| Indices | Description | Units |
| CDD | Consecutive dry days (rainfall < 1 mm) | Days |
| CWD | Consecutive wet days (rainfall > 1 mm) | Days |
| R10 mm | Number of heavy rainfall days (rainfall > 10 mm) | Days |
| R20 mm | Number of very heavy rainfall days (rainfall > 20 mm) | Days |
| PRCPTOT | Annual wet-day rainfall total | mm |