USGS Streamgage 14301500
Wilson River near Tillamook, OR
Wilson River near Tillamook, OR is USGS streamgage 14301500 in Oregon, monitoring river discharge in hydrologic subbasin 17100203. It drains a watershed of about 161 square miles. Discharge records at this site go back to 1914. Typical flow runs near 145.4 cfs in July and 935.4 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Oregon
- Drainage area
- 161 sq mi
- Subbasin (HUC-8)
- 17100203
- Coordinates
- 45.47594, -123.72512
- USGS site number
- 14301500
- Records begin
- 1914-12-01 (112 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 95 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 | 641.8 | 1,705.8 | 5,685.5 | |
| February | 603.6 | 1,417.6 | 4,605.2 | |
| March | 588.3 | 1,380.3 | 3,524.8 | |
| April | 484.3 | 935.4 | 2,201.3 | |
| May | 272.3 | 491.4 | 1,146.3 | |
| June | 162 | 264.8 | 609.2 | |
| July | 96.5 | 145.4 | 239.7 | |
| August | 61.7 | 90 | 144.8 | |
| September | 55.2 | 81.6 | 300 | |
| October | 70 | 242.8 | 1,379.5 | |
| November | 307.3 | 1,242.2 | 4,413.3 | |
| December | 619.9 | 1,761.6 | 5,994.2 |
All values in cubic feet per second (cfs).