USGS Streamgage 13060000
Snake River near Shelley, ID
Snake River near Shelley, ID is USGS streamgage 13060000 in Idaho, monitoring river discharge in hydrologic subbasin 17040206. It drains a watershed of about 9,790 square miles. Discharge records at this site go back to 1890. Typical flow runs near 6,130.6 cfs in July and 5,694.3 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Idaho
- Drainage area
- 9,790 sq mi
- Subbasin (HUC-8)
- 17040206
- Coordinates
- 43.41306, -112.135
- USGS site number
- 13060000
- Records begin
- 1890-06-04 (136 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 111 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 | 1,831 | 2,761.9 | 5,578.7 | |
| February | 1,952.4 | 2,959.7 | 5,925.5 | |
| March | 2,056.8 | 3,221.9 | 9,072.6 | |
| April | 2,581.3 | 5,694.3 | 15,516.7 | |
| May | 4,865.8 | 10,549.7 | 21,219.4 | |
| June | 5,262.7 | 10,929.7 | 22,193.3 | |
| July | 4,059.4 | 6,130.6 | 13,171 | |
| August | 2,985.5 | 4,708.7 | 7,781 | |
| September | 2,051 | 3,872.3 | 6,197.7 | |
| October | 1,723.9 | 2,999.4 | 4,998.7 | |
| November | 2,227.3 | 3,175 | 5,362.7 | |
| December | 2,012.9 | 3,013.2 | 5,641.9 |
All values in cubic feet per second (cfs).