| Station: | Norham | Continent: | Europe | ||
| River: | Tweed | Major Basin : | North Sea | ||
| Country: | United Kingdom | Discharge into : | North Sea | ||
| Observation Period: | 1980 - 1984 | Total Months: | 60 | ||
| Latitude (dec deg): | 55.71 N | Area (km2): | 4390 | ||
| Longitude (dec deg): | 2.16 W | Elevation (m): | 4 | ||
| Annual Discharge: (m3/s): | 82.3 | (km3/yr): | 2.6 | ||
| Annual Runoff: (l/s/km2): | 18.7 | (mm/yr): | 590.9 |
| Mean for Observation Period | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| m3/sec | 141.2 | 115.1 | 120.0 | 57.6 | 50.7 | 45.6 | 28.4 | 25.1 | 38.3 | 108.9 | 139.5 | 118.3 |
| km3/mo | 0.4 | 0.3 | 0.3 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.3 | 0.4 | 0.3 |
| mm/mo | 86.1 | 63.5 | 73.2 | 34.0 | 30.9 | 26.9 | 17.3 | 15.3 | 22.6 | 66.4 | 82.4 | 72.2 |
| l/s/km2 | 32.2 | 26.2 | 27.3 | 13.1 | 11.5 | 10.4 | 6.5 | 5.7 | 8.7 | 24.8 | 31.8 | 26.9 |
