USGS Streamgage 09359020
Animas River below Silverton, CO
Animas River below Silverton, CO is USGS streamgage 09359020 in Colorado, monitoring river discharge in hydrologic subbasin 14080104. It sits on the Animas River, alongside 8 other gauges Rivermatics tracks on the same river. It drains a watershed of about 146 square miles. Discharge records at this site go back to 1991. Typical flow runs near 354.5 cfs in July and 159.1 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, alongside daily high and low water-temperature forecasts.
View live conditions & forecast →
Gauge details
- State
- Colorado
- Drainage area
- 146 sq mi
- Gauge elevation
- 9,196 ft
- Subbasin (HUC-8)
- 14080104
- Coordinates
- 37.78833, -107.66822
- USGS site number
- 09359020
- Records begin
- 1991-10-01 (35 years)
- Rivermatics forecast
- 14-day flow outlook + water temperature
14-day flow forecast
Based on observations through for Animas River below Silverton, CO. 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 |
|---|---|---|---|---|
| 77.2 | 79.6 | 81.7 | ||
| 75.6 | 78.6 | 81.5 | ||
| 74.5 | 77.9 | 81.5 | ||
| 75.3 | 79.8 | 87 | ||
| 77.6 | 86 | 117 | ||
| 81 | 95.1 | 158 | ||
| 79.1 | 92.2 | 144 | ||
| 77.9 | 89.6 | 126 | ||
| 76.4 | 86.8 | 113 | ||
| 73.9 | 83.4 | 103 | ||
| 72.3 | 81.5 | 97.3 | ||
| 70.8 | 80.3 | 97.1 | ||
| 68.8 | 78.6 | 93.9 | ||
| 67.3 | 77.4 | 91.2 |
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 35 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 | 44.4 | 62.9 | 77.5 | |
| February | 43.1 | 56.3 | 76.9 | |
| March | 47.1 | 67.5 | 116.2 | |
| April | 94.9 | 159.1 | 289.8 | |
| May | 284 | 572.5 | 1,174.1 | |
| June | 363.3 | 941.4 | 1,781.7 | |
| July | 135.2 | 354.5 | 848.2 | |
| August | 93.9 | 184 | 417.5 | |
| September | 82.4 | 128.8 | 311.1 | |
| October | 74.1 | 113.2 | 246.4 | |
| November | 57.1 | 84.4 | 113.4 | |
| December | 50 | 66.7 | 84.4 |
All values in cubic feet per second (cfs).
Common questions
- When does Animas River below Silverton, CO normally run highest?
- June, on the long-term record. The median daily flow that month is about 941.4 cfs, against 56.3 cfs in February, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Animas River below Silverton, CO?
- It depends on the month. In January, half of days historically fall near 62.9 cfs, with the middle 80% of days between 44.4 and 77.5 cfs. The month-by-month table on this page gives the full range.
- How long has Animas River below Silverton, CO been measured?
- Discharge records at USGS site 09359020 begin in 1991, about 35 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 Animas River below Silverton, CO?
- 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. A companion model forecasts each day's water-temperature high and low. 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 Animas River below Silverton, CO?
- The gauge sits at 37.78833, -107.66822, in Colorado, in hydrologic subbasin 14080104, at an elevation of about 9,196 feet, draining roughly 146 square miles.
- Can I use Animas River below Silverton, CO 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 Animas River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Animas River in full.
- Animas River at Silverton, CO 71 sq mi
- Animas River below Silverton, CO this page
- Animas River at Tall Timber Resort above Tacoma, CO 338 sq mi
- Animas River at Durango, CO 701 sq mi
- Animas River below Durango Pump Plant near Durango, CO 775 sq mi
- Animas River near Cedar Hill, NM 1,090 sq mi
- Animas River below Aztec, NM 1,301 sq mi
- Animas River at Penny Lane near Flora Vista, NM 1,340 sq mi
- Animas River at Farmington, NM 1,360 sq mi
Other gauges in this subbasin
- Cascade Creek above Cascade Creek Diversion near Rockwood, CO
- Cascade Creek below Cascade Creek Diversion near Rockwood, CO
- Animas River at Tall Timber Resort above Tacoma, CO
- Hermosa Creek near Hermosa, CO
- Animas River at Durango, CO
- Animas River below Durango Pump Plant near Durango, CO
- Animas River near Cedar Hill, NM
- Animas River below Aztec, NM