Solar Flare Watch2003: sunspot number and solar flux
| Month | Sunspot number | F10.7 flux |
|---|---|---|
| January | 150.0 | – |
| February | 87.9 | – |
| March | 119.7 | – |
| April | 114.3 | – |
| May | 89.6 | – |
| June | 118.4 | – |
| July | 132.8 | – |
| August | 114.3 | – |
| September | 82.6 | – |
| October | 118.9 | – |
| November | 103.0 | – |
| December | 75.7 | – |
About this page
Monthly sunspot number and 10.7 cm solar radio flux in 2003, from NOAA SWPC solar-cycle data.