USGS Streamgage 13213100
Snake River at Nyssa, OR
Snake River at Nyssa, OR is USGS streamgage 13213100 in Idaho, monitoring river discharge in hydrologic subbasin 17050115. It drains a watershed of about 58,700 square miles. Discharge records at this site go back to 1974. Typical flow runs near 7,547.1 cfs in July and 13,003.3 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Idaho
- Drainage area
- 58,700 sq mi
- Subbasin (HUC-8)
- 17050115
- Coordinates
- 43.87611, -116.9825
- USGS site number
- 13213100
- Records begin
- 1974-11-26 (52 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 52 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 | 7,690.6 | 9,491.6 | 19,603.2 | |
| February | 7,624.1 | 9,755.5 | 22,000 | |
| March | 7,336.8 | 10,741.9 | 29,438.7 | |
| April | 6,586.3 | 13,003.3 | 37,093.3 | |
| May | 6,985.5 | 11,735.5 | 35,867.7 | |
| June | 5,978 | 9,451 | 28,040 | |
| July | 5,372.6 | 7,547.1 | 12,569 | |
| August | 5,888.1 | 7,676.5 | 10,465.5 | |
| September | 7,384.3 | 8,979 | 13,023.3 | |
| October | 8,304.2 | 9,868.4 | 15,532.3 | |
| November | 7,992.3 | 9,325.3 | 15,183.3 | |
| December | 7,897.7 | 9,246.8 | 17,306.5 |
All values in cubic feet per second (cfs).
Other gauges in this region
- South Fork Malheur River near Riverside, OR
- Malheur River below Nevada Dam near Vale, OR
- Middle Fork Payette River near Crouch, ID
- Snake River at Weiser, ID
- Pahsimeroi River at Ellis, ID
- MF Salmon River at MF Lodge near Yellow Pine, ID
- MF Salmon River at Mouth near Shoup, ID
- Little Salmon River at Riggins, ID