| Station | Mann Kendall (Z) values | Sen slope estimate (Q) values |
| Makurdi | −1.01 | −0.008 |
| Ilorin | −0.22 | −0.002 |
| Lokoja | 0.33 | 0.002 |
| Minna | −0.01 | 0.000 |
| Jos | −1.70+ | −0.013 |
| Abuja | 2.08* | 0.037 |
| Lafia | 2.75** | 0.171 |