| Month | CET | Anomaly | notes |
| January | 4.1 | 0.3 | |
| February | 7.0 | 3.2 | |
| March | 8.0 | 2.3 | |
| April | 9.3 | 1.4 | |
| May | 11.2 | 0.1 | |
| June | 14.3 | 0.2 | |
| July | 17.6 | 1.6 | |
| August | 17.2 | 1.4 | |
| September | 14.3 | 0.8 | |
| October | 9.9 | -0.6 | |
| November | 6.2 | -0.2 | |
| December | 5.8 | 1.3 |
Average for 2019: 10.42, anomaly: 0.96C
Daily CET graph
