2 USGS Streamgages
Colorado Rvr flows and levels
Colorado Rvr is gauged at 2 USGS streamgages in Arizona, each tracked by Rivermatics. It feeds the Colorado River. The gauged reach falls about 1,223 feet, from 1,340 feet down to 117. Rivermatics issues a daily machine-learned 14-day flow outlook for every one of them.
Gauges on this river, upstream to downstream
Ordered by drainage area, which is how far down the river each gauge sits. April and July figures are long-term median daily flows for that month from the USGS record — historical normals, not a forecast and not today's reading.
| Gauge | State | Drainage sq mi | Elevation ft | April p50 cfs | July p50 cfs | Forecast |
|---|---|---|---|---|---|---|
| Colorado Rvr above Diamond Creek near Peach Springs, AZ | AZ | 149,316 | 1,340 | 11,746.7 | 15,393.5 | 14-day |
| Colorado Rvr above Ocean to Ocean Bridge near Yuma, AZ | AZ | — | 117 | 760.6 | 564.2 | 14-day |
Typical flow by month at Colorado Rvr above Ocean to Ocean Bridge near Yuma, AZ
The furthest-downstream gauge on this river, so the fullest flow it carries here. Long-term daily discharge percentiles from the USGS record (up to 4 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 | — | 572.3 | — | |
| February | — | 654.3 | — | |
| March | — | 883.6 | — | |
| April | — | 760.6 | — | |
| May | — | 481.2 | — | |
| June | — | 509.7 | — | |
| July | — | 564.2 | — | |
| August | — | 593 | — | |
| September | — | 552.9 | — | |
| October | — | 406.1 | — | |
| November | — | 480 | — | |
| December | — | 494 | — |
All values in cubic feet per second (cfs).
Common questions
- When does the Colorado Rvr run highest?
- March, on the long-term record at Colorado Rvr above Ocean to Ocean Bridge near Yuma, AZ — the furthest-downstream gauge Rivermatics tracks on this river. Median daily flow there is about 883.6 cfs that month, against 406.1 cfs in October, the lowest. Upstream gauges peak on their own schedule; the table on this page gives April and July for each.
- How many gauges are on the Colorado Rvr?
- Rivermatics tracks 2 USGS streamgages on the Colorado Rvr, across Arizona. Each has its own page with the site's full flow record and monthly normals. The river may carry other gauges that publish neither daily values nor discharge statistics; those are not tracked here.
- Is there a flow forecast for the Colorado Rvr?
- Yes, at 2 of the 2 gauges. Rivermatics trains a machine-learned model — a temporal-fusion transformer — on each basin's observed flows, weather and snowpack, and issues a daily 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 each gauge's live screen.
- Can I use Colorado Rvr 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.