Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Wed 1 Jan 2003 | Isle of Anglesey | 1 | 1 | Slight |
| Thu 2 Jan 2003 | Isle of Anglesey | 2 | 2 | Slight |
| Sat 11 Jan 2003 | Isle of Anglesey | 3 | 2 | Slight |
| Mon 13 Jan 2003 | Isle of Anglesey | 2 | 2 | Slight |
| Tue 28 Jan 2003 | Isle of Anglesey | 2 | 1 | Slight |
| Mon 17 Feb 2003 | Isle of Anglesey | 2 | 1 | Slight |
| Mon 17 Feb 2003 | Isle of Anglesey | 2 | 1 | Slight |
| Tue 18 Feb 2003 | Isle of Anglesey | 2 | 1 | Slight |
| Tue 4 Mar 2003 | Isle of Anglesey | 2 | 2 | Slight |
| Mon 10 Mar 2003 | Isle of Anglesey | 1 | 1 | Slight |
| Wed 12 Mar 2003 | Isle of Anglesey | 2 | 1 | Slight |
| Wed 12 Mar 2003 | Isle of Anglesey | 3 | 2 | Slight |
| Sat 5 Apr 2003 | Isle of Anglesey | 1 | 1 | Fatal |
| Thu 8 May 2003 | Isle of Anglesey | 2 | 1 | Slight |
| Tue 27 May 2003 | Isle of Anglesey | 2 | 1 | Slight |
| Tue 24 Jun 2003 | Isle of Anglesey | 2 | 3 | Slight |
| Thu 26 Jun 2003 | Isle of Anglesey | 2 | 3 | Slight |
| Thu 3 Jul 2003 | Isle of Anglesey | 1 | 1 | Slight |
| Sun 13 Jul 2003 | Isle of Anglesey | 2 | 1 | Serious |
| Sat 2 Aug 2003 | Isle of Anglesey | 2 | 2 | Slight |
| Sun 3 Aug 2003 | Isle of Anglesey | 1 | 4 | Fatal |
| Sat 23 Aug 2003 | Isle of Anglesey | 2 | 3 | Serious |
| Sun 31 Aug 2003 | Isle of Anglesey | 2 | 2 | Slight |
| Thu 18 Sep 2003 | Isle of Anglesey | 2 | 1 | Slight |
| Fri 19 Sep 2003 | Isle of Anglesey | 1 | 2 | Slight |
| Sun 9 Nov 2003 | Isle of Anglesey | 1 | 2 | Slight |
| Mon 17 Nov 2003 | Isle of Anglesey | 1 | 2 | Serious |
| Sat 22 Nov 2003 | Isle of Anglesey | 1 | 1 | Serious |
| Fri 5 Dec 2003 | Isle of Anglesey | 4 | 1 | Slight |
| Sun 7 Dec 2003 | Isle of Anglesey | 2 | 1 | Slight |
| Wed 17 Dec 2003 | Isle of Anglesey | 1 | 2 | Slight |
| Sat 27 Dec 2003 | Isle of Anglesey | 1 | 1 | Slight |