Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Tue 28 Jan 2003 | Isle of Anglesey | 1 | 4 | Serious |
| Mon 17 Feb 2003 | Isle of Anglesey | 2 | 1 | Slight |
| Tue 18 Mar 2003 | Isle of Anglesey | 3 | 1 | Slight |
| Tue 25 Mar 2003 | Isle of Anglesey | 1 | 1 | Slight |
| Mon 21 Apr 2003 | Isle of Anglesey | 1 | 1 | Serious |
| Fri 2 May 2003 | Isle of Anglesey | 1 | 1 | Slight |
| Thu 29 May 2003 | Isle of Anglesey | 1 | 1 | Slight |
| Fri 30 May 2003 | Isle of Anglesey | 1 | 1 | Slight |
| Thu 3 Jul 2003 | Isle of Anglesey | 1 | 1 | Serious |
| Fri 4 Jul 2003 | Isle of Anglesey | 1 | 2 | Slight |
| Sat 6 Sep 2003 | Isle of Anglesey | 2 | 1 | Slight |
| Sun 7 Sep 2003 | Isle of Anglesey | 2 | 1 | Slight |
| Sun 19 Oct 2003 | Isle of Anglesey | 1 | 1 | Serious |
| Thu 4 Dec 2003 | Isle of Anglesey | 2 | 1 | Slight |
| Tue 16 Dec 2003 | Isle of Anglesey | 2 | 1 | Slight |