USGS Streamgage 14194150
South Yamhill River at McMinnville, OR
South Yamhill River at McMinnville, OR is USGS streamgage 14194150 in Oregon, monitoring river discharge in hydrologic subbasin 17090008. It drains a watershed of about 528 square miles. Discharge records at this site go back to 1994. Typical flow runs near 86.6 cfs in July and 1,337 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Oregon
- Drainage area
- 528 sq mi
- Subbasin (HUC-8)
- 17090008
- Coordinates
- 45.20694, -123.18167
- USGS site number
- 14194150
- Records begin
- 1994-10-01 (32 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 32 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 | 1,134.9 | 3,303.5 | 9,775.2 | |
| February | 841.1 | 2,336.9 | 8,443.2 | |
| March | 807.7 | 2,299.4 | 6,275.8 | |
| April | 659.6 | 1,337 | 3,597 | |
| May | 293.5 | 602.3 | 1,621.4 | |
| June | 108 | 263.8 | 664.1 | |
| July | 34.8 | 86.6 | 171.2 | |
| August | 11.6 | 34.8 | 69.8 | |
| September | 17.4 | 36.1 | 137.6 | |
| October | 40.3 | 131.3 | 821.7 | |
| November | 242.2 | 1,257.9 | 5,234.3 | |
| December | 736.7 | 2,869.7 | 10,268.1 |
All values in cubic feet per second (cfs).