| Station: | Clarkstone, Washington | Continent: | North America | ||
| River: | Snake | Major Basin : | Columbia River | ||
| Country: | United States | Discharge into : | Pacific Ocean | ||
| Observation Period: | 1915 - 1972 | Total Months: | 675 | ||
| Latitude (dec deg): | 46.43 N | Area (km2): | 267300 | ||
| Longitude (dec deg): | 117.16 W | Elevation (m): | 200 | ||
| Annual Discharge: (m3/s): | 1411.4 | (km3/yr): | 44.6 | ||
| Annual Runoff: (l/s/km2): | 5.3 | (mm/yr): | 166.9 |
| Mean for Observation Period | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
| m3/sec | 912.3 | 1051.2 | 1363.3 | 2290.8 | 3549.7 | 3191.8 | 1142.9 | 560.1 | 558.8 | 681.1 | 784.8 | 889.5 |
| km3/mo | 2.4 | 2.5 | 3.7 | 5.9 | 9.5 | 8.3 | 3.1 | 1.5 | 1.4 | 1.8 | 2.0 | 2.4 |
| mm/mo | 9.1 | 9.5 | 13.7 | 22.2 | 35.6 | 31.0 | 11.5 | 5.6 | 5.4 | 6.8 | 7.6 | 8.9 |
| l/s/km2 | 3.4 | 3.9 | 5.1 | 8.6 | 13.3 | 11.9 | 4.3 | 2.1 | 2.1 | 2.5 | 2.9 | 3.3 |
