USGS Streamgage 09522000
Colorado River at Nib, above Morelos Dam, AZ
Colorado River at Nib, above Morelos Dam, AZ is USGS streamgage 09522000 in Arizona, monitoring river discharge in hydrologic subbasin 15030108. It sits on the Colorado River, alongside 30 other gauges Rivermatics tracks on the same river. It drains a watershed of about 246,700 square miles. Discharge records at this site go back to 1950. Typical flow runs near 2,629 cfs in July and 3,252 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- Arizona
- Drainage area
- 246,700 sq mi
- Gauge elevation
- 119 ft
- Subbasin (HUC-8)
- 15030108
- Coordinates
- 32.71866, -114.71884
- USGS site number
- 09522000
- Records begin
- 1950-01-01 (76 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 77 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 | 1,039.5 | 1,978.1 | 13,248.4 | |
| February | 1,374.4 | 2,426.6 | 11,965.5 | |
| March | 2,379 | 3,094.8 | 10,638.4 | |
| April | 2,456.7 | 3,252 | 9,721 | |
| May | 1,289.4 | 1,812.9 | 9,270 | |
| June | 1,586 | 2,145.7 | 5,992.7 | |
| July | 1,733.9 | 2,629 | 6,648.7 | |
| August | 1,379.7 | 2,439.4 | 7,412.6 | |
| September | 1,266.7 | 1,520 | 6,996.3 | |
| October | 728.2 | 1,018.8 | 5,471.9 | |
| November | 758.3 | 1,394.3 | 6,812.3 | |
| December | 1,036.2 | 1,749 | 10,149.7 |
All values in cubic feet per second (cfs).
Common questions
- When does Colorado River at Nib, above Morelos Dam, AZ normally run highest?
- April, on the long-term record. The median daily flow that month is about 3,252 cfs, against 1,018.8 cfs in October, the lowest month. These are historical normals for the date, not a forecast and not today's reading.
- What is a normal flow for Colorado River at Nib, above Morelos Dam, AZ?
- It depends on the month. In January, half of days historically fall near 1,978.1 cfs, with the middle 80% of days between 1,039.5 and 13,248.4 cfs. The month-by-month table on this page gives the full range.
- How long has Colorado River at Nib, above Morelos Dam, AZ been measured?
- Discharge records at USGS site 09522000 begin in 1950, about 76 years, covering roughly 9,094 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Colorado River at Nib, above Morelos Dam, AZ?
- The gauge sits at 32.71866, -114.71884, in Arizona, in hydrologic subbasin 15030108, at an elevation of about 119 feet, draining roughly 246,700 square miles.
- Can I use Colorado River at Nib, above Morelos Dam, AZ 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 Colorado River
Every gauge Rivermatics tracks on this river, ordered by drainage area — upstream first. See the Colorado River in full.
- Colorado River below Baker Gulch near Grand Lake, CO 64 sq mi
- Colorado River below Shadow Mountain Reservoir, CO 190 sq mi
- Colorado River below Lake Granby, CO 312 sq mi
- Colorado River near Granby, CO 323 sq mi
- Colorado River at Windy Gap, near Granby, CO 788 sq mi
- Colorado River near Kremmling, CO 2,379 sq mi
- Colorado River at Catamount Bridge, CO 2,930 sq mi
- Colorado River near Dotsero, CO 4,390 sq mi
- Colorado River above Glenwood Springs, CO 4,556 sq mi
- Colorado River above Roaring Fork River at Glenwood Springs, CO 4,560 sq mi
- Colorado River below Glenwood Springs, CO 6,014 sq mi
- Colorado River below South Canyon Creek near Glenwood Springs, CO 6,050 sq mi
- Colorado River near Cameo, CO 7,986 sq mi
- Colorado River near Colorado-Utah State Line 17,849 sq mi
- Colorado River near Cisco, UT 24,100 sq mi
- Colorado River at Potash, UT 25,406 sq mi
- Colorado River at Gypsum Canyon near Hite, UT 71,200 sq mi
- Colorado River Ab Dirty Devil River near Hite, UT 75,530 sq mi
- Colorado River at Lees Ferry, AZ 111,800 sq mi
- Colorado River above Little Colorado River near Desert View 114,272 sq mi
- Colorado River near Grand Canyon, AZ 141,600 sq mi
- Colorado River above National Canyon near Supai 147,931 sq mi
- Colorado River below Hoover Dam, Az-Nv 171,700 sq mi
- Colorado River below Palo Verde Dam, Az-Ca 182,200 sq mi
- Colorado River above Imperial Dam, Az-Ca 188,500 sq mi
- Colorado River below Imperial Dam, Az-Ca 188,500 sq mi
- Colorado River below Laguna Dam, Az-Ca 188,600 sq mi
- Colorado River below Yuma Main Canal Ww at Yuma, AZ 246,500 sq mi
- Colorado River at Nib, above Morelos Dam, AZ this page
- Colorado River below Cooper Wasteway near Yuma, AZ
- Colorado River. above Gunnison River. at Grand Junction, CO
Other gauges in this subbasin
- Colorado River below Cooper Wasteway near Yuma, AZ
- Gila Gravity Canal at Yuma-Mesa Pumping Plant, AZ
- McAs Diversion of B Canal near Yuma, AZ
- Unit B Canal near Yuma, AZ
- Yuma Main Canal below Colorado River. Siphon at Yuma, AZ
- Yuma Main Drain above Arizona-Sonora Boundary
- 242 Lateral above Main Drain at Az-Sonora Boundry