USGS Streamgage 12143000
North Fork Snoqualmie River near North Bend, WA
North Fork Snoqualmie River near North Bend, WA is USGS streamgage 12143000 in Washington, monitoring river discharge in hydrologic subbasin 17110010. It drains a watershed of about 96 square miles. Discharge records at this site go back to 1907. Typical flow runs near 338.6 cfs in July and 725.3 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Washington
- Drainage area
- 96 sq mi
- Gauge elevation
- 495 ft
- Subbasin (HUC-8)
- 17110010
- Coordinates
- 47.5373, -121.74176
- USGS site number
- 12143000
- Records begin
- 1907-08-01 (119 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 65 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 | 256.2 | 638.8 | 2,249.4 | |
| February | 236.5 | 512.7 | 1,451.8 | |
| March | 275.4 | 523.1 | 1,370.9 | |
| April | 412.9 | 725.3 | 1,437.7 | |
| May | 543.8 | 932.2 | 1,674.5 | |
| June | 386.6 | 820.7 | 1,642 | |
| July | 163.9 | 338.6 | 908.3 | |
| August | 73.7 | 137.9 | 348.5 | |
| September | 70.3 | 162.5 | 656.2 | |
| October | 121.5 | 346.6 | 1,264.2 | |
| November | 245.3 | 652.2 | 1,819 | |
| December | 289.1 | 630.7 | 2,317.7 |
All values in cubic feet per second (cfs).
Common questions
- When does North Fork Snoqualmie River near North Bend, WA normally run highest?
- May, on the long-term record. The median daily flow that month is about 932.2 cfs, against 137.9 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 North Fork Snoqualmie River near North Bend, WA?
- It depends on the month. In January, half of days historically fall near 638.8 cfs, with the middle 80% of days between 256.2 and 2,249.4 cfs. The month-by-month table on this page gives the full range.
- How long has North Fork Snoqualmie River near North Bend, WA been measured?
- Discharge records at USGS site 12143000 begin in 1907, about 119 years. The long record is what makes the monthly percentiles on this page meaningful.
- Where is North Fork Snoqualmie River near North Bend, WA?
- The gauge sits at 47.5373, -121.74176, in Washington, in hydrologic subbasin 17110010, at an elevation of about 495 feet, draining roughly 96 square miles.
- Can I use North Fork Snoqualmie River near North Bend, 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.
Other gauges in this subbasin
- SF Snoqualmie River Ab Alice Creek near Garcia, WA
- SF Snoqualmie River at Edgewick, WA
- Boxley Creek near Cedar Falls, WA
- Boxley Creek near Edgewick, WA
- SF Snoqualmie River at North Bend, WA
- Snoqualmie River near Snoqualmie, WA
- Raging River near Fall City, WA
- NF Tolt River above Yellow Creek near Carnation, WA