USGS Streamgage 12060500
South Fork Skokomish River near Union, WA
South Fork Skokomish River near Union, WA is USGS streamgage 12060500 in Washington, monitoring river discharge in hydrologic subbasin 17110017. It drains a watershed of about 76 square miles. Discharge records at this site go back to 1931. Typical flow runs near 177.3 cfs in July and 617.2 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Washington
- Drainage area
- 76 sq mi
- Gauge elevation
- 222 ft
- Subbasin (HUC-8)
- 17110017
- Coordinates
- 47.34037, -123.28016
- USGS site number
- 12060500
- Records begin
- 1931-08-01 (95 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 95 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 | 378.8 | 909.7 | 3,007.1 | |
| February | 354.5 | 763.6 | 2,345.2 | |
| March | 380.3 | 714.9 | 1,760 | |
| April | 359.6 | 617.2 | 1,246.2 | |
| May | 278.2 | 498.3 | 941.9 | |
| June | 172.8 | 320.1 | 616.4 | |
| July | 110.7 | 177.3 | 360.7 | |
| August | 81.3 | 112.9 | 205 | |
| September | 74 | 106.9 | 360.7 | |
| October | 95.1 | 288.2 | 1,277.9 | |
| November | 263 | 799.3 | 2,600.3 | |
| December | 381.9 | 987.1 | 3,042.6 |
All values in cubic feet per second (cfs).