USGS Streamgage 12058790
NF Skokomish River near Lwr Cushman Dam near Potlatch, WA
NF Skokomish River near Lwr Cushman Dam near Potlatch, WA is USGS streamgage 12058790 in Washington, monitoring river discharge in hydrologic subbasin 17110017. It drains a watershed of about 98 square miles. Discharge records at this site go back to 2008. Typical flow runs near 139.2 cfs in July and 213.1 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Washington
- Drainage area
- 98 sq mi
- Gauge elevation
- 396 ft
- Subbasin (HUC-8)
- 17110017
- Coordinates
- 47.39645, -123.20346
- USGS site number
- 12058790
- Records begin
- 2008-09-30 (18 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 18 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | 253.4 | 303.4 | 403.7 | |
| February | 243 | 269.3 | 320 | |
| March | 205 | 217.7 | 259.4 | |
| April | 178.4 | 213.1 | 249.7 | |
| May | 179.1 | 235.3 | 252.6 | |
| June | 154.9 | 230.1 | 253.3 | |
| July | 117.9 | 139.2 | 205.2 | |
| August | 111.3 | 122.5 | 131 | |
| September | 126.4 | 172.8 | 198.3 | |
| October | 185.9 | 205.1 | 293.4 | |
| November | 252.1 | 293.2 | 383.4 | |
| December | 249 | 303 | 453.5 |
All values in cubic feet per second (cfs).