| Station: | Niamey | Continent: | Africa | ||
| River: | Niger | Major Basin : | |||
| Country: | Niger | Discharge into : | Atlantic Ocean | ||
| Observation Period: | 1929 - 1991 | Total Months: | 685 | ||
| Latitude (dec deg): | 13 N | Area (km2): | 700000 | ||
| Longitude (dec deg): | 2 E | Elevation (m): | 176 | ||
| Annual Discharge: (m3/s): | 898.8 | (km3/yr): | 28.5 | ||
| Annual Runoff: (l/s/km2): | 1.3 | (mm/yr): | 40.7 |
| Mean for Observation Period | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| m3/sec | 1591.2 | 1419.9 | 1039.2 | 569.1 | 229.3 | 97.1 | 116.8 | 515.4 | 1049.1 | 1257.2 | 1423.6 | 1565.2 |
| km3/mo | 4.3 | 3.4 | 2.8 | 1.5 | 0.6 | 0.3 | 0.3 | 1.4 | 2.7 | 3.4 | 3.7 | 4.2 |
| mm/mo | 6.1 | 4.9 | 4.0 | 2.1 | 0.9 | 0.4 | 0.4 | 2.0 | 3.9 | 4.8 | 5.3 | 6.0 |
| l/s/km2 | 2.3 | 2.0 | 1.5 | 0.8 | 0.3 | 0.1 | 0.2 | 0.7 | 1.5 | 1.8 | 2.0 | 2.2 |
