USGS Streamgage 12089500
Nisqually River at McKenna, WA
Nisqually River at McKenna, WA is USGS streamgage 12089500 in Washington, monitoring river discharge in hydrologic subbasin 17110015. It drains a watershed of about 517 square miles. Discharge records at this site go back to 1947. Typical flow runs near 535.5 cfs in July and 1,230.7 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Washington
- Drainage area
- 517 sq mi
- Gauge elevation
- 299 ft
- Subbasin (HUC-8)
- 17110015
- Coordinates
- 46.9334, -122.56093
- USGS site number
- 12089500
- Records begin
- 1947-10-01 (79 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 79 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 | 794.1 | 1,894.5 | 3,875.8 | |
| February | 750.7 | 1,795.5 | 3,815.9 | |
| March | 655.4 | 1,530.6 | 2,680.3 | |
| April | 626.8 | 1,230.7 | 2,389.7 | |
| May | 600.9 | 935.9 | 2,163.5 | |
| June | 445.3 | 695.8 | 1,829 | |
| July | 252.3 | 535.5 | 1,117.5 | |
| August | 196.1 | 426.4 | 902.6 | |
| September | 279 | 462.2 | 883 | |
| October | 518.5 | 651.9 | 1,341.9 | |
| November | 574 | 1,307.8 | 3,049.3 | |
| December | 718.8 | 1,902.3 | 4,185.5 |
All values in cubic feet per second (cfs).