Solar Flare Watch2019: sunspot number and solar flux
| Month | Sunspot number | F10.7 flux |
|---|---|---|
| January | 8.3 | 71.6 |
| February | 0.0 | 70.6 |
| March | 9.1 | 71.5 |
| April | 8.5 | 72.5 |
| May | 10.0 | 71.3 |
| June | 1.9 | 68.1 |
| July | 0.7 | 67.2 |
| August | 0.7 | 67.0 |
| September | 0.8 | 68.0 |
| October | 0.7 | 67.5 |
| November | 0.8 | 70.2 |
| December | 1.9 | 70.9 |
About this page
Monthly sunspot number and 10.7 cm solar radio flux in 2019, from NOAA SWPC solar-cycle data.