USGS Streamgage 14046000
North Fork John Day River at Monument, OR
North Fork John Day River at Monument, OR is USGS streamgage 14046000 in Oregon, monitoring river discharge in hydrologic subbasin 17070202. It drains a watershed of about 2,520 square miles. Discharge records at this site go back to 1925. Typical flow runs near 276.6 cfs in July and 3,191 cfs in April, with the higher of the two arriving in April. Rivermatics issues a daily machine-learned flow outlook for this gauge, reaching 14 days ahead.
View live conditions & forecast →
Gauge details
- State
- Oregon
- Drainage area
- 2,520 sq mi
- Subbasin (HUC-8)
- 17070202
- Coordinates
- 44.81492, -119.432
- USGS site number
- 14046000
- Records begin
- 1925-04-11 (101 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for North Fork John Day River at Monument, OR. 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 |
|---|---|---|---|---|
| 59.7 | 63 | 66.4 | ||
| 55.7 | 60.5 | 66.2 | ||
| 56.2 | 63.9 | 77.5 | ||
| 58.1 | 69 | 89.6 | ||
| 56.7 | 68.6 | 90.3 | ||
| 54.6 | 66.9 | 87.5 | ||
| 51.8 | 63.9 | 83.7 | ||
| 49.2 | 60.9 | 79.1 | ||
| 46.6 | 58.2 | 76 | ||
| 44.8 | 56.3 | 73.6 | ||
| 43.6 | 55.4 | 73 | ||
| 42.4 | 54.2 | 71.8 | ||
| 41.3 | 53.4 | 71.7 | ||
| 40.2 | 52.5 | 71.5 |
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 | 184.2 | 492 | 2,082.6 | |
| February | 258.3 | 951.3 | 3,171.4 | |
| March | 767.7 | 1,889.4 | 5,002.3 | |
| April | 1,475.3 | 3,191 | 6,504.3 | |
| May | 1,398.5 | 3,146.5 | 6,352.9 | |
| June | 514.3 | 1,356.8 | 3,154.7 | |
| July | 131.3 | 276.6 | 670.6 | |
| August | 53.8 | 105.7 | 227.3 | |
| September | 58.9 | 97.2 | 180.8 | |
| October | 87.6 | 137.6 | 238.7 | |
| November | 111.5 | 201.8 | 569.5 | |
| December | 110.3 | 313.2 | 1,511.8 |
All values in cubic feet per second (cfs).
Common questions
- When does North Fork John Day River at Monument, OR normally run highest?
- April, on the long-term record. The median daily flow that month is about 3,191 cfs, against 97.2 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 North Fork John Day River at Monument, OR?
- It depends on the month. In January, half of days historically fall near 492 cfs, with the middle 80% of days between 184.2 and 2,082.6 cfs. The month-by-month table on this page gives the full range.
- How long has North Fork John Day River at Monument, OR been measured?
- Discharge records at USGS site 14046000 begin in 1925, about 101 years, covering roughly 9,199 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Is there a flow forecast for North Fork John Day River at Monument, OR?
- 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 North Fork John Day River at Monument, OR?
- The gauge sits at 44.81492, -119.432, in Oregon, in hydrologic subbasin 17070202, draining roughly 2,520 square miles.
- Can I use North Fork John Day River at Monument, OR 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.