USGS Streamgage 12201500
Samish River near Burlington, WA
Samish River near Burlington, WA is USGS streamgage 12201500 in Washington, monitoring river discharge in hydrologic subbasin 17110002. It drains a watershed of about 88 square miles. Discharge records at this site go back to 1943. Typical flow runs near 45.9 cfs in July and 252.4 cfs in April, with the higher of the two arriving in April. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.
View live conditions & forecast →
Gauge details
- State
- Washington
- Drainage area
- 88 sq mi
- Gauge elevation
- 43 ft
- Subbasin (HUC-8)
- 17110002
- Coordinates
- 48.54594, -122.33822
- USGS site number
- 12201500
- Records begin
- 1943-08-01 (83 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Samish River near Burlington, WA. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.
| Date | Low p10 | Expected p50 | High p90 | Range |
|---|---|---|---|---|
| 14.5 | 15.2 | 15.8 | ||
| 13.9 | 14.8 | 15.7 | ||
| 13.6 | 14.7 | 16 | ||
| 13.6 | 14.9 | 17 | ||
| 13.7 | 15.2 | 17.5 | ||
| 13.3 | 14.7 | 16.7 | ||
| 12.8 | 14.1 | 15.9 | ||
| 12.4 | 13.8 | 15.5 | ||
| 12 | 13.4 | 15 | ||
| 11.7 | 13.1 | 14.8 | ||
| 11.3 | 12.9 | 14.6 | ||
| 11.1 | 12.7 | 14.5 | ||
| 10.9 | 12.5 | 14.4 | ||
| 10.8 | 12.5 | 14.5 |
All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 83 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 | 189.5 | 399.9 | 965.7 | |
| February | 178.1 | 325.9 | 813.1 | |
| March | 166.1 | 318.8 | 594 | |
| April | 150.7 | 252.4 | 476.1 | |
| May | 79.4 | 158.1 | 302 | |
| June | 44.1 | 88 | 201.5 | |
| July | 26 | 45.9 | 96 | |
| August | 21.2 | 30.9 | 56 | |
| September | 21.2 | 31.6 | 82.7 | |
| October | 33 | 86.7 | 288.4 | |
| November | 98.2 | 269.6 | 698.9 | |
| December | 150.5 | 346.6 | 838 |
All values in cubic feet per second (cfs).
Common questions
- When does Samish River near Burlington, WA normally run highest?
- January, on the long-term record. The median daily flow that month is about 399.9 cfs, against 30.9 cfs in August, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Samish River near Burlington, WA?
- It depends on the month. In January, half of days historically fall near 399.9 cfs, with the middle 80% of days between 189.5 and 965.7 cfs. The month-by-month table on this page gives the full range.
- How long has Samish River near Burlington, WA been measured?
- Discharge records at USGS site 12201500 begin in 1943, about 83 years, covering roughly 9,200 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for Samish River near Burlington, WA?
- Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
- Where is Samish River near Burlington, WA?
- The gauge sits at 48.54594, -122.33822, in Washington, in hydrologic subbasin 17110002, at an elevation of about 43 feet, draining roughly 88 square miles.
- Can I use Samish River near Burlington, WA 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.