| Station: | Ballathie | Continent: | Europe | ||
| River: | Tay | Major Basin : | North Sea | ||
| Country: | United Kingdom | Discharge into : | North Sea | ||
| Observation Period: | 1980 - 1984 | Total Months: | 60 | ||
| Latitude (dec deg): | 56.49 N | Area (km2): | 4587 | ||
| Longitude (dec deg): | 3.36 W | Elevation (m): | 26 | ||
| Annual Discharge: (m3/s): | 180.0 | (km3/yr): | 5.7 | ||
| Annual Runoff: (l/s/km2): | 39.2 | (mm/yr): | 1237.2 |
| Mean for Observation Period | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| m3/sec | 300.6 | 227.6 | 242.8 | 143.6 | 103.2 | 74.8 | 47.5 | 57.6 | 150.1 | 259.2 | 287.8 | 267.2 |
| km3/mo | 0.8 | 0.6 | 0.7 | 0.4 | 0.3 | 0.2 | 0.1 | 0.2 | 0.4 | 0.7 | 0.7 | 0.7 |
| mm/mo | 175.5 | 120.0 | 141.8 | 81.1 | 60.3 | 42.3 | 27.7 | 33.6 | 84.8 | 151.3 | 162.6 | 156.0 |
| l/s/km2 | 65.5 | 49.6 | 52.9 | 31.3 | 22.5 | 16.3 | 10.4 | 12.6 | 32.7 | 56.5 | 62.7 | 58.3 |
