USGS Streamgage 12099600
Boise Creek at Buckley, WA
Boise Creek at Buckley, WA is USGS streamgage 12099600 in Washington, monitoring river discharge in hydrologic subbasin 17110014. It drains a watershed of about 15 square miles. Discharge records at this site go back to 1977. Typical flow runs near 10.4 cfs in July and 33.1 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Washington
- Drainage area
- 15 sq mi
- Gauge elevation
- 640 ft
- Subbasin (HUC-8)
- 17110014
- Coordinates
- 47.17594, -122.01845
- USGS site number
- 12099600
- Records begin
- 1977-03-11 (49 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 49 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 | 19.2 | 45.3 | 129.2 | |
| February | 19.6 | 42.7 | 112.8 | |
| March | 18.8 | 39.1 | 87.6 | |
| April | 18.9 | 33.1 | 71.6 | |
| May | 13 | 24.6 | 57.9 | |
| June | 8.3 | 18 | 51.3 | |
| July | 5.9 | 10.4 | 20.8 | |
| August | 4.3 | 7 | 12.8 | |
| September | 3.5 | 6.6 | 15.7 | |
| October | 4.8 | 9.7 | 31.6 | |
| November | 9.2 | 28.3 | 98.6 | |
| December | 16.8 | 38.5 | 109.8 |
All values in cubic feet per second (cfs).
Common questions
- When does Boise Creek at Buckley, WA normally run highest?
- January, on the long-term record. The median daily flow that month is about 45.3 cfs, against 6.6 cfs in September, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Boise Creek at Buckley, WA?
- It depends on the month. In January, half of days historically fall near 45.3 cfs, with the middle 80% of days between 19.2 and 129.2 cfs. The month-by-month table on this page gives the full range.
- How long has Boise Creek at Buckley, WA been measured?
- Discharge records at USGS site 12099600 begin in 1977, about 49 years, covering roughly 8,752 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Boise Creek at Buckley, WA?
- The gauge sits at 47.17594, -122.01845, in Washington, in hydrologic subbasin 17110014, at an elevation of about 640 feet, draining roughly 15 square miles.
- Can I use Boise Creek at Buckley, 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.