 |
| February | 53.5 | 94.6 |
| March | 81.1 | 124.3 |
| April | 81.7 | 112.8 |
| May | 61.8 | 95.7 |
| June | 55.5 | 95.9 |
| July | 66.7 | 94.3 |
| August | 66.0 | 101.6 |
| September | 106.4 | 135.3 |
| October | 116.1 | 137.4 |
| November | 131.8 | 153.5 |
| December | 104.7 | 141.5 |
About this page
Monthly sunspot number and 10.7 cm solar radio flux in 2011, from NOAA SWPC solar-cycle data.