USGS Streamgage 12089000
Tanwax Creek near McKenna, WA
Tanwax Creek near McKenna, WA is USGS streamgage 12089000 in Washington, monitoring river discharge in hydrologic subbasin 17110015. It drains a watershed of about 26 square miles. Discharge records at this site go back to 1944. Typical flow runs near 3.2 cfs in July and 39.3 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Washington
- Drainage area
- 26 sq mi
- Gauge elevation
- 399 ft
- Subbasin (HUC-8)
- 17110015
- Coordinates
- 46.86507, -122.4526
- USGS site number
- 12089000
- Records begin
- 1944-12-01 (82 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 6 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 | — | 53.6 | — | |
| February | — | 68.7 | — | |
| March | — | 56.2 | — | |
| April | — | 39.3 | — | |
| May | — | 15.5 | — | |
| June | — | 8.1 | — | |
| July | — | 3.2 | — | |
| August | — | 1.7 | — | |
| September | — | 1.8 | — | |
| October | — | 3.3 | — | |
| November | — | 25.1 | — | |
| December | — | 49.2 | — |
All values in cubic feet per second (cfs).