Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Thu 16 Jan 2003 | Gwynedd | 2 | 4 | Serious |
| Mon 3 Mar 2003 | Gwynedd | 3 | 1 | Slight |
| Wed 5 Mar 2003 | Gwynedd | 1 | 1 | Serious |
| Sat 8 Mar 2003 | Gwynedd | 1 | 1 | Slight |
| Wed 12 Mar 2003 | Gwynedd | 2 | 2 | Slight |
| Thu 3 Apr 2003 | Gwynedd | 1 | 1 | Slight |
| Mon 21 Apr 2003 | Gwynedd | 1 | 1 | Slight |
| Thu 15 May 2003 | Gwynedd | 3 | 2 | Slight |
| Tue 20 May 2003 | Gwynedd | 2 | 2 | Fatal |
| Thu 22 May 2003 | Gwynedd | 3 | 1 | Slight |
| Sun 25 May 2003 | Gwynedd | 4 | 1 | Slight |
| Thu 12 Jun 2003 | Gwynedd | 1 | 2 | Serious |
| Wed 18 Jun 2003 | Gwynedd | 1 | 1 | Slight |
| Thu 24 Jul 2003 | Gwynedd | 1 | 1 | Slight |
| Sun 10 Aug 2003 | Gwynedd | 1 | 1 | Slight |
| Fri 15 Aug 2003 | Gwynedd | 2 | 1 | Slight |
| Mon 18 Aug 2003 | Gwynedd | 1 | 1 | Serious |
| Fri 22 Aug 2003 | Gwynedd | 1 | 1 | Serious |
| Sun 24 Aug 2003 | Gwynedd | 1 | 2 | Slight |
| Wed 10 Sep 2003 | Gwynedd | 1 | 1 | Slight |
| Mon 29 Sep 2003 | Gwynedd | 1 | 2 | Slight |
| Mon 27 Oct 2003 | Gwynedd | 2 | 2 | Slight |
| Mon 27 Oct 2003 | Gwynedd | 1 | 1 | Slight |
| Mon 1 Dec 2003 | Gwynedd | 2 | 2 | Slight |
| Mon 29 Dec 2003 | Gwynedd | 2 | 5 | Serious |