USGS Streamgage 14312330
South Umpqua River at Melrose, OR
South Umpqua River at Melrose, OR is USGS streamgage 14312330 in Oregon, monitoring river discharge in hydrologic subbasin 17100302. It drains a watershed of about 1,770 square miles. Discharge records at this site go back to 2024. Typical flow runs near 152.7 cfs in July and 3,446 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Oregon
- Drainage area
- 1,770 sq mi
- Subbasin (HUC-8)
- 17100302
- Coordinates
- 43.25176, -123.4477
- USGS site number
- 14312330
- Records begin
- 2024-08-14 (2 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.
| Month | Low p10 | Typical p50 | High p90 | Range |
|---|---|---|---|---|
| January | — | 3,994.2 | — | |
| February | — | 5,263.9 | — | |
| March | — | 10,201.3 | — | |
| April | — | 3,446 | — | |
| May | — | 1,064.5 | — | |
| June | — | 406.9 | — | |
| July | — | 152.7 | — | |
| August | — | 94.5 | — | |
| September | — | 132.2 | — | |
| October | — | 285.1 | — | |
| November | — | 2,308.9 | — | |
| December | — | 5,611.7 | — |
All values in cubic feet per second (cfs).