USGS Streamgage 12142000
NF Snoqualmie River near Snoqualmie Falls, WA
NF Snoqualmie River near Snoqualmie Falls, WA is USGS streamgage 12142000 in Washington, monitoring river discharge in hydrologic subbasin 17110010. It drains a watershed of about 64 square miles. Discharge records at this site go back to 1929. Typical flow runs near 220 cfs in July and 494.2 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Washington
- Drainage area
- 64 sq mi
- Gauge elevation
- 1,137 ft
- Subbasin (HUC-8)
- 17110010
- Coordinates
- 47.61483, -121.71344
- USGS site number
- 12142000
- Records begin
- 1929-10-01 (97 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 97 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 | 182.7 | 421.5 | 1,554.9 | |
| February | 167.2 | 354.8 | 1,059.4 | |
| March | 200.3 | 372.8 | 943 | |
| April | 289.1 | 494.2 | 1,002.5 | |
| May | 357.1 | 643.3 | 1,206.5 | |
| June | 261.8 | 540.3 | 1,109.4 | |
| July | 101.7 | 220 | 571.5 | |
| August | 46.8 | 83.1 | 245.4 | |
| September | 44.3 | 102.8 | 445.5 | |
| October | 73.5 | 240.7 | 967.1 | |
| November | 175.6 | 475.8 | 1,499.3 | |
| December | 195.5 | 432.2 | 1,524.9 |
All values in cubic feet per second (cfs).
Other gauges in this subbasin
- North Fork Snoqualmie River near North Bend, WA
- 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