Southern
1. Salinas
2. Guayanilla
3. Guánica
4. La Parguera
Western
5. Cabo Rojo
6. Rincón
7. Aguadilla
Northern
8. Isabela
9. Arecibo
10. Vega Baja
11. San Juan
Eastern
12. Fajardo
13. Culebra
Click on a location on the map, the name of a site, or scroll down to see the time series for each location.