In June 2026, Jersey registered an Extreme Max Temperature value of 15.4. The average value for the same month in the last decade is 3.7 while in the first one 1981-1990 it was -0.2.
| Decade | Nr. extreme events | Mean value | Max value |
|---|---|---|---|
| 2021-Jun 2026 | 29 | 2.4 | 15.4 |
| 2011-2020 | 40 | 0.8 | 13.0 |
| 2001-2010 | 21 | 0.2 | 4.9 |
| 1991-2000 | 11 | -0.2 | 2.8 |
| 1981-1990 | 10 | -0.0 | 4.9 |