| Station: | Peranai | Continent: | Asia | ||
| River: | Vaigai | Major Basin : | Bay of Bengal | ||
| Country: | India | Discharge into : | Indian Ocean | ||
| Observation Period: | 1972 - 1979 | Total Months: | 81 | ||
| Latitude (dec deg): | 10.1 N | Area (km2): | 2253 | ||
| Longitude (dec deg): | 77.8 E | Elevation (m): | 279 | ||
| Annual Discharge: (m3/s): | 28.8 | (km3/yr): | 0.9 | ||
| Annual Runoff: (l/s/km2): | 12.4 | (mm/yr): | 391.6 |
| Mean for Observation Period | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| m3/sec | 35.3 | 24.0 | 7.5 | 5.7 | 3.7 | 13.1 | 17.4 | 24.1 | 24.1 | 43.9 | 103.7 | 33.9 |
| km3/mo | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 0.1 | 0.1 | 0.3 | 0.1 |
| mm/mo | 41.9 | 25.8 | 8.9 | 6.5 | 4.4 | 15.1 | 20.7 | 28.7 | 27.8 | 52.1 | 119.3 | 40.2 |
| l/s/km2 | 15.7 | 10.7 | 3.3 | 2.5 | 1.6 | 5.8 | 7.7 | 10.7 | 10.7 | 19.5 | 46.0 | 15.0 |
