USGS Streamgage 12170300
Stillaguamish River near Stanwood, WA
Stillaguamish River near Stanwood, WA is USGS streamgage 12170300 in Washington, monitoring river discharge in hydrologic subbasin 17110008. It drains a watershed of about 662 square miles. Discharge records at this site go back to 2013. Typical flow runs near 1,026.7 cfs in July and 4,940 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Washington
- Drainage area
- 662 sq mi
- Gauge elevation
- 7 ft
- Subbasin (HUC-8)
- 17110008
- Coordinates
- 48.21121, -122.33737
- USGS site number
- 12170300
- Records begin
- 2013-09-27 (13 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 3 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 | — | 6,122.6 | — | |
| February | — | 5,160.7 | — | |
| March | — | 7,883.9 | — | |
| April | — | 4,940 | — | |
| May | — | 3,983.2 | — | |
| June | — | 1,678.2 | — | |
| July | — | 1,026.7 | — | |
| August | — | 643.9 | — | |
| September | — | 1,393.1 | — | |
| October | — | 4,644.9 | — | |
| November | — | 7,931.7 | — | |
| December | — | 4,907.1 | — |
All values in cubic feet per second (cfs).