| Month | CET | Anomaly | notes |
| January | 5.2 | 1.4 | |
| February | 6.5 | 2.7 | |
| March | 7.1 | 1.4 | |
| April | 8.7 | 0.9 | |
| May | 12.5 | 1.4 | |
| June | 17.0 | 2.9 | |
| July | 16.1 | 0.2 | |
| August | 16.4 | 0.6 | |
| September | 17.0 | 3.4 | |
| October | 12.2 | 1.7 | |
| November | 7.4 | 1.0 | |
| December | 7.1 | 2.5 |
Average for 2023: 11.13, anomaly: 1.66C
Daily CET graph
