USGS Streamgage 12331800
Clark Fork near Drummond, MT
Clark Fork near Drummond, MT is USGS streamgage 12331800 in Montana, monitoring river discharge in hydrologic subbasin 17010202. It sits on the Clark Fork, alongside 12 other gauges Rivermatics tracks on the same river. It drains a watershed of about 2,516 square miles. Discharge records at this site go back to 1993. Typical flow runs near 534.8 cfs in July and 763.4 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
- Montana
- Drainage area
- 2,516 sq mi
- Gauge elevation
- 3,794 ft
- Subbasin (HUC-8)
- 17010202
- Coordinates
- 46.71191, -113.33078
- USGS site number
- 12331800
- Records begin
- 1993-04-01 (33 years)
- Rivermatics forecast
- 14-day flow outlook
14-day flow forecast
Based on observations through for Clark Fork near Drummond, MT. 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 |
|---|---|---|---|---|
| 398 | 419 | 443 | ||
| 382 | 413 | 448 | ||
| 368 | 405 | 450 | ||
| 354 | 395 | 444 | ||
| 343 | 388 | 443 | ||
| 332 | 381 | 442 | ||
| 325 | 377 | 440 | ||
| 317 | 372 | 443 | ||
| 307 | 367 | 445 | ||
| 300 | 363 | 448 | ||
| 291 | 354 | 440 | ||
| 285 | 350 | 440 | ||
| 280 | 344 | 435 | ||
| 279 | 352 | 472 |
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 33 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 | 310.2 | 498.1 | 681.2 | |
| February | 334.1 | 532 | 804 | |
| March | 454.4 | 628.5 | 1,003.5 | |
| April | 505.7 | 763.4 | 1,476.3 | |
| May | 465.3 | 1,075 | 2,480 | |
| June | 555.4 | 1,274.2 | 3,257.7 | |
| July | 277.9 | 534.8 | 1,552.2 | |
| August | 172.8 | 282.8 | 688.6 | |
| September | 228.2 | 379.4 | 689.1 | |
| October | 417.3 | 572.5 | 808.3 | |
| November | 445 | 568.4 | 807.1 | |
| December | 340.7 | 511.3 | 677.5 |
All values in cubic feet per second (cfs).
Common questions
- When does Clark Fork near Drummond, MT normally run highest?
- June, on the long-term record. The median daily flow that month is about 1,274.2 cfs, against 282.8 cfs in August, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Clark Fork near Drummond, MT?
- It depends on the month. In January, half of days historically fall near 498.1 cfs, with the middle 80% of days between 310.2 and 681.2 cfs. The month-by-month table on this page gives the full range.
- How long has Clark Fork near Drummond, MT been measured?
- Discharge records at USGS site 12331800 begin in 1993, about 33 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 Clark Fork near Drummond, MT?
- 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 Clark Fork near Drummond, MT?
- The gauge sits at 46.71191, -113.33078, in Montana, in hydrologic subbasin 17010202, at an elevation of about 3,794 feet, draining roughly 2,516 square miles.
- Can I use Clark Fork near Drummond, MT 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 Clark Fork
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Clark Fork in full.
- Clark Fork near Galen, MT 656 sq mi
- Clark Fork at Deer Lodge, MT 1,001 sq mi
- Clark Fork ab Little Blackfoot River near Garrison, MT 1,130 sq mi
- Clark Fork at Goldcreek, MT 1,774 sq mi
- Clark Fork near Drummond, MT this page
- Clark Fork at Turah Bridge near Bonner, MT 3,657 sq mi
- Clark Fork above Missoula, MT 6,021 sq mi
- Clark Fork below Missoula, MT 9,017 sq mi
- Clark Fork at Superior, MT 10,210 sq mi
- Clark Fork near Paradise, MT 10,709 sq mi
- Clark Fork at St. Regis, MT 10,728 sq mi
- Clark Fork near Plains, MT 19,964 sq mi
- Clark Fork below Noxon Rapids Dam near Noxon, MT 21,709 sq mi