Table 2: Mean annual and seasonal rainfall (mm), coefficient of variation (CV%) and contribution of seasonal rainfall to the annual rainfall (CT%) for six meteorological stations.
| Stations | Kiremt rainfall | Belg rainfall | Bega rainfall | Annual rainfall | |||||||
| Mean | CV (%) | CT (%) | Mean | CV (%) | CT (%) | Mean | CV (%) | CT (%) | Mean | CV (%) | |
| Sirinka | 535.8 | 28.6 | 61.1 | 241.9 | 45.3 | 27.6 | 20 | 124.2 | 2.3 | 876.4 | 19.9 |
| Sanka | 451.2 | 29.2 | 73.9 | 114.3 | 54.7 | 18.7 | 44.3 | 109.3 | 7.3 | 609.8 | 26.2 |
| Hara | 402.9 | 41.1 | 71.1 | 117.3 | 64.4 | 20.7 | 46.4 | 100.6 | 8.2 | 566.3 | 35.8 |
| Woldia | 479.7 | 35.5 | 65.6 | 173.4 | 45.1 | 23.7 | 12.5 | 142.6 | 1.7 | 731.4 | 20.6 |
| Delib | 496.5 | 27.1 | 83.3 | 92.9 | 60.2 | 15.6 | 23.7 | 125.7 | 3.9 | 596.3 | 31.5 |
| Gobye | 596.2 | 37.3 | 71.0 | 192.6 | 63.6 | 22.9 | 75.7 | 84 | 9.0 | 839.7 | 29.2 |
| Areal | 489.2 | 25.2 | 69.6 | 154.5 | 45.6 | 21.9 | 36.7 | 80.3 | 5.2 | 703.3 | 27.2 |