In June 2024, Guernsey registered an Extreme Max Temperature value of -0.8. The average value for the same month in the last decade is 1.6 while in the first one 1981-1990 it was -0.4.
| Decade | Nr. extreme events | Mean value | Max value |
|---|---|---|---|
| 2021-Feb 2026 | 27 | 1.9 | 14.0 |
| 2011-2020 | 40 | 0.8 | 16.6 |
| 2001-2010 | 23 | 0.2 | 4.7 |
| 1991-2000 | 11 | -0.1 | 2.7 |
| 1981-1990 | 14 | -0.1 | 4.9 |