USGS Streamgage 08313000
Rio Grande at Otowi Bridge, NM
Rio Grande at Otowi Bridge, NM is USGS streamgage 08313000 in New Mexico, monitoring river discharge in hydrologic subbasin 13020101. It drains a watershed of about 14,300 square miles. Discharge records at this site go back to 1895. Typical flow runs near 1,084.2 cfs in July and 1,435.7 cfs in April, with the higher of the two arriving in April.
Gauge details
- State
- New Mexico
- Drainage area
- 14,300 sq mi
- Gauge elevation
- 5,492 ft
- Subbasin (HUC-8)
- 13020101
- Coordinates
- 35.8745, -106.14244
- USGS site number
- 08313000
- Records begin
- 1895-02-01 (131 years)
Typical flow by month
Long-term daily discharge percentiles from the USGS record (up to 56 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 | 489.9 | 678.4 | 1,025.1 | |
| February | 541.3 | 733.2 | 1,152.7 | |
| March | 642.9 | 1,045.6 | 2,067.4 | |
| April | 763.3 | 1,435.7 | 3,896.3 | |
| May | 933 | 2,894.8 | 6,209.7 | |
| June | 819 | 1,851 | 5,773 | |
| July | 491.3 | 1,084.2 | 2,818.1 | |
| August | 434.7 | 916.1 | 1,431.6 | |
| September | 340.8 | 794.6 | 1,365.3 | |
| October | 348.4 | 660.1 | 1,286.5 | |
| November | 412.4 | 790.1 | 1,527.7 | |
| December | 489.2 | 775.2 | 1,458.4 |
All values in cubic feet per second (cfs).
Common questions
- When does Rio Grande at Otowi Bridge, NM normally run highest?
- May, on the long-term record. The median daily flow that month is about 2,894.8 cfs, against 660.1 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 Rio Grande at Otowi Bridge, NM?
- It depends on the month. In January, half of days historically fall near 678.4 cfs, with the middle 80% of days between 489.9 and 1,025.1 cfs. The month-by-month table on this page gives the full range.
- How long has Rio Grande at Otowi Bridge, NM been measured?
- Discharge records at USGS site 08313000 begin in 1895, about 131 years, covering roughly 9,126 days of published daily values. The long record is what makes the monthly percentiles on this page meaningful.
- Where is Rio Grande at Otowi Bridge, NM?
- The gauge sits at 35.8745, -106.14244, in New Mexico, in hydrologic subbasin 13020101, at an elevation of about 5,492 feet, draining roughly 14,300 square miles.
- Can I use Rio Grande at Otowi Bridge, NM 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.