| Station: | Ansongo | Continent: | Africa | ||
| River: | Niger | Major Basin : | Niger | ||
| Country: | Mali | Discharge into : | Atlantic Ocean | ||
| Observation Period: | 1950 - 1980 | Total Months: | 258 | ||
| Latitude (dec deg): | 15.67 N | Area (km2): | 566000 | ||
| Longitude (dec deg): | 0.5 E | Elevation (m): | |||
| Annual Discharge: (m3/s): | 1229.9 | (km3/yr): | 34.3 | ||
| Annual Runoff: (l/s/km2): | 1.9 | (mm/yr): | 60.7 |
| Mean for Observation Period | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| m3/sec | 1927.3 | 1674.2 | 1439.8 | 873.4 | 362.6 | 109.6 | 152.1 | 566.2 | 1082.4 | 1427.9 | 1658.1 | 1826.1 |
| km3/mo | 5.2 | 4.1 | 3.9 | 2.3 | 1.0 | 0.3 | 0.4 | 1.5 | 2.8 | 3.8 | 4.3 | 4.9 |
| mm/mo | 9.1 | 7.2 | 6.8 | 4.0 | 1.7 | 0.5 | 0.7 | 2.7 | 5.0 | 6.8 | 7.6 | 8.6 |
| l/s/km2 | 3.4 | 3.0 | 2.5 | 1.5 | 0.6 | 0.2 | 0.3 | 1.0 | 1.9 | 2.5 | 2.9 | 3.2 |
