| Coastal Town | Average September Rainfall (mm) |
|---|---|
| St Ives | 69 |
| Newquay | 65 |
| Weymouth | 81 |
| Torquay | 84 |
| Penzance | 75 |
| Falmouth | 78 |
| Bude | 62 |
| Padstow | 72 |
| Minehead | 92 |
| Exmouth | 88 |
| Ilfracombe | 58 |
Calculate the lower quartile value of September rainfall for the towns shown. You must show your working out.