Aberdaron
Aberystwyth
Cambrian Mountains
Cardiff
Cardigan
Carmarthen
Colwyn Bay
Holyhead
Lake Vyrnwy
Llangollen
Llŷn Peninsula
Milford Haven
Newport
Porthmadog
Raf Mona
Snowdonia
South Wales
Swansea
Wrexham| Stations: 14 | SLP tendency |
| Aberdaron (94 m) | - 0.9 |
| Aberporth (134 m) | - 0.7 |
| Capel Curig (215 m) | - 0.7 |
| Lake Vyrnwy (359 m) | - 0.5 |
| Milford Haven (32 m) | - 0.6 |
| Mumbles (32 m) | - 0.9 |
| Pembrey Burrows (6 m) | - 0.3 |
| Raf Mona (62 m) | - 1.1 |
| Rhyl (76 m) | - 1.4 |
| Sennybridge (307 m) | - 0.7 |
| St Athan (49 m) | - 0.9 |
| Trawscoed (62 m) | - 0.6 |
| Valley (10 m) | - 1.1 |