Temperatuur — 1999
| Mois | Ichtegem | Koekelare | Différence |
|---|---|---|---|
| Jan | 6.1 °C | 6.1 °C | +0.0 |
| Fév | 4.6 °C | 4.6 °C | +0.0 |
| Mar | 7.6 °C | 7.6 °C | +0.0 |
| Avr | 9.7 °C | 9.7 °C | +0.0 |
| Mai | 13.9 °C | 13.9 °C | +0.0 |
| Juin | 14.9 °C | 14.9 °C | +0.0 |
| Juil | 18.6 °C | 18.6 °C | +0.0 |
| Aoû |
| 17.8 °C |
| 17.8 °C |
| +0.0 |
| Sep | 17.4 °C | 17.4 °C | +0.0 |
| Oct | 11.6 °C | 11.6 °C | +0.0 |
| Nov | 7.6 °C | 7.6 °C | +0.0 |
| Déc | 5.7 °C | 5.7 °C | +0.0 |