USGS Streamgage 13136000
Big Wood River at Ketchum, ID
Big Wood River at Ketchum, ID is USGS streamgage 13136000 in Idaho, monitoring river discharge in hydrologic subbasin 17040219. It drains a watershed of about 240 square miles. Discharge records at this site go back to 1920. Typical flow runs near 401.3 cfs in July and 267.3 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Idaho
- Drainage area
- 240 sq mi
- Subbasin (HUC-8)
- 17040219
- Coordinates
- 43.68861, -114.37333
- USGS site number
- 13136000
- Records begin
- 1920-05-06 (106 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 2 years of data), averaged within each month. These describe the historical normal range — they are not a forecast and not today's reading.
Only 8 of 12 months have enough record to summarize; the rest are omitted.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| April | — | 267.3 | — | |
| May | — | 784.4 | — | |
| June | — | 1,037.9 | — | |
| July | — | 401.3 | — | |
| August | — | 163.8 | — | |
| September | — | 129.4 | — | |
| October | — | 107.8 | — | |
| November | — | 85 | — |
All values in cubic feet per second (cfs).
Other gauges in this subbasin
- Warm Springs Creek at Gates Rd near Ketchum, ID
- Trail Creek near Sun Valley, ID
- Trail Creek at Ketchum, ID
- East Fork Big Wood River at Gimlet, ID
- Big Wood River at Gimlet, ID
- Big Wood River at Hailey Id Total Flow
- Big Wood River at S Broadford Bridge near Bellevue, ID
- Big Wood River at Glendale Bridge near Bellevue, ID