USGS Streamgage 12459000
Wenatchee River at Peshastin, WA
Wenatchee River at Peshastin, WA is USGS streamgage 12459000 in Washington, monitoring river discharge in hydrologic subbasin 17020011. It sits on the Wenatchee River, alongside 2 other gauges Rivermatics tracks on the same river. It drains a watershed of about 1,000 square miles. Discharge records at this site go back to 1929. Typical flow runs near 3,528.7 cfs in July and 3,331.3 cfs in April, with the higher of the two arriving in July. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.
View live conditions & forecast →
Gauge details
- State
- Washington
- Drainage area
- 1,000 sq mi
- Gauge elevation
- 1,033 ft
- Subbasin (HUC-8)
- 17020011
- Coordinates
- 47.58314, -120.6195
- USGS site number
- 12459000
- Records begin
- 1929-03-01 (97 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Wenatchee River at Peshastin, WA. Each day carries a median estimate and the band the model expects the flow to fall within — not a single number to plan against. Forecasts are re-issued daily; see the live screen for the current outlook.
| Date | Low p10 | Expected p50 | High p90 | Range |
|---|---|---|---|---|
| 329 | 348 | 365 | ||
| 323 | 346 | 371 | ||
| 345 | 385 | 464 | ||
| 370 | 431 | 571 | ||
| 362 | 420 | 543 | ||
| 345 | 397 | 495 | ||
| 329 | 376 | 461 | ||
| 320 | 366 | 445 | ||
| 310 | 354 | 426 | ||
| 301 | 344 | 412 | ||
| 292 | 335 | 398 | ||
| 285 | 329 | 390 | ||
| 276 | 320 | 380 | ||
| 270 | 314 | 373 |
All values in cubic feet per second (cfs). Estimates only — do not use them for navigation or for any safety, rescue, or emergency decision.
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 98 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 | 607.9 | 1,198.7 | 2,976.5 | |
| February | 654.3 | 1,172.4 | 3,234.5 | |
| March | 874.2 | 1,507.1 | 3,431.6 | |
| April | 1,799.3 | 3,331.3 | 6,236.3 | |
| May | 4,139 | 7,120 | 12,651 | |
| June | 4,216 | 7,773.7 | 13,203.3 | |
| July | 1,514.9 | 3,528.7 | 8,046.8 | |
| August | 648.9 | 1,114.5 | 2,506.8 | |
| September | 449 | 670.6 | 1,233.3 | |
| October | 413.9 | 791.8 | 2,289.4 | |
| November | 595 | 1,351 | 4,103.7 | |
| December | 615 | 1,298.4 | 3,543.9 |
All values in cubic feet per second (cfs).
Common questions
- When does Wenatchee River at Peshastin, WA normally run highest?
- June, on the long-term record. The median daily flow that month is about 7,773.7 cfs, against 670.6 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 Wenatchee River at Peshastin, WA?
- It depends on the month. In January, half of days historically fall near 1,198.7 cfs, with the middle 80% of days between 607.9 and 2,976.5 cfs. The month-by-month table on this page gives the full range.
- How long has Wenatchee River at Peshastin, WA been measured?
- Discharge records at USGS site 12459000 begin in 1929, about 97 years, covering roughly 9,200 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for Wenatchee River at Peshastin, WA?
- Yes. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on this basin's observed flows, weather, and snowpack, and issues a daily flow outlook reaching 14 days ahead: a median estimate inside a confidence band, not a single number to bet on. Every forecast is scored against days the model never trained on, and that track record is published on the live gauge screen. Open live conditions to see the current outlook.
- Where is Wenatchee River at Peshastin, WA?
- The gauge sits at 47.58314, -120.6195, in Washington, in hydrologic subbasin 17020011, at an elevation of about 1,033 feet, draining roughly 1,000 square miles.
- Can I use Wenatchee River at Peshastin, 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.
Upstream and downstream on the Wenatchee River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Wenatchee River in full.
- Wenatchee River at Plain, WA 591 sq mi
- Wenatchee River at Peshastin, WA this page
- Wenatchee River at Monitor, WA 1,301 sq mi