USGS Streamgage 12187500
Sauk River at Darrington, WA
Sauk River at Darrington, WA is USGS streamgage 12187500 in Washington, monitoring river discharge in hydrologic subbasin 17110006. It sits on the Sauk River, alongside 2 other gauges Rivermatics tracks on the same river. It drains a watershed of about 293 square miles. Discharge records at this site go back to 1815. Typical flow runs near 2,086.5 cfs in July and 1,923 cfs in April, with the higher of the two arriving in July.
Gauge details
- State
- Washington
- Drainage area
- 293 sq mi
- Gauge elevation
- 1,139 ft
- Subbasin (HUC-8)
- 17110006
- Coordinates
- 48.24983, -121.58457
- USGS site number
- 12187500
- Records begin
- 1815-01-01 (211 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 103 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 | 537.5 | 1,254.5 | 5,059.7 | |
| February | 522.2 | 1,406.2 | 4,810.4 | |
| March | 621 | 1,365.5 | 3,451.6 | |
| April | 1,022.3 | 1,923 | 3,557.7 | |
| May | 1,585.8 | 2,760.3 | 5,178.1 | |
| June | 1,256.5 | 3,337 | 5,984.7 | |
| July | 880.1 | 2,086.5 | 4,312.6 | |
| August | 536.8 | 908.6 | 1,731.9 | |
| September | 416.2 | 643.7 | 1,713.4 | |
| October | 406.5 | 1,026.2 | 3,859.4 | |
| November | 612.4 | 1,540.3 | 4,840.7 | |
| December | 610.8 | 1,454.5 | 6,368.1 |
All values in cubic feet per second (cfs).
Common questions
- When does Sauk River at Darrington, WA normally run highest?
- June, on the long-term record. The median daily flow that month is about 3,337 cfs, against 643.7 cfs in September, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Sauk River at Darrington, WA?
- It depends on the month. In January, half of days historically fall near 1,254.5 cfs, with the middle 80% of days between 537.5 and 5,059.7 cfs. The month-by-month table on this page gives the full range.
- How long has Sauk River at Darrington, WA been measured?
- Discharge records at USGS site 12187500 begin in 1815, about 211 years, covering roughly 5,332 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Sauk River at Darrington, WA?
- The gauge sits at 48.24983, -121.58457, in Washington, in hydrologic subbasin 17110006, at an elevation of about 1,139 feet, draining roughly 293 square miles.
- Can I use Sauk River at Darrington, 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.
Upstream and downstream on the Sauk River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Sauk River in full.
- Sauk River Ab White Chuck River near Darrington, WA 152 sq mi
- Sauk River at Darrington, WA this page
- Sauk River near Sauk, WA 714 sq mi