Fatal
Serious
Slight
Uncategorised
| Date | Local Authority | Vehicles | Casualties | Severity |
|---|---|---|---|---|
| Fri 4 Jan 2013 | Gwynedd | 3 | 1 | Slight |
| Wed 9 Jan 2013 | Ceredigion | 2 | 1 | Slight |
| Tue 15 Jan 2013 | Gwynedd | 2 | 1 | Slight |
| Fri 18 Jan 2013 | Ceredigion | 2 | 2 | Slight |
| Fri 18 Jan 2013 | Powys | 2 | 2 | Serious |
| Tue 22 Jan 2013 | Ceredigion | 4 | 1 | Slight |
| Tue 22 Jan 2013 | Ceredigion | 3 | 1 | Slight |
| Sun 27 Jan 2013 | Gwynedd | 1 | 1 | Slight |
| Tue 29 Jan 2013 | Pembrokeshire | 2 | 1 | Slight |
| Tue 5 Feb 2013 | Pembrokeshire | 1 | 1 | Slight |
| Mon 11 Feb 2013 | Gwynedd | 2 | 1 | Slight |
| Mon 11 Feb 2013 | Gwynedd | 1 | 2 | Serious |
| Tue 12 Feb 2013 | Pembrokeshire | 1 | 1 | Slight |
| Wed 20 Feb 2013 | Ceredigion | 2 | 2 | Slight |
| Fri 22 Feb 2013 | Ceredigion | 1 | 1 | Slight |
| Wed 27 Feb 2013 | Powys | 1 | 1 | Slight |
| Fri 1 Mar 2013 | Pembrokeshire | 1 | 1 | Slight |
| Mon 4 Mar 2013 | Gwynedd | 4 | 2 | Slight |
| Thu 7 Mar 2013 | Pembrokeshire | 3 | 2 | Slight |
| Thu 7 Mar 2013 | Gwynedd | 2 | 2 | Slight |
| Thu 7 Mar 2013 | Ceredigion | 2 | 3 | Slight |
| Sat 9 Mar 2013 | Ceredigion | 2 | 1 | Slight |
| Tue 12 Mar 2013 | Ceredigion | 2 | 4 | Slight |
| Sun 17 Mar 2013 | Gwynedd | 1 | 1 | Slight |
| Sun 24 Mar 2013 | Gwynedd | 1 | 1 | Slight |
| Tue 26 Mar 2013 | Gwynedd | 2 | 1 | Slight |
| Tue 26 Mar 2013 | Pembrokeshire | 2 | 3 | Slight |
| Thu 28 Mar 2013 | Pembrokeshire | 2 | 1 | Slight |
| Tue 2 Apr 2013 | Ceredigion | 2 | 1 | Slight |
| Fri 12 Apr 2013 | Gwynedd | 2 | 5 | Serious |
| Fri 12 Apr 2013 | Ceredigion | 1 | 1 | Slight |
| Sun 14 Apr 2013 | Gwynedd | 1 | 1 | Slight |
| Sun 14 Apr 2013 | Gwynedd | 1 | 1 | Serious |
| Thu 18 Apr 2013 | Ceredigion | 2 | 1 | Slight |
| Fri 19 Apr 2013 | Ceredigion | 1 | 1 | Slight |
| Wed 24 Apr 2013 | Pembrokeshire | 1 | 1 | Serious |
| Mon 29 Apr 2013 | Gwynedd | 2 | 1 | Slight |
| Mon 6 May 2013 | Gwynedd | 4 | 1 | Slight |
| Fri 10 May 2013 | Pembrokeshire | 1 | 1 | Slight |
| Sat 11 May 2013 | Ceredigion | 3 | 2 | Serious |
| Tue 21 May 2013 | Gwynedd | 2 | 1 | Slight |
| Wed 22 May 2013 | Ceredigion | 3 | 2 | Slight |
| Sat 25 May 2013 | Ceredigion | 2 | 1 | Slight |
| Sun 26 May 2013 | Ceredigion | 2 | 1 | Serious |
| Sun 26 May 2013 | Ceredigion | 2 | 1 | Slight |
| Sun 26 May 2013 | Ceredigion | 2 | 3 | Slight |
| Tue 28 May 2013 | Ceredigion | 1 | 2 | Slight |
| Mon 3 Jun 2013 | Gwynedd | 3 | 2 | Slight |
| Fri 7 Jun 2013 | Gwynedd | 2 | 2 | Serious |
| Sat 15 Jun 2013 | Gwynedd | 1 | 1 | Slight |
| Mon 17 Jun 2013 | Ceredigion | 2 | 1 | Slight |
| Mon 24 Jun 2013 | Powys | 5 | 3 | Slight |
| Mon 24 Jun 2013 | Ceredigion | 1 | 1 | Slight |
| Fri 28 Jun 2013 | Gwynedd | 1 | 1 | Serious |
| Sat 29 Jun 2013 | Ceredigion | 1 | 3 | Slight |
| Tue 2 Jul 2013 | Pembrokeshire | 3 | 1 | Slight |
| Thu 4 Jul 2013 | Gwynedd | 2 | 2 | Slight |
| Sat 6 Jul 2013 | Ceredigion | 1 | 1 | Slight |
| Wed 10 Jul 2013 | Ceredigion | 2 | 1 | Slight |
| Wed 10 Jul 2013 | Ceredigion | 5 | 1 | Slight |
