| Station: | Pernoo | Continent: | Europe | ||
| River: | Kymijoki | Major Basin : | Baltic Sea | ||
| Country: | Finland | Discharge into : | Baltic Sea | ||
| Observation Period: | 1900 - 1984 | Total Months: | 1020 | ||
| Latitude (dec deg): | 60.8 N | Area (km2): | 36535 | ||
| Longitude (dec deg): | 26.75 E | Elevation (m): | 19 | ||
| Annual Discharge: (m3/s): | 303.0 | (km3/yr): | 9.6 | ||
| Annual Runoff: (l/s/km2): | 8.3 | (mm/yr): | 261.6 |
| Mean for Observation Period | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| m3/sec | 293.4 | 283.7 | 268.4 | 292.7 | 350.0 | 373.2 | 347.6 | 307.9 | 279.3 | 269.8 | 278.1 | 291.0 |
| km3/mo | 0.8 | 0.7 | 0.7 | 0.8 | 0.9 | 1.0 | 0.9 | 0.8 | 0.7 | 0.7 | 0.7 | 0.8 |
| mm/mo | 21.5 | 18.8 | 19.7 | 20.8 | 25.7 | 26.5 | 25.5 | 22.6 | 19.8 | 19.8 | 19.7 | 21.3 |
| l/s/km2 | 8.0 | 7.8 | 7.3 | 8.0 | 9.6 | 10.2 | 9.5 | 8.4 | 7.6 | 7.4 | 7.6 | 8.0 |
