| Station: | Urridafoss | Continent: | Europe | ||
| River: | Thjorsa | Major Basin : | Atlantic Ocean | ||
| Country: | Iceland | Discharge into : | Atlantic Ocean | ||
| Observation Period: | 1965 - 1979 | Total Months: | 168 | ||
| Latitude (dec deg): | 63.93 N | Area (km2): | 7200 | ||
| Longitude (dec deg): | 20.64 W | Elevation (m): | 44 | ||
| Annual Discharge: (m3/s): | 358.3 | (km3/yr): | 11.3 | ||
| Annual Runoff: (l/s/km2): | 49.8 | (mm/yr): | 1569.4 |
| Mean for Observation Period | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| m3/sec | 275.6 | 274.8 | 270.6 | 320.5 | 498.4 | 592.6 | 441.6 | 454.4 | 352.3 | 289.9 | 262.1 | 261.9 |
| km3/mo | 0.7 | 0.7 | 0.7 | 0.8 | 1.3 | 1.5 | 1.2 | 1.2 | 0.9 | 0.8 | 0.7 | 0.7 |
| mm/mo | 102.5 | 92.3 | 100.7 | 115.4 | 185.4 | 213.3 | 164.3 | 169.0 | 126.8 | 107.9 | 94.3 | 97.4 |
| l/s/km2 | 38.3 | 38.2 | 37.6 | 44.5 | 69.2 | 82.3 | 61.3 | 63.1 | 48.9 | 40.3 | 36.4 | 36.4 |
