| Station: | Cornwall | Continent: | North America | ||
| River: | St. Lawrence | Major Basin : | Gulf of St. Lawrence | ||
| Country: | Canada | Discharge into : | Atlantic Ocean | ||
| Observation Period: | 1966 - 1984 | Total Months: | 228 | ||
| Latitude (dec deg): | 45 N | Area (km2): | 774410 | ||
| Longitude (dec deg): | 74.78 W | Elevation (m): | 47 | ||
| Annual Discharge: (m3/s): | 7656.8 | (km3/yr): | 241.5 | ||
| Annual Runoff: (l/s/km2): | 9.9 | (mm/yr): | 311.8 |
| Mean for Observation Period | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| m3/sec | 6689.2 | 7036.8 | 7465.8 | 7773.6 | 7990.1 | 8079.9 | 8042.8 | 7972.3 | 7946.4 | 7831.5 | 7690.7 | 7335.6 |
| km3/mo | 17.9 | 17.0 | 20.0 | 20.1 | 21.4 | 20.9 | 21.5 | 21.4 | 20.6 | 21.0 | 19.9 | 19.6 |
| mm/mo | 23.1 | 22.0 | 25.8 | 26.0 | 27.6 | 27.0 | 27.8 | 27.6 | 26.6 | 27.1 | 25.7 | 25.4 |
| l/s/km2 | 8.6 | 9.1 | 9.6 | 10.0 | 10.3 | 10.4 | 10.4 | 10.3 | 10.3 | 10.1 | 9.9 | 9.5 |
