Solar Flare Watch2023: sunspot number and solar flux
| Month | Sunspot number | F10.7 flux |
|---|---|---|
| January | 133.4 | 182.5 |
| February | 126.8 | 172.1 |
| March | 108.6 | 157.5 |
| April | 93.7 | 145.9 |
| May | 125.8 | 156.0 |
| June | 140.6 | 162.4 |
| July | 143.6 | 177.5 |
| August | 99.9 | 153.9 |
| September | 129.9 | 155.7 |
| October | 94.9 | 141.6 |
| November | 105.9 | 154.4 |
| December | 113.6 | 159.3 |
About this page
Monthly sunspot number and 10.7 cm solar radio flux in 2023, from NOAA SWPC solar-cycle data.