USGS Streamgage 12144000
SF Snoqualmie River at North Bend, WA
SF Snoqualmie River at North Bend, WA is USGS streamgage 12144000 in Washington, monitoring river discharge in hydrologic subbasin 17110010. It drains a watershed of about 82 square miles. Discharge records at this site go back to 1907. Typical flow runs near 269.8 cfs in July and 630.5 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Washington
- Drainage area
- 82 sq mi
- Gauge elevation
- 433 ft
- Subbasin (HUC-8)
- 17110010
- Coordinates
- 47.49288, -121.79011
- USGS site number
- 12144000
- Records begin
- 1907-08-01 (119 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 119 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 | 244.9 | 518.5 | 1,423.9 | |
| February | 248.4 | 469.2 | 1,088.2 | |
| March | 292.4 | 498.8 | 1,015.3 | |
| April | 398.9 | 630.5 | 1,072.7 | |
| May | 489.9 | 788.8 | 1,331.3 | |
| June | 316.8 | 644.9 | 1,213.7 | |
| July | 167.3 | 269.8 | 608.5 | |
| August | 105.3 | 151.7 | 250.5 | |
| September | 90.7 | 133.6 | 287.1 | |
| October | 107.8 | 220.3 | 690.7 | |
| November | 210.9 | 464.6 | 1,266.3 | |
| December | 240.6 | 480.9 | 1,321 |
All values in cubic feet per second (cfs).
Other gauges in this subbasin
- Snoqualmie River near Snoqualmie, WA
- Raging River near Fall City, WA
- NF Tolt River above Yellow Creek near Carnation, WA
- North Fork Tolt River near Carnation, WA
- South Fork Tolt River near Index, WA
- Phelps Creek below Unnamed Tributary near Index, WA
- South Fork Tolt River near Carnation, WA
- SF Tolt River below Regulating Basin near Carnation, WA