| Sat 13 Jul 2013 | Ceredigion | 2 | 2 | Slight |
| Sat 13 Jul 2013 | Ceredigion | 1 | 1 | Slight |
| Fri 19 Jul 2013 | Ceredigion | 2 | 2 | Serious |
| Fri 19 Jul 2013 | Ceredigion | 3 | 1 | Serious |
| Sat 20 Jul 2013 | Powys | 3 | 1 | Slight |
| Sat 27 Jul 2013 | Gwynedd | 1 | 3 | Slight |
| Sun 28 Jul 2013 | Ceredigion | 1 | 2 | Slight |
| Mon 29 Jul 2013 | Gwynedd | 4 | 6 | Slight |
| Tue 30 Jul 2013 | Ceredigion | 2 | 1 | Slight |
| Tue 30 Jul 2013 | Ceredigion | 4 | 1 | Slight |
| Wed 31 Jul 2013 | Gwynedd | 1 | 1 | Slight |
| Wed 31 Jul 2013 | Gwynedd | 2 | 3 | Slight |
| Thu 1 Aug 2013 | Pembrokeshire | 2 | 1 | Slight |
| Fri 2 Aug 2013 | Ceredigion | 2 | 1 | Slight |
| Sat 3 Aug 2013 | Pembrokeshire | 1 | 1 | Slight |
| Sat 3 Aug 2013 | Gwynedd | 2 | 2 | Slight |
| Sun 4 Aug 2013 | Pembrokeshire | 3 | 2 | Slight |
| Mon 5 Aug 2013 | Gwynedd | 2 | 1 | Serious |
| Wed 7 Aug 2013 | Ceredigion | 3 | 2 | Slight |
| Mon 12 Aug 2013 | Gwynedd | 2 | 1 | Slight |
| Mon 12 Aug 2013 | Gwynedd | 1 | 1 | Serious |
| Wed 14 Aug 2013 | Ceredigion | 3 | 2 | Slight |
| Wed 14 Aug 2013 | Ceredigion | 2 | 1 | Slight |
| Thu 15 Aug 2013 | Ceredigion | 2 | 2 | Slight |
| Tue 20 Aug 2013 | Ceredigion | 1 | 2 | Serious |
| Wed 28 Aug 2013 | Ceredigion | 5 | 3 | Slight |
| Wed 28 Aug 2013 | Ceredigion | 2 | 1 | Slight |
| Fri 30 Aug 2013 | Pembrokeshire | 2 | 1 | Slight |
| Sat 31 Aug 2013 | Ceredigion | 1 | 1 | Slight |
| Sun 1 Sep 2013 | Ceredigion | 1 | 1 | Slight |
| Mon 2 Sep 2013 | Ceredigion | 2 | 1 | Slight |
| Tue 3 Sep 2013 | Ceredigion | 1 | 1 | Slight |
| Wed 4 Sep 2013 | Gwynedd | 2 | 1 | Slight |
| Sun 8 Sep 2013 | Ceredigion | 1 | 1 | Slight |
| Wed 11 Sep 2013 | Ceredigion | 1 | 1 | Slight |
| Sun 15 Sep 2013 | Ceredigion | 2 | 3 | Serious |
| Tue 17 Sep 2013 | Ceredigion | 4 | 2 | Slight |
| Thu 19 Sep 2013 | Ceredigion | 1 | 1 | Slight |
| Mon 23 Sep 2013 | Ceredigion | 2 | 1 | Slight |
| Thu 26 Sep 2013 | Gwynedd | 2 | 1 | Slight |
| Fri 4 Oct 2013 | Ceredigion | 3 | 1 | Slight |
| Mon 14 Oct 2013 | Ceredigion | 1 | 1 | Serious |
| Thu 17 Oct 2013 | Gwynedd | 5 | 1 | Slight |
| Thu 24 Oct 2013 | Ceredigion | 2 | 2 | Slight |
| Thu 24 Oct 2013 | Gwynedd | 1 | 1 | Slight |
| Fri 1 Nov 2013 | Ceredigion | 2 | 2 | Slight |
| Sat 2 Nov 2013 | Ceredigion | 2 | 1 | Serious |
| Thu 7 Nov 2013 | Ceredigion | 1 | 2 | Slight |
| Sat 9 Nov 2013 | Pembrokeshire | 1 | 2 | Serious |
| Tue 12 Nov 2013 | Ceredigion | 2 | 2 | Slight |
| Wed 13 Nov 2013 | Gwynedd | 2 | 1 | Slight |
| Mon 25 Nov 2013 | Gwynedd | 3 | 1 | Serious |
| Tue 26 Nov 2013 | Ceredigion | 2 | 1 | Slight |
| Tue 26 Nov 2013 | Ceredigion | 2 | 1 | Slight |
| Thu 28 Nov 2013 | Gwynedd | 1 | 1 | Slight |
| Wed 4 Dec 2013 | Gwynedd | 2 | 4 | Serious |
| Mon 9 Dec 2013 | Powys | 1 | 1 | Slight |
| Tue 10 Dec 2013 | Pembrokeshire | 1 | 1 | Slight |
| Wed 11 Dec 2013 | Powys | 2 | 2 | Fatal |
| Fri 20 Dec 2013 | Ceredigion | 2 | 1 | Slight |
| Mon 23 Dec 2013 | Gwynedd | 3 | 3 | Serious |
| Sat 28 Dec 2013 | Ceredigion | 1 | 1 | Slight |