Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Sat 4 Jan 2003 | Gwynedd | 2 | 4 | Serious |
| Thu 16 Jan 2003 | Gwynedd | 2 | 2 | Slight |
| Fri 24 Jan 2003 | Gwynedd | 1 | 1 | Slight |
| Sun 16 Feb 2003 | Gwynedd | 1 | 1 | Slight |
| Sat 1 Mar 2003 | Gwynedd | 2 | 1 | Slight |
| Sun 13 Apr 2003 | Gwynedd | 2 | 1 | Slight |
| Tue 15 Apr 2003 | Gwynedd | 2 | 1 | Slight |
| Sun 1 Jun 2003 | Gwynedd | 2 | 1 | Slight |
| Mon 2 Jun 2003 | Gwynedd | 2 | 2 | Slight |
| Thu 5 Jun 2003 | Gwynedd | 1 | 1 | Slight |
| Tue 15 Jul 2003 | Gwynedd | 3 | 2 | Slight |
| Thu 17 Jul 2003 | Gwynedd | 2 | 2 | Slight |
| Fri 18 Jul 2003 | Gwynedd | 2 | 2 | Slight |
| Sun 20 Jul 2003 | Gwynedd | 2 | 1 | Serious |
| Tue 29 Jul 2003 | Gwynedd | 3 | 2 | Slight |
| Wed 8 Oct 2003 | Gwynedd | 1 | 1 | Slight |
| Wed 29 Oct 2003 | Gwynedd | 2 | 1 | Slight |
| Mon 8 Dec 2003 | Gwynedd | 2 | 2 | Slight |
| Sun 14 Dec 2003 | Gwynedd | 1 | 1 | Slight |