| Rainfall station | Length (years) | DMC gradients | Correlation | |
| Egerton | 58 | +1.0675 | 0.9997 | |
| Nessuiet | 23 | +1.1156 | 0.9993 | |
| Terret | 23 | +1.1654 | 0.9992 | |
| NPBS | 23 | +1.0064 | 0.9996 | |
| Ogilgei | 18 | +1.0628 | 0.9977 |