| Month | CET | Anomaly | notes |
| January | 6.4 | 2.6 | |
| February | 6.4 | 2.6 | |
| March | 6.8 | 1.1 | |
| April | 10.5 | 2.6 | |
| May | 12.6 | 1.4 | |
| June | 15.3 | 1.2 | |
| July | 15.8 | -0.1 | |
| August | 17.7 | 1.9 | |
| September | 14.0 | 0.4 | |
| October | 10.4 | -0.1 | |
| November | 8.5 | 2.0 | |
| December | 4.9 | 0.4 |
Average for 2020: 10.78, anomaly: 1.31C
Daily CET graph
