USGS Streamgage 13137500
Trail Creek at Ketchum, ID
Trail Creek at Ketchum, ID is USGS streamgage 13137500 in Idaho, monitoring river discharge in hydrologic subbasin 17040219. It drains a watershed of about 64 square miles. Discharge records at this site go back to 1920. Typical flow runs near 37.8 cfs in July and 23.2 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Idaho
- Drainage area
- 64 sq mi
- Subbasin (HUC-8)
- 17040219
- Coordinates
- 43.67422, -114.36226
- USGS site number
- 13137500
- Records begin
- 1920-07-20 (106 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 106 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 | 2.9 | 7.2 | 14.9 | |
| February | 3.1 | 9.3 | 16.1 | |
| March | 5.9 | 12.5 | 25.6 | |
| April | 10.5 | 23.2 | 70.5 | |
| May | 29.5 | 85.3 | 233 | |
| June | 57.8 | 144.5 | 402 | |
| July | 12.4 | 37.8 | 179.2 | |
| August | 3.4 | 9.1 | 38.6 | |
| September | 1.7 | 7.1 | 22.4 | |
| October | 6.4 | 11.1 | 27.1 | |
| November | 7.2 | 13.1 | 25.7 | |
| December | 3.4 | 10.1 | 18.7 |
All values in cubic feet per second (cfs).
Other gauges in this subbasin
- 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
- Big Wood River at Stanton Crossing near Bellevue, ID
- Big Wood River below Magic Dam near Richfield, ID
- Malad River near Gooding, ID