About this river
Rio Grande is a 55.3 mile river near Cochiti Lake Boat Ramp in New Mexico. Streamflow is measured at the USGS gauge Rio Grande at Otowi Bridge, NM (site 08313000). The National Hydrography Dataset places it at stream order 9. Reach geometry comes from the USGS National Hydrography Dataset.
Typical flow by month
1971 to 2026
Rio Grande typically runs highest in May, at a median 2,890 cfs, and lowest in October, at 664 cfs. The highest flow on record for any single day is 12,000 cfs, in 1985.
| Month | Typical (cfs) | Usual range (cfs) | Relative level |
|---|---|---|---|
| January | 679 | 573 to 802 | |
| February | 729 | 616 to 864 | |
| March | 1,070 | 777 to 1,450 | |
| April | 1,375 | 910 to 2,880 | |
| May | 2,890 | 1,220 to 4,580 | |
| June | 1,700 | 1,145 to 4,025 | |
| July | 1,060 | 830 to 1,350 | |
| August | 916 | 692 to 1,100 | |
| September | 812 | 511 to 1,060 | |
| October | 664 | 473 to 925 | |
| November | 824 | 559 to 1,185 | |
| December | 791 | 610 to 1,090 |
Typical is the median of each month’s daily median values, and the usual range runs from the median 25th to the median 75th percentile, across about 55 years of record. Statistics published by the US Geological Survey for Rio Grande at Otowi Bridge, NM (site 08313000). Conditions on any given day can fall well outside the usual range. Check the current reading before you go.
Boat access nearby
2 mapped launches sit in the mapped area of Rio Grande, all of them public access. Ramp data comes from the USGS national boat-ramp inventory.
Embed this gauge on your site
Paste this snippet anywhere, an outfitter page, a club site, a trip report, to show Rio Grande's live streamflow, water level and 7-day trend. It reads the USGS gauge directly, updates itself, and links back here.
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