2 USGS Streamgages
Quilceda Creek flows and levels
Quilceda Creek is gauged at 2 USGS streamgages in Washington, each tracked by Rivermatics. The mainstem runs about 10 miles (16 km) from headwaters to outlet. Drainage area at the gauges ranges from 15 square miles at Quilceda Creek near Marysville, WA up to 17 at Quilceda Creek Ab West Fork near Marysville, WA.
Gauges on this river, upstream to downstream
Ordered by drainage area, which is how far down the river each gauge sits. April and July figures are long-term median daily flows for that month from the USGS record — historical normals, not a forecast and not today's reading.
| Gauge | State | Drainage sq mi | Elevation ft | April p50 cfs | July p50 cfs | Forecast |
|---|---|---|---|---|---|---|
| Quilceda Creek near Marysville, WA | WA | 15 | 39 | 23.4 | 6.4 | — |
| Quilceda Creek Ab West Fork near Marysville, WA | WA | 17 | 16 | 27.4 | 8.6 | — |
Typical flow by month at Quilceda Creek Ab West Fork near Marysville, WA
The furthest-downstream gauge on this river, so the fullest flow it carries here. 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 | — | 37.5 | — | |
| February | — | 40.5 | — | |
| March | — | 22.3 | — | |
| April | — | 27.4 | — | |
| May | — | 23.2 | — | |
| June | — | 14.3 | — | |
| July | — | 8.6 | — | |
| August | — | 7.1 | — | |
| September | — | 8.6 | — | |
| October | — | 14.2 | — | |
| November | — | 37.7 | — | |
| December | — | 39.6 | — |
All values in cubic feet per second (cfs).
Common questions
- When does the Quilceda Creek run highest?
- February, on the long-term record at Quilceda Creek Ab West Fork near Marysville, WA — the furthest-downstream gauge Rivermatics tracks on this river. Median daily flow there is about 40.5 cfs that month, against 7.1 cfs in August, the lowest. Upstream gauges peak on their own schedule; the table on this page gives April and July for each.
- How many gauges are on the Quilceda Creek?
- Rivermatics tracks 2 USGS streamgages on the Quilceda Creek, across Washington. Each has its own page with the site's full flow record and monthly normals. The river may carry other gauges that publish neither daily values nor discharge statistics; those are not tracked here.
- Can I use Quilceda Creek data for flood or safety decisions?
- No. Rivermatics provides estimates, not guarantees, and the readings and forecasts here may be delayed, inaccurate, or wrong. Do not use them for navigation or for any safety, rescue, or emergency decision. Check the National Weather Service and USGS directly, and use your own judgment.