USGS Streamgage 13306000
NF Salmon River at North Fork, ID
NF Salmon River at North Fork, ID is USGS streamgage 13306000 in Idaho, monitoring river discharge in hydrologic subbasin 17060203. It drains a watershed of about 211 square miles. Discharge records at this site go back to 1929. Typical flow runs near 77.8 cfs in July and 100 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Idaho
- Drainage area
- 211 sq mi
- Subbasin (HUC-8)
- 17060203
- Coordinates
- 45.4075, -113.99306
- USGS site number
- 13306000
- Records begin
- 1929-10-01 (97 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 11 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 | 27.3 | 33.4 | 48.5 | |
| February | 29.1 | 34 | 46.4 | |
| March | 31.1 | 40 | 86.5 | |
| April | 45.9 | 100 | 311.6 | |
| May | 155.5 | 265 | 572.2 | |
| June | 99.8 | 226.6 | 587.8 | |
| July | 36.5 | 77.8 | 124.1 | |
| August | 22.1 | 39.4 | 52.2 | |
| September | 22.9 | 34.3 | 47 | |
| October | 28.5 | 39.2 | 50 | |
| November | 30.8 | 41.5 | 52.5 | |
| December | 26 | 37.5 | 52.1 |
All values in cubic feet per second (cfs